thesis viva questions

Types of PhD Viva Questions

Generally, examiners prepare a series of questions for you to answer at the PhD viva voce examination. These questions are primarily based on your thesis. However, the questions asked in PhD viva examinations can be broadly grouped under four basic headings:

General Questions
Research Context and Methods
Analysis and Findings
Discussions and Conclusion/Implications

Therefore, while preparing for your PhD viva and defending your thesis , you must consider the types of questions you’re likely to be asked. This helps in practicing your answers in advance and not being baffled during the viva. Practicing how you would answer questions based on these four basic categories will take you a long way in your preparations.

Commonly Asked PhD Viva Questions and How to Answer Them

While sticking to answering the most commonly asked questions might sound simple, it is equally important to be prepared for counter questions. Furthermore, it’s easy to go off on a tangent due to nervousness. This leads to opening up other lines of enquiry from the examiners in areas you hadn’t probably expected to be questioned about.

Ideally, you aren’t expected to dictate your thesis as it is. Examiners are interested in knowing your understanding of the research, its methods, analysis and findings, conclusion and implications, etc.

Despite the differences in every PhD viva, you must be prepared to answer these common questions logically. Below are some popular PhD viva questions to prepare:

1. Tell me about yourself.

Introduce yourself and talk about your areas of interest related to research. More importantly, focus on the areas you are extremely positive about. Briefly speak about your past achievements without overwhelming the examiners and sounding boastful. Keep the introduction professional.

2. What is the reason for selecting this research question?

The response to this question is often generalized by saying that you are interested in the topic. However, examiners want to hear the specifications of your interest in the topic. You must plan your answer stating the most interesting aspect of your research and why did you choose the research question over another topic from the same or allied domain. Furthermore, cite certain instances that helped you in selecting the research topic and the particular field for your project.

3. What is the key focus of your research?

Remember that the answer to this question is not about summarizing your research. It involves talking about the area of primary focus of research. Most importantly, in order to demonstrate the viability of your research, it is essential to identify some of the key questions it addresses.

4. Did the research process go as per your plan or were there any unexpected circumstances that you had to deal with?

The purpose of this question is not only to see whether you can work as per your structured plan, but also to understand your readiness with backup plans in case of unforeseen situations. An ideal way to answer this is by clearly stating if the project went as per your predefined plan. Furthermore, be honest in mentioning if you were assisted by others in dealing with it, as it may lead to a new set of questioning from the examiners.

5. After completion of your research, which part of the process did you enjoy the most and why?

Remember that the examiners know about a PhD student’s stressful journey . Therefore, do not elaborate on the hardships that you went through during your research, unless asked otherwise. Emphasize on the aspects of the research project that you enjoyed and looked forward to every time you stepped in your laboratory. Describe how you developed interest in newer approaches to conduct research.

6. As a researcher, what change has this research brought in you?

This question demands a strong, progressive, and positive response. Remember your first day in the research laboratory and compare it to today. Identify the differences in your traits as a researcher. Mention how following, reading, and analyzing other researchers’ works have brought a positive change in you. Furthermore, address how you overcame your shortcomings as a researcher and upskilled yourself.

7. Summarize your thesis.

Be well versed with the entire project. Start by explaining why you selected the topic of your thesis and close your explanation by providing an optimum solution to the problem. You must prepare for 3 types of answers for this question. Prepare a 1-minute, 3-5 minutes, and 10-minute summary and use the correct one based on your audience at the viva.

8. What developments have you witnessed in this field since you began your doctorate? How did these developments change your research context?

Familiarize yourself with the advances in your field throughout your PhD. Mention works of researchers you have referred to while working on your project. Additionally, elaborate on how other researchers’ work influenced your research and directed you to finding results.

9. What original contribution has your thesis made to this field of study?

Answer this question by keeping in mind what was known before in published literature and what you have added as part of being awarded your PhD. Firstly, you must present a major piece of new information during your research project. Secondly, elaborate on how your research expands the existing literature. Thirdly, mention how your work is different from other researchers’ works that you referred. Finally, discuss how you developed a new product or improved an existing one.

10. How well did the study design work?

While answering this question, you must focus on how your planned methods and methodologies were executed. Furthermore, mention how you tackled difficulties in study design and concluded your research.

11. Elaborate on your main findings and how do they relate to literature in your field?

While answering this question, elaborate on how you evaluated the key findings in your research. Mention the key factors involved and the reason for choosing a particular process of evaluation. Furthermore, explain how your findings are related with the literature review of your project. Mention its significant contributions in your field of research. In addition, discuss how your research findings connect with your hypothesis as well as the conclusion of your research.

12. What is the strength and weakness of your research?

While you may want to impress the examiner by emphasizing on the strengths of your research, being aware of the weaknesses and planning a directional move to overcome them is also equally important. Hence, mention the strengths first and elaborate on how they connect with the key findings. Additionally, underline the limitations and the factors that could be transformed into strengths in future research.

How nervous were you while preparing for your PhD viva voce? Did you follow any specific tips to ace your PhD viva voce ? How important is it to prepare for these common PhD viva questions beforehand? Let us know how you prepared for your PhD viva voce in the comments section below! You can also visit our Q&A forum for frequently asked questions related to different aspects of research writing and publishing answered by our team that comprises subject-matter experts, eminent researchers, and publication experts.

Really useful in helping me put a plan / script together for my forthcoming viva. Some interesting questions that I hadn’t thought about before reading this article – the proof of the pudding will be how well the viva goes of course, but at least I now have a head start! Many thanks

Thank you, this is super helpful. I have my viva voce in a month and I’ll be using these questions as a guide

Well framed questions

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Top 10 Ph.D. Viva Questions and How to Answer Them

Every doctoral candidate will complete the Ph.D. viva to defend a thesis and seek that coveted doctorate degree. You've worked hard throughout your academic career, and now you face this intimidating meeting! Before your viva, you might feel nervous, picturing yourself tap dancing as fast as you can in front of a firing squad. But your viva should feel more like a confident performance of your crowning research for an audience of adoring fans. Take a breath—you've done good work, and soon the committee will see that, too.

What is a Ph.D. viva? In this case, viva is short for viva voce, Latin for "living voice." The term refers to contexts in which responses to something are given out loud for people to hear, for example a real-time vote (all in favor, say "aye"!). In the academic context, the Ph.D. viva is a discussion between you (the Ph.D. candidate) and a panel of academic experts, during which you present your Ph.D. thesis. The panel of experts can include an internal and/or external examiner, your Ph.D. supervisor, and other people you can request to be in attendance, like your family members.

The examiner's main purpose is to determine that you've written your own thesis and ask you some probing questions about the work you've done. It's intended to be an open, frank conversation about your research, not an interrogation. Don't be afraid to challenge points your examiner makes if they don't align with what you've found in your study. Your expertise and passion about your work will demonstrate that you know your stuff and care deeply about it.

Of course, in order to think clearly and objectively about the subject you've been immersed in for months, you will need a healthy dose of confidence. To help you gain that confidence to make your viva a positive experience, preparation is key. Here are some prompts and questions you might be asked and how you can prepare beforehand to answer them.

1. Tell us about your study

Usually the first question is an opener and is asked with the goal of breaking the ice and getting you talking about your thesis. The items the panel presents to you will start broad and get more specific and involved as your viva progresses. Since you're here to talk about your project, give a good overview of who you are, your history in the field, and the process you followed in your study. You will have a lot of potential detail to provide, but since you won't know how much your panel is looking for, prepare synopses of different lengths: 1-minute, 3-minute, and 5-minute summaries.

2. What are your main research questions and why did you select them?

You'll very likely be prompted to talk about your research questions in detail, so be prepared to list the questions you set out to answer and the motivation behind selecting each one. Also, be prepared to discuss your aims, objectives, and hypotheses, just in case they ask about those as well.

3. What original contribution has your thesis made to this field of study?

Before you began your study, you probably looked at the gaps in the existing literature and decided on a research direction to fill those gaps. Now that you've finished your research, tell your panel what the world knows now as a result of your work. When future researchers delve into your subject matter, what will they cite you on?

4. Whose work has most influenced yours?

Because you went through the process of determining what your field of study still needs in terms of research and the kind of analysis that will contribute to it, you possess a pretty clear understanding of what has already been done. A lot of that knowledge comes from your academic journey leading up to the awarding of your doctorate, during which you've read a lot of papers and delved into the work that has been done before yours. Talk about the most influential works you've encountered. This can be a work that inspired you or papers that you felt were done poorly and motivated you to get it right. Bonus: The chair of the viva will be someone who knows a lot about your field, so take some time to get familiar with his or her work. Don't be a stalker, but be prepared to mention that you know what he or she has done. Not only will that demonstrate that you've prepared yourself for your presentation, but it will also show an interest in his or her life's work, which can't hurt. Don't spend too long on this, though—you're here primarily to talk about your work, not theirs.

5. What are the strengths and weaknesses of your thesis?

You certainly want to brag about your thesis and offer reasons why you and your work are great, so don't hold back about what went right. Start with the strengths; outline your main findings and give reasons why your study enabled you to uncover them. Then, while it might feel counterintuitive to point out the ways that your thesis isn't the greatest ever, a report about the weaknesses of your research shows a sense of self-awareness and humility that benefits your study in that it paves the way for future researchers and shows that you aren't blind to your own potential for growth. If you prepare your response to this question before your viva, you can craft your response to show that you have already thought about the ways you can address the weaknesses of your thesis.

6. What ethical considerations did you apply?

Most Ph.D. candidates encounter ethical issues during the course of their research, and the committee might want to know whether you took measures to ensure an ethical project. Did you follow any ethical protocols in gathering data? Did you provide informed consent to participants in your study? What are the ethical implications of your work?

7. Did your study go as expected? If you had to start the thesis again, what would you do differently?

Every researcher has at least some idea of what he or she might find upon performing a study. Many form research questions and perform the study to provide support for that expected outcome, but sometimes the research leads to a different result. Consider what your own expectations were before you began and the path your research process took, either in alignment with that expectation or not. Knowing what you know now, would you change anything about your research? Would you approach the process differently? Maybe you would forego a step or two knowing that it wasn't as consequential or helpful as you originally thought.

8. Now that you've completed your study, what did you enjoy about the process?

Ph.D. thesis examiners are looking for a candidate who is passionate about the work. Remember that they know exactly how stressful the process is, so avoid delving into the hardships you encountered. Instead, give a summary of the high points and the reasons you were excited to keep going. While you should keep the tone professional and avoid gushing, feel free to talk about your personal motivation for pursuing this study.

9. If funding was no object, how would you follow up on this project?

Every researcher faces limits regarding the scope of a study that prevent them from gathering as much data as they'd like. Time limits, budget caps, and lack of interest or willingness among study participants can all put a damper on the dreams a researcher has for an analysis. Money can solve most obstacles within an examination, so dream big—what could you make happen with an infinite budget? This is another question that reveals your passion for the subject.

10.What are your plans for the future?

Questions might not be limited to your thesis, so give some thought to where you will go from here. Describe your plans for your future research or professional pursuits; this gives the panel a sense of your passion for the work and sets you apart from a doctoral candidate who is just trying to check the boxes and get a diploma in hand.

The questions your panel asks you on the day of your viva will probably not be exactly the ones listed in this article, but these topics will almost certainly be covered during the discussion with your examiner. If you prepare responses to these questions and make sure you know your thesis inside and out, you will be much more ready to answer whatever the experts ask you. Equally important, planning out your responses will also help calm your nerves before this very important event, so give yourself the gift of preparation as you anticipate your Ph.D. viva. Good luck—you'll do great!

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PhD Viva Voces – A Complete Guide
Doing a PhD
A PhD viva involves defending your thesis in an oral examination with at least two examiners.
The aim of a PhD viva is to confirm that the work is your own , that you have a deep understanding of your project and, overall, that you are a competent researcher .
There are no standard durations, but they usually range from one to three hours, with most lasting approximately two hours .
There are six outcomes of a PhD viva: (1) pass without corrections (2) pass subject to minor corrections, (3) pass subject to major corrections, (4) downgrade to MPhil with no amendments, (5) downgrade to MPhil subject to amendments, (6) immediate fail.
Almost all students who sit their viva pass it, with the most common outcome being ‘(2) – pass subject to minor corrections’.

What Is a PhD Viva?

A viva voce , more commonly referred to as ‘viva’, is an oral examination conducted at the end of your PhD and is essentially the final hurdle on the path to a doctorate. It is the period in which a student’s knowledge and work are evaluated by independent examiners.

In order to assess the student and their work around their research question, a viva sets out to determine:

you understand the ideas and theories that you have put forward,
you can answer questions about elements of your work that the examiners have questions about,
you understand the broader research in your field and how your work contributes to this,
you are aware of the limitations of your work and understand how it can be developed further,
your work makes an original contribution, is your own and has not been plagiarised.

Note: A viva is a compulsory procedure for all PhD students, with the only exception being when a PhD is obtained through publication as opposed to the conventional route of study.

Who Will Attend a Viva?

In the UK, at least two examiners must take part in all vivas. Although you could have more than two examiners, most will not in an attempt to facilitate a smoother questioning process.

One of the two examiners will be internal, i.e. from your university, and the other will be external, i.e. from another university. Regardless, both will be knowledgeable in your research field and have read your thesis beforehand.

In addition to your two examiners, two other people may be present. The first is a chairperson. This is an individual who will be responsible for monitoring the interview and for ensuring proper conduct is followed at all times. The need for an external chairperson will vary between universities, as one of the examiners can also take on this role. The second is your supervisor, whose attendance is decided upon by you in agreement with your examiners. If your supervisor attends, they are prohibited from asking questions or from influencing the outcome of the viva.

To avoid any misunderstandings, we have summarised the above in a table:

Note: In some countries, such as in the United States, a viva is known as a ‘PhD defense’ and is performed publicly in front of a panel or board of examiners and an open audience. In these situations, the student presents their work in the form of a lecture and then faces questions from the examiners and audience which almost acts as a critical appraisal.

How Long Does a Viva Last?

Since all universities have different guidelines , and since all PhDs are unique, there are no standard durations. Typically, however, the duration ranges from one to three hours, with most lasting approximately two hours.

Your examiners will also influence the duration of your viva as some will favour a lengthy discussion, while others may not. Usually, your university will consult your examiners in advance and notify you of the likely duration closer to the day of your viva.

What Happens During a Viva?

Regardless of the subject area, all PhD vivas follow the same examination process format as below.

Introductions

You will introduce yourselves to each other, with the internal examiner normally introducing the external examiner. If an external chairperson is present, they too are introduced; otherwise, this role will be assumed by one of the examiners.

Procedure Explained

After the introductions, the appointed chair will explain the viva process. Although it should already be known to everyone, it will be repeated to ensure the viva remains on track during the forthcoming discussion.

Warm-Up Questions

The examiners will then begin the questioning process. This usually starts with a few simple opening questions, such as asking you to summarise your PhD thesis and what motivated you to carry out the research project.

In-Depth Questions

The viva questions will then naturally increase in difficulty as the examiners go further into the details of your thesis. These may include questions such as “What was the most critical decision you made when determining your research methodology ?”, “Do your findings agree with the current published work?” and “How do your findings impact existing theories or literature? ”. In addition to asking open-ended questions, they will also ask specific questions about the methodology, results and analysis on which your thesis is based.

Closing the Viva

Once the examiners are satisfied that they have thoroughly evaluated your knowledge and thesis, they will invite you to ask any questions you may have, and then bring the oral examination to a close.

What Happens After the Viva?

Once your viva has officially ended, your examiners will ask you to leave the room so that they can discuss your performance. Once a mutual agreement has been reached, which can take anywhere from 10 minutes to an hour, you will be invited back inside and informed of your outcome.

PhD Viva Outcomes

There are six possible outcomes to a viva:

Immediate award of degree: A rare recommendation – congratulations, you are one of the few people who completely satisfied your examiners the first time around. You do not have to do anything further at this point.
Minor amendments required: The most common recommendation – you obtain a pass on the condition that you make a number of minor amendments to your thesis, such as clarifying certain points and correcting grammatical errors. The time you have to make these changes depends on the number of them, but is usually one to six months.
Major amendments required: A somewhat uncommon recommendation – you are requested to make major amendments to your thesis, ranging from further research to collecting more data or rewriting entire sections. Again, the time you have to complete this will depend on the number of changes required, but will usually be six months to one year. You will be awarded your degree once your amended thesis has been reviewed and accepted.
Immediate award of MPhil: An uncommon recommendation – your examiners believe your thesis does not meet the standard for a doctoral degree but meets the standard for an MPhil (Master of Philosophy), a lower Master’s degree.
Amendments required for MPhil: A rare recommendation – your examiners believe your thesis does not meet the standard for a doctoral degree, but with several amendments will meet the standard for an MPhil.
Immediate fail: A very rare recommendation – you are given an immediate fail without the ability to resubmit and without entitlement to an MPhil.

Finding a PhD has never been this easy – search for a PhD by keyword, location or academic area of interest.

What Is the Pass Rate for Vivas?

Based on an analysis of 26,076 PhD students who took their viva exam between 2006 and 2017, the PhD viva pass rate in the UK is 96%; of those who passed, about 80% were required to make minor amendments to their thesis. The reason for this high pass rate is that supervisors will only put their students forward for a viva once they confidently believe they are ready for it. As a result, most candidates who sit a viva are already well-versed in their PhD topic before they even start preparing for the exam.

How Do I Arrange a Viva?

Your viva will be arranged either by the examiners or by the chairperson. The viva will be arranged at least one to two months after you have submitted your thesis and will arrange a viva date and venue that is suitable for all participants.

Can I Choose My Examiners?

At most universities, you and your supervisor will choose the internal and external examiners yourselves. This is because the examiners must have extensive knowledge of the thesis topic in order to be able to examine you and, as the author of the thesis in question, who else could better determine who they might be than you and your supervisor. The internal examiner is usually quite easy to find given they will be from your institution, but the external examiner may end up being your second or third preference depending on availability.

Can I Take Notes Into a Viva?

A viva is about testing your competence, not your memory. As such, you are allowed to take notes and other supporting material in with you. However, keep in mind that your examiners will not be overly impressed if you constantly have to refer to your notes to answer each question. Because of this, many students prefer to take an annotated copy of their thesis, with important points already highlighted and key chapters marked with post-it notes.

In addition to an annotated copy of a thesis, some students also take:

a list of questions they would like to ask the examiners,
notes that were created during their preparation,
a list of minor corrections they have already identified from their viva prep work.

How Do I Prepare for a PhD Viva?

There are several ways to prepare for a PhD viva, one of the most effective being a mock viva voce examination . This allows you to familiarise yourself with the type of viva questions you will be asked and identify any weak areas you need to improve. They also give you the opportunity to practise without the pressure, giving you more time to think about your answers which will help to make sure that you know your thesis inside out. However, a mock viva exam is just one of many methods available to you – some of the other viva preparation methods can be found on our “ How to Prepare for a PhD Viva ” page.

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Viva Questions

Updated on
Jan 18, 2024

What are viva questions? A viva simply means a university examination during which students answer questions in speech and these questions are commonly based on a particular project or discipline. Viva questions are an important part of an academic program and often take place at the conclusion of a semester/year. Although viva questions can vary, they commonly focus on four aspects: “What the project is about?”, “What were the key findings or observations?”, “What was the process?” and “Why do the observations matter?”. However, in some cases, these questions can be more diverse. If you want to know how to tackle these PhD viva questions properly, then this blog is a must-read for you!

This Blog Includes:

1. summarize your project/thesis/research in 3 minutes, 2. what is the strength and weakness of your research, 3. what makes your thesis work original, 4. elaborate on how your findings relate to literature in your field, 5. tell me about yourself, 6. summarise your key findings, 7. highlight the strong and weak areas of your research, 8. what were the major motivations behind this research, 9. elucidate the process of evaluation, 10. what is the key focus of this research, 50 common viva questions, 25 phd viva questions , viva questions on research methodologies, analysis and research findings: viva questions, viva questions for physics, viva questions for chemistry, viva questions for biology, viva questions for higher education, tips and tricks to ace the viva, 10 most important viva questions with answers.

Whether you are a PhD or a school student, viva exams are equally tough for everyone. But don’t worry, we have a solution to calm you down! Here are 5 commonly asked questions with answers:

To answer this question correctly, you need to be well-versed in the entire project. Start with an answer by explaining why did you select the topic of your project/thesis/research and close your explanation by providing an optimum solution to the problem.

Carefully analyze the strength and weaknesses of your research and while answering, make sure you talk about your weaknesses also and not only your strengths.

While answering, keep in mind what was known before and what you have added as part of being awarded your PhD is to contribute novel knowledge.

Explain how your findings connect with the literature review of your project and what its contributions are in terms of the field of your research. Does it further expand the literature? Does it highlight some new observations? Does it add to the literature in this field? Answer these main questions.

Talk about yourself and your areas of interest. Focus on the areas you are extremely positive about. Talk about your past achievements and what brings you to this position. Keep it professional.

Must Read: How to Ace “Tell Me About Yourself” in College Interview?

For this common viva question, focus on what you observed and found through your research project, how it connects with your hypothesis as well as what concluded through this research.

Mention the strengths first and elaborate on how they connect with the key findings. Then, you can underline the weak areas and the factors that could have been transformed into strengths.

Focus on what inspired you to carry out this research, and cite certain instances which helped you select this topic as well as the field for your project.

Elaborate on how you evaluated the key findings in your research, the key factors involved, whether the evaluation process faced some obstacles, how it could have been better and what was the reason you choose a particular process of evaluation.

While answering this, keep a summarised version of your research in your mind and then talk about the area of the primary focus of research. In order to demonstrate that your research is viable, it is essential to identify some of the key questions that it addresses.

Mostly research-based viva questions are asked in the case of a doctoral thesis wherein the key aspect of the process is to identify the thought behind the development of the specific paper. It is done to determine the knowledge and originality of the researcher and to assess their further interest in the field.

Below are some of the most common viva questions.

Tell me about yourself .
Summarise your research/thesis in 3 minutes.
Tell us how your research contributes to knowledge discourse.
What are the practical applications of your research?
What is the strength and weakness of your research?
How does your research help solve the underlying problems?
Can you explain your thesis in a sentence?
How did you come up with the subject of your research/thesis?
What was the source of inspiration behind this thesis/research?
What is the key idea that is unexpendable to your thesis?
What contributions are you looking forward to making in this area of study?
What is the key focus of this research?
Where can we locate the originality in your paper?
What are the core areas of debate in this paper?
What research methodology have you applied to address this issue?
What were the alternative methods you could have used to address the subject matter of concern?
Why did you feel it necessary to spend your resources in this area of study?
What aids did you use to support your research?
Which pertinent research papers did you use in your research?
Can you name 3 remarkable research papers in this stream?
Explain the recent developments in this field.
How did you come up with these questions you have discussed in your paper?
Describe the necessary decisions taken in your process.
Elucidate the process of evaluation.
Ponder over the strong and weak aspects of your research.
What is the relevance of your research in the current scenario?
Where do you think your research can be practically applied?
Which aspects of your research are you looking forward to being published?
Give us some insights into the references in your thesis.
What have you achieved in the process of this PhD?
Elaborate on how your findings relate to literature in your field.
Highlight the strong and weak areas of your research.
What were the major motivations behind this research?
How would you propose future research as a follow-up to this project?
Who will be more interested in this research project?
How is your research project relevant to your fellow researchers?
What was the process behind the research questions you selected?
Name some alternatives to your chosen research methodology.
Which of your research observations are you most interested in/curious about?
Name some prominent achievements of your research.

A PhD viva is a final examination in which a candidate answers questions from an academic panel on their work and understanding of their chosen subject area. This is often used to determine whether the candidate has effectively proved that they have learned enough about their specialised study topic to produce original work.

During a PhD viva, the questions are frequently based on the original study proposal and any other written material that has already been provided. Read the top 25 PhD viva questions below:

What is the area in which you wish to be examined?
What have you done that merits a PhD?
Summarise your key findings.
What’s original about your work?
Which topics overlap with your area?
Where do current technologies fail such that you (could) make a contribution?
Who are your closest competitors?
Can you summarise your project in 2 lines?
How can this research help other students working in the same field?
Which of your findings is your personal favourite?
Is your research inspired by some incident in your life?
Why did you choose this method to conduct this research?
What motivated you to conduct this research?
What was the biggest challenge that came your way?
What were the alternatives to this methodology?
How would you evaluate your work?
Were you short of any resources while conducting this research?
Can you tell me about the strongest point of your research?
What is the weakest point of your research?
. How did you deal with the ethical implications of your work?
What original contribution has your thesis made to this field of study?
Whose work has most influenced yours?
What ethical considerations did you apply?
Did your study go as expected? If you had to start the thesis again, what would you do differently?
Now that you’ve completed your study, what did you enjoy about the process?

Preparing for an interview for the Statistician or Survey Specialist role? Then worry not! Here are the most important viva questions on research methodologies:

Under which circumstances are quantitative as well as qualitative research methods fruitful?
Could you distinguish between case-based and observational-based research methods in a few words?
What is a scientific study and what are its essential features?
You must have faced some ethical issues while conducting research. How did you handle it?
What method did you use to collect data?
Was there any other way in which you could have assimilated the data? If yes, then how?
What are the main achievements of your research?
What advice would you give to a research student entering this area?
What is the relevance of your work to other researchers?
How did your research questions emerge?

Subjective Questions for School

Be it for Chemistry or Biology practicals , from 10th standard onwards, students have to appear for vivas. The concerned viva questions pertain to the subject that the students have studied in the course of the entire year. The viva that one appears for at the senior secondary level is based on the experiments that the students perform to test their understanding of the research. Apart from those experiments, the students are also asked several questions to estimate their practical understanding of the key areas of study.

Viva questions for Physics are mainly based on concepts and topics from Physics textbooks. Here are the most common viva questions for Physics Class 11 and Class 12:

Viva Questions for Class 12 Physics

What is Ohm’s Law?
What do you mean by ‘interference’?
Define tangent law.
Name the type of motion shown by the Torsional pendulum.
What happens with resonance in the LCR circuit?
What do you understand by the order of the spectrum?
How is Wedge Film Experiment useful?
Define parallax and how it is removed.
How does the emission of light is carried out by LED?

Also Read: Physics Project for Class 12: Top 50 Ideas & Experiments

Viva Questions for Class 11 Physics

Name the units of the vernier scale.
What do you understand by Zero Error (Z.E)?
What are the two parts of the Screw Gauge?
Name one mechanical advantage of a Screw Gauge.
What is Focal Length?
What are the factors that impact surface tension?
Define the time period of a bar.
What is Simple Harmonic Motion (SHM)?

Viva questions for Chemistry are mainly based on concepts and topics from Chemistry textbooks. Here are the most common viva questions for Chemistry Class 11 and Class 12:

Viva Questions for Class 12 Chemistry

What is Valency?
What is the value of Avogadro’s number?
What is the monomer of Polyethylene?
What are polymers?
What is the IUPAC Name?
Differentiate between addition and condensation polymer
What is the oxidation and reduction reaction in the electrolytic process?
What is Titration?

Also Read: Chemistry Project for Class 12: Topics & Sample Projects

Viva Questions for Class 11 Chemistry

Define the term ‘crystallisation’
What is solubility?
Why is crystallization done?
What is Kipp’s waste?
What is a Saturated Solution?

PhD viva questions for Biology are mainly based on concepts and topics from Biology textbooks. Here are the most common viva questions for Biology Class 11 and Class 12:

Viva Questions for Class 12 Biology

What is litter?
What is the shape of a pollen grain
What is tectum?
What are pollutants
What is hummus
Define Mitosis
Why is Mitosis called Somatic Cell Division

Also Read: How to Ace Class 12th Biology Practical?

Viva Questions for Class 11 Biology

How many types of proteins are there
What are enzymes
What is nucleic acid?
Examples of high-protein food
Full form of DNA
Full form of RNA
What are Mendelian Laws
What is placentation?
What are monadelphous and diadelphous stamens?
What is the flower’s importance to the plant?
To which family china rose belongs?

Admission tutors at the postgraduate level conduct viva or interviews to establish whether graduates are committed to and prepared for studying the master’s or PhD level courses. These are less formal than a job interview , but you still need to take them seriously – your aspirations to pursue overseas education could depend on your performance.

Let’s say you come from a Mass Communication background and you’ve made a documentary on “ underprivileged sections of society” . Then you might be asked about the process of the development of the movie, how long did it take to gauge the key aspects of the film or the perspective behind the direction process.

Though the research you do in your PhD is a massive achievement, you need to be prepared for the exhaustive viva session with the experts. The PhD viva questions are a chance for students to discuss their work with professionals. Its formal purpose is to ensure that the student understands and can explain their thesis. It involves lots of stinging questions and conceptually complex debates. How can PhD scholars best prepare themselves? Let us take a look at the different tips for getting through your viva questions:

Calm down and breathe
Believe in yourself
Do something fun
Go in with a good attitude
Look presentable
Read your thesis
Know the rules
Make a list of your own corrections
Make plans to celebrate
Try to enjoy it

Must Read: How to Crack an Interview [20 Scientifically Proven Tips]

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The Savvy Scientist

Experiences of a London PhD student and beyond

Common PhD Viva Questions

It can be pretty difficult knowing how to prepare for your PhD viva. Having successfully defended my own STEM PhD remotely in the last year, I want to help you to prepare! What follows are some common PhD viva questions which your examiners may ask you. Plus some additional advice based off my own PhD viva experience.

For an intro to the PhD viva including the typical structure and potential outcomes please see my introductory post:

How to Defend a Thesis: An Introduction to the PhD Viva

How Much Do You Need to Prepare For A PhD Viva?

There is no hard and fast rule for how much you need to prepare. And unlike a written exam, there are of course no past-papers to practice on!

It may help ease your mind to think about what the purpose of a PhD viva is. Namely the purpose of the PhD viva (or defence) is to check that:

You did the work;
You understand the work;
The research is up to the standard for a PhD.

For more detail see my separate post here including Imperial’s PhD viva mark scheme.

In hindsight I probably didn’t spend as much time preparing for my viva as is normal. Though I did unexpectedly move house less than a week before !

Besides reading through my thesis once in the few days leading up to it, I didn’t spend much time thinking up answers to questions or “revising” certain topics which could come up. The viva went fine, but it wouldn’t have done me any harm to have been a little better prepared.

It certainly helped that I’d managed to schedule a viva which took place less than six weeks after I submitted the thesis so it was all very fresh in my mind. If you submitted your thesis months before your viva I’d suggest spending slightly more time refreshing your memory in preparation for questions you may get asked.

In summary, I think it’s useful for all PhD students to get an idea of some potential lines of questioning for their oral exam!

Update: Keen to get prepared for your viva? I’ve put together a set of viva preparation worksheets which are available in the resource library. Click the image below for free access!

Listed below are common PhD viva questions which I’ve roughly grouped together. We’ll start with some higher-level questions about your PhD which should be quite easy and friendly, then progress through to some more technical (and potentially unfriendly!) questions.

It is worth noting that many examiners will ask for a short presentation at the start of the viva and this could eliminate some potential questions. In this list I’ve left in the main questions I’d expect for this presentation to address, such as what future work you’d recommend.

Very few of the questions are ones you’re guaranteed to get asked, but I can assure you that you’ll get asked at least some of them!

General PhD Viva Questions – usually friendly!

These ones are simply inquisitive and you don’t really have to worry about getting caught out. The examiners are simply interested in the work and want an insight from someone who has spent the last few years working on it.

What is the most important finding from your PhD work?
What was the motivation behind this research?
Who is your research relevant to?
Which aspects of your work are you publishing? Follow on: and where?
What future work would you recommend?
What are the limitations of your research?
Which aspect of your work surprised you the most?
What are the potential applications of your PhD research?

Method-Specific Questions – mostly friendly!

These questions dive a little deeper but even so shouldn’t be too much of a cause for concern. They come down to your own judgement and as long as you justify your decicisions you’ll be fine in answering them.

Why did you do [things] a certain way?
What were the alternatives to [this certain method]?
Why did you test [that specific number] of samples?
What effect did you think changing [something in your method] would have?
What do you think you could have gained by using [another approach]?
Why did you not use [another technique]?
How did you deal with the ethical implications of your work?

Results & Analysis-Specific Questions – mostly friendly!

In a similar manner to the previous section about your methodology, you’ll often get some questions targeting your analysis and presentation of results.

What is this graphical figure illustrating?
Why was [this analytical technique] appropriate? Follow on: why did you use [this other technique]?
Which of your results do you find the most interesting?
How do you know that your findings are correct?

Literature Questions – may be less friendly!

This is where things may get tough if your examiners want to try and test your limits. Even so, they’ll still likely cut you some slack. If you have 100+ references it’s very possible that under the nerves of your exam you can’t remember specifics for each and every reference. Just don’t make things up. They’d rather you were honest than trying to deceive them.

Please explain the key findings of reference number [X]
Which papers would you say had the biggest impact on your work?
What do you think are the biggest differences between [these two previous studies]?
What have been the biggest advancements in the field over the last 10 years?
Why did you not reference [this other study]?
How does your work compliment the existing literature?
What do you think the next big advancements will be in the field?

Highly Technical Questions – potentially very unfriendly!

These are the ones I was a bit scared of getting, but it is a PhD viva after all. Of course it should be expected that you have a solid understanding of the principles that underpin your project. Even so it can be unnerving thinking of how large the range of potential questions like this can be!

Unlike at a conference or in other settings where you may be able to brush over things you’re not 100% comfortable with, there is no hiding when your examiners need to test your knowledge. Particularly when they have hours of time at their disposal to do so!

Explain how [a technique] works. This could be anything from sample preparation, equipment and analysis through to statistics. I’ve known people to get asked to explain things like a statistical t-test from first principles, with follow-on questions being asked with every answer to drill deeper.
Explain [some fundamental concept, phenomenon or principle]. Just like the last question but applied to basic-sciences. I’ve known students to get asked questions such as: explain energy (to a mechanical engineer) and explain toughness (to a materials scientist). I’m sure we can all explain these concepts to a certain level but my concern was whether or not I could explain them at a deep enough level to satisfy the examiner.

With both of these types of questions there ultimately comes a point where you (or the internal examiner ) can push back and say that answering that question was not the focus of your PhD!

What Questions I Got Asked at My Own PhD Viva

I was really surprised at my own viva how few questions I actually got in general.

The viva lasted a whopping five hours (excluding a quick break) and yet almost all of the time was spent discussing improvements to my viva to help with publishing papers.

Even so, I could have done with putting a bit more time into preparing for potential questions: which was my motivation to help you by putting together this post!

The few questions I had included:

If you were to do the project again would you do anything differently?
Clarification of what I meant by certain sentences in my thesis .

You may be wondering if I avoided getting asked deeper questions by the examiners because I already had a relationship with them so they were satisfied with my knowledge and capabilities. But I didn’t really know the examiners! I’d met my external examiner at a conference and he had seen me present but I’d never actually met my internal examiner before.

Instead, what I think did go a long way to helping was having already had something published in a respected journal.

Nevertheless, in a way I actually walked away a little unsatisfied by the lack of questioning at my PhD viva.

It was great to get so much feedback on my thesis which has already helped to get two more papers published since the viva, but I felt like it would have been nice to feel a bit more taxed and known that I could hold my own in the exam if it came down to it.

Now looking back on the viva 10 months later, I’m just happy to have the PhD done!

My Tips for Answering Common PhD Viva Questions

Keep calm and take your time before answering . There is no rush to answer questions. Having a sip of a drink may help provide a pause for thinking up an answer.
Tell the truth. If you don’t know something, just say so! It’s likely the examiners will quickly be able to tell that you don’t know what you’re talking about. Plus, there is the risk that they’ll ask deeper follow-on questions which could unravel any lies.
Try to enjoy the experience. Think of it as a discussion, rather than a police investigation. Your examiners are interested in the work and want to hear more about it!

If you’d like personalised help with preparing for your PhD viva I am now starting to offer a small number of one-to-one sessions. Please contact me to find out more or click here to book a call.

I hope these common PhD viva questions can help you to prepare for your own viva.

If there are other aspects of the examination you want covered, just let me know.

I have many more upcoming PhD (and beyond!) posts . I f you want to get notified about them you can subscribe here:

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Amplifying The Voices Of PhD Students

Viva Question Repository

This is a repository of questions that were asked at Vivas of students, just like you.

Look up what questions you can expect in your Viva! Don’t get caught off-guard.

(Pro tip: Want to sort by more than one heading? Hold shift and click the headings you want to sort by.)

Did you have your Viva already?

Be a lamb, use the form below to add some of the questions you had and help other Ph.D. students out! 🙂

Add your questions even if they’re already in the list above because the more often a question pops up in the list above, the more PhD students will know which questions are more likely to be asked and which are not!

How To Us The Repository:

Use it to prepare for your Viva/Defense.

There are a bunch of various categories that you can search through.

You can use the search bar, or simply click on one of the category’s headers to order the rows A-Z or Z-A. You can sort by more than one column by holding shift while clicking the desired headers.

There are bound to be duplicate questions in the Repository, which tells you a little about how likely that type of question is to come up.

All the best!

How to prepare for your viva: 8 useful tips

Agata frymus.

21 June 2018

1: Read your thesis

No matter how many times you have done it before, reading your thesis a week or two before the viva is always a good idea. Although I have proofread my thesis several times before the submission, this time my focus shifted : rather than looking for spelling mistakes, typos and missing references, I concentrated on the quality of my argument. What are the research questions posed in each chapter? What are the main findings? And, most importantly, how could this work be improved?

To make sure I actively engaged with the ideas developed by the thesis, I highlighted some parts of the texts and made notes. I also produced a rather short document in which I summarised each of my eight chapters (as well as the introduction and conclusion) according to the following criteria:

Key arguments and findings
Methodology and scholarship used

Thinking about my work in those fairly broad terms helped me to understand how to explain it to those who might not be familiar with the specificity of my subject. Additionally, it enabled me to reflect on the potential shortcomings of the research I conducted, which proved instructive during the viva discussion. Although this might sound like a laborious process, let me assure you that it was not. I have spent about a week (if not less) reading the thesis and making notes, and it wasn’t even the only thing I was occupied by (which brings me to my next point).

Part of the table/ document I produced as I was re-reading my thesis

2: Don’t over prepare

How long is one supposed to spend on viva preparation? Given the importance of the examination, you might be tempted to think that the longer the better, right? Well…not exactly. After all, everyone I talked to (see point 4) admitted they regretted spending too much time on the prep. Even though I have heard stories of PhDs devoting a month – or more – solely to viva-related study, I decided to be sensible and spend no longer than two weeks on preparations. Two weeks in which my mind won’t be occupied by anything else but the viva. When I shared my plan with my supervisor, he deemed it extravagant. ‘How long do you need to read something?’, he asked, and I’m glad he did. The thing is, as a PhD student you have spent at least three years researching your topic. At this point, you are the expert in your chosen field; it is probably fair to assume that you do not need weeks and weeks of additional study. You have already done the groundwork. Be confident in your knowledge.

3: Think about the potential questions

One of the best things you can do to maximize your chances of a confident viva performance is to consider the potential viva questions and the way in which you could approach them. There are plenty of websites that provide you with sample discussion points that are likely to be raised by your examiners and most of them are broad enough to be applicable to your thesis, regardless of the specificity of your topic. I used these and these as starting points. Considering the questions in advance will add to your confidence as you will be less likely to be taken by surprise. If you do, however, end up being mildly shocked by the question asked by the examiner, do not panic. It is perfectly fine to take some time to gather your thoughts, or even write main points down on a piece of paper if the question is more complex.

Some of the questions I have been asked at the beginning of my viva included:

Why have you chosen these particular stars as your case studies? What sparked your interest in them?
How did you go about conducting your research?
What are the differences between researching print copies of fan magazines and the online/ digitised versions?

Most of the questions, however, related to specific paragraphs and passages from my thesis. The worksheet I produced as part of the prep process (see point 1), enabled me to anticipate criticism and answer such questions without feeling like I’m losing my ground.

You don’t necessarily need to write your answers down either: one of my friends told me they went on long walks during which their pondered the potential discussion points and subsequent responses.

4: Talk to people who have passed their viva

The views expressed by those who have successfully passed their viva seemed to share a similar tone: it’s nothing to worry about, it’s nowhere as scary as you think it will be, it will be fine, and so on. This, in itself, is quite reassuring. Talking to friends and colleagues about their experiences , however, might give you some interesting insights too. I really dreaded questions relating to the critical choices I made in the process of compiling my thesis: why have I chosen this star/ fan magazine, and not a different one? How should I explain something that was, in many respects, not only an analytical, but also a personal choice? What I understood as a result of those conversations was that simple, honest answers (‘these specific fan magazines are easily available in the digital form and are searchable’/ ‘Pola Negri has something of a cult status in Poland, where I come from’) are often the best ones.

5: Arrange a mock viva

It’s a truism, I know, but confidence is key. Even if you have conducted high quality research, your points will not come across particularly strong if you mumble or are not able to express yourself clearly. Before presenting any paper or a lecture I always, always make sure I practice my presentation in front of friends, family members or anyone who is willing to listen. This gives me a better understanding of how I will behave under pressure , because a certain amount of stress is always there, no matter if I present in front of my boyfriend or an academic audience of 30.

Therefore, I think it is crucial to run a mock viva as part of one’s preparation. It will not always increase your confidence at the actual thing, but it will also give you some useful feedback regarding your answers and performance. For example, my mock viva – which I organised with a fellow PhD student and my supervisor as examiners – made me realise that I need to be more explicit when talking about my methodology, starting with more general terms. Although I have explained the importance of post-colonialism, critical race studies and feminism in structuring my approach, I failed to mention gender and film studies, which are much broader and probably more important categories. Secondly, the feedback I received as the result of this exercise boosted my confidence. Despite the fact my heart was racing/ my hands were shaking/ I felt very anxious, neither of my mock examiners noticed any of it. At the end, the mock examination turned out to be much more stressful than the real one!

Alternatively, you can arrange a mock viva with friends, or even video record your answers on your phone. Whilst watching yourself might sound painful, it could show you that you never come across as bad as you think you do. It’s scientifically proven.

6: Know your examiners

I find interviews/ examinations/ any form of discussion less threatening if I have met the person doing the questioning. This might not work as effectively for everyone, but somehow meeting one of the examiners in person beforehand – even if that meant simply knowing their tone of voice and general demeanour – made me feel much more confident in myself. If you feel the same way, I would suggest you try to meet your examiners in an informal setting. They will probably be fine with a coffee sometime before the viva, as long as you explain your reasoning and stay away from discussing your PhD and the viva itself.

My viva took place on Tuesday. I spent the last couple of days leading too it doing absolutely nothing in terms of preparation, assuming, rather correctly, that it will achieve little more than stress me out. I went to see a friend over the weekend (we made vegan burritos) and stayed at another friends’ house the night before, watching First Dates. I know that people deal with stress differently, but for me, preparing earlier and then taking my mind off the viva was the best thing I could do. Have a bath/ go on a hike/ exercise the night before; whatever works.

Source: phdcomics.com

8: And finally… Enjoy it!

The viva is a rare opportunity to discuss your research with two people who not only have read your thesis in its entirety, but who are also likely to be specialists in your field . Make the most of the opportunity it offers, and enjoy yourself as you do; after all, you produced a valuable piece of work and there is no reason why you should not feel happy about it.

Agata Frymus is a Marie Skłodowska Curie post-doctoral fellow at University of Ghent, Belgium, where she works on black cinemagoing in the 1920s and 1930s. Her main research interests include silent film, classical Hollywood and the history of gender and race representations in American culture. Agata’s work has been published in Celebrity Studies Journal , Early Popular Visual Culture and the Historical Journal of Radio, Film and Television .

Disclaimer: The IAMHIST Blog is a platform that offers individual scholars the opportunity to present their work and thoughts. They alone are responsible for the content, which does not represent the view of the IAMHIST council or other IAMHIST members.

What a timely email to land in my in-box: mine is on the 4th July!

Remember that your examiners will be wanting you to showcase your research in best possible light. Remember that you are the world’s expert in your thesis topic, and that the viva is a rare–maybe a once-in-a-lifetime–opportunity to discuss your work in the greatest depth with experts whom you respect. Remember that you have lived with and love your topic and will naturally be enthusiastic as well as highly knowledgeable about it.

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Preparing For Your Dissertation Defense

13 Key Questions To Expect In The Viva Voce

By: Derek Jansen (MBA) & David Phair (PhD) . Reviewed By: Dr Eunice Rautenbach | June 2021

Preparing for your dissertation or thesis defense (also called a “viva voce”) is a formidable task . All your hard work over the years leads you to this one point, and you’ll need to defend yourself against some of the most experienced researchers you’ve encountered so far.

It’s natural to feel a little nervous.

In this post, we’ll cover some of the most important questions you should be able to answer in your viva voce, whether it’s for a Masters or PhD degree. Naturally, they might not arise in exactly the same form (some may not come up at all), but if you can answer these questions well, it means you’re in a good position to tackle your oral defense.

Viva Voce Prep: 13 Essential Questions

What is your study about and why did you choose to research this in particular?
How did your research questions evolve during the research process?
How did you decide on which sources to include in your literature review?
How did you design your study and why did you take this approach?
How generalisable and valid are the findings?
What were the main shortcomings and limitations created by your research design?
How did your findings relate to the existing literature?
What were your key findings in relation to the research questions?
Were there any findings that surprised you?
What biases may exist in your research?
How can your findings be put into practice?
How has your research contributed to current thinking in the field?
If you could redo your research, how would you alter your approach?

#1: What is your study about and why did you choose to research this in particular?

This question, a classic party starter, is pretty straightforward.

What the dissertation or thesis committee is assessing here is your ability to clearly articulate your research aims, objectives and research questions in a concise manner. Concise is the keyword here – you need to clearly explain your research topic without rambling on for a half-hour. Don’t feel the need to go into the weeds here – you’ll have many opportunities to unpack the details later on.

In the second half of the question, they’re looking for a brief explanation of the justification of your research. In other words, why was this particular set of research aims, objectives and questions worth addressing? To address this question well in your oral defense, you need to make it clear what gap existed within the research and why that gap was worth filling.

#2: How did your research questions evolve during the research process?

Good research generally follows a long and winding path . It’s seldom a straight line (unless you got really lucky). What they’re assessing here is your ability to follow that path and let the research process unfold.

Specifically, they’ll want to hear about the impact that the literature review process had on you in terms of shaping the research aims, objectives and research questions . For example, you may have started with a certain set of aims, but then as you immersed yourself in the literature, you may have changed direction. Similarly, your initial fieldwork findings may have turned out some unexpected data that drove you to adjust or expand on your initial research questions.

Long story short – a good defense involves clearly describing your research journey , including all the twists and turns. Adjusting your direction based on findings in the literature or the fieldwork shows that you’re responsive , which is essential for high-quality research.

You will need to explain the impact of your literature review in the defense

#3: How did you decide on which sources to include in your literature review?

A comprehensive literature review is the foundation of any high-quality piece of research. With this question, your dissertation or thesis committee are trying to assess which quality criteria and approach you used to select the sources for your literature review.

Typically, good research draws on both the seminal work in the respective field and more recent sources . In other words, a combination of the older landmark studies and pivotal work, along with up-to-date sources that build on to those older studies. This combination ensures that the study has a rock-solid foundation but is not out of date.

So, make sure that your study draws on a mix of both the “classics” and new kids on the block, and take note of any major evolutions in the literature that you can use as an example when asked this question in your viva voce.

#4: How did you design your study and why did you take this approach?

This is a classic methodological question that you can almost certainly expect in some or other shape.

What they’re looking for here is a clear articulation of the research design and methodology, as well as a strong justification of each choice . So, you need to be able to walk through each methodological choice and clearly explain both what you did and why you did it. The why is particularly important – you need to be able to justify each choice you made by clearly linking your design back to your research aims, objectives and research questions, while also taking into account practical constraints.

To ensure you cover every base, check out our research methodology vlog post , as well as our post covering the Research Onion .

You have to justify every choice in your dissertation defence

#5: How generalizable and valid are the findings?

This question is aimed at specifically digging into your understanding of the sample and how that relates to the population, as well as potential validity issues in your methodology.

To answer question this well, you’ll need to critically assess your sample and findings and consider if they truly apply to the entire population, as well as whether they assessed what they set out to. Note that there are two components here – generalizability and validity . Generalizability is about how well the sample represents the population. Validity is about how accurately you’ve measured what you intended to measure .

To ace this part of your dissertation defense, make sure that you’re very familiar with the concepts of generalizability , validity and reliability , and how these apply to your research. Remember, you don’t need to achieve perfection – you just need to be aware of the strengths and weaknesses of your research (and how the weaknesses could be improved upon).

Need a helping hand?

#6: What were the main shortcomings and limitations created by your research design?

This question picks up where the last one left off.

As I mentioned, it’s perfectly natural that your research will have shortcomings and limitations as a result of your chosen design and methodology. No piece of research is flawless. Therefore, a good dissertation defense is not about arguing that your work is perfect, but rather it’s about clearly articulating the strengths and weaknesses of your approach.

To address this question well, you need to think critically about all of the potential weaknesses your design may have, as well as potential responses to these (which could be adopted in future research) to ensure you’re well prepared for this question. For a list of common methodological limitations, check out our video about research limitations here .

#7: How did your findings relate to the existing literature?

This common dissertation defense question links directly to your discussion chapter , where you would have presented and discussed the findings in relation to your literature review.

What your dissertation or thesis committee is assessing here is your ability to compare your study’s findings to the findings of existing research . Specifically, you need to discuss which findings aligned with existing research and which findings did not. For those findings that contrasted against existing research, you should also explain what you believe to be the reasons for this.

As with many questions in a viva voce, it’s both the what and the why that matter here. So, you need to think deeply about what the underlying reasons may be for both the similarities and differences between your findings and those of similar studies.

Your dissertation defense needs to compare findings

#8: What were your key findings in relation to the research questions?

This question is similar to the last one in that it too focuses on your research findings. However, here the focus is specifically on the findings that directly relate to your research questions (as opposed to findings in general).

So, a good way to prepare for this question is to step back and revisit your research questions . Ask yourself the following:

What exactly were you asking in those questions, and what did your research uncover concerning them?
Which questions were well answered by your study and which ones were lacking?
Why were they lacking and what more could be done to address this in future research?

Conquering this part dissertation defense requires that you focus squarely on the research questions. Your study will have provided many findings (hopefully!), and not all of these will link directly to the research questions. Therefore, you need to clear your mind of all of the fascinating side paths your study may have lead you down and regain a clear focus on the research questions .

#9: Were there any findings that surprised you?

This question is two-pronged.

First, you should discuss the surprising findings that were directly related to the original research questions . Going into your research, you likely had some expectations in terms of what you would find, so this is your opportunity to discuss the outcomes that emerged as contrary to what you initially expected. You’ll also want to think about what the reasons for these contrasts may be.

Second, you should discuss the findings that weren’t directly related to the research questions, but that emerged from the data set . You may have a few or you may have none – although generally there are a handful of interesting musings that you can glean from the data set. Again, make sure you can articulate why you find these interesting and what it means for future research in the area.

What the committee is looking for in this type of question is your ability to interpret the findings holistically and comprehensively , and to respond to unexpected data. So, take the time to zoom out and reflect on your findings thoroughly.

#10: What biases may exist in your research?

Biases… we all have them.

For this question, you’ll need to think about potential biases in your research , in the data itself but also in your interpretation of the data. With this question, your committee is assessing whether you have considered your own potential biases and the biases inherent in your analysis approach (i.e. your methodology). So, think carefully about these research biases and be ready to explain how these may exist in your study.

In an oral defense, this question is often followed up with a question on how the biases were mitigated or could be mitigated in future research. So, give some thought not just to what biases may exist, but also the mitigation measures (in your own study and for future research).

#11: How can your findings be put into practice?

Another classic question in the typical viva voce.

With this question, your committee is assessing your ability to bring your findings back down to earth and demonstrate their practical value and application. Importantly, this question is not about the contribution to academia or the overall field of research (we’ll get to that next) – it is specifically asking about how this newly created knowledge can be used in the real world.

Naturally, the actionability of your findings will vary depending on the nature of your research topic. Some studies will produce many action points and some won’t. If you’re researching marketing strategies within an industry, for example, you should be able to make some very specific recommendations for marketing practitioners in that industry.

To help you flesh out points for this question, look back at your original justification for the research (i.e. in your introduction and literature review chapters). What were the driving forces that led you to research your specific topic? That justification should help you identify ways in which your findings can be put into practice.

#12: How has your research contributed to current thinking in the field?

While the previous question was aimed at practical contribution, this question is aimed at theoretical contribution . In other words, what is the significance of your study within the current body of research? How does it fit into the existing research and what does it add to it?

This question is often asked by a field specialist and is used to assess whether you’re able to place your findings into the research field to critically convey what your research contributed. This argument needs to be well justified – in other words, you can’t just discuss what your research contributed, you need to also back each proposition up with a strong why .

To answer this question well, you need to humbly consider the quality and impact of your work and to be realistic in your response. You don’t want to come across as arrogant (“my work is groundbreaking”), nor do you want to undersell the impact of your work. So, it’s important to strike the right balance between realistic and pessimistic .

This question also opens the door to questions about potential future research . So, think about what future research opportunities your study has created and which of these you feel are of the highest priority.

Discuss your contribution in your thesis defence

#13: If you could redo your research, how would you alter your approach?

This question is often used to wrap up a viva voce as it brings the discussion full circle.

Here, your committee is again assessing your ability to clearly identify and articulate the limitations and shortcomings of your research, both in terms of research design and topic focus . Perhaps, in hindsight, it would have been better to use a different analysis method or data set. Perhaps the research questions should have leaned in a slightly different direction. And so on.

This question intends to assess whether you’re able to look at your work critically , assess where the weaknesses are and make recommendations for the future. This question often sets apart those who did the research purely because it was required, from those that genuinely engaged with their research. So, don’t hold back here – reflect on your entire research journey ask yourself how you’d do things differently if you were starting with a blank canvas today.

Recap: The 13 Key Dissertation Defense Questions

To recap, here are the 13 questions you need to be ready for to ace your dissertation or thesis oral defense:

As I mentioned, this list of dissertation defense questions is certainly not exhaustive – don’t assume that we’ve covered every possible question here. However, these questions are quite likely to come up in some shape or form in a typical dissertation or thesis defense, whether it’s for a Master’s degree, PhD or any other research degree. So, you should take the time to make sure you can answer them well.

If you need assistance preparing for your dissertation defense or viva voce, get in touch with us to discuss 1-on-1 coaching. We can critically review your research and identify potential issues and responses, as well as undertake a mock oral defense to prepare you for the pressures and stresses on the day.

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12 Comments

Very interesting

Interesting. I appreciate!

Really appreciating

My field is International Trade

Interesting

This is a full course on defence. I was fabulously enlightened and I gained enough confidence for my upcoming Masters Defence.

There are many lessons to learn and the simplicity in presentationmakes thee reader say “YesI can”

This is so helping… it has Enlightened me on how to answer specific questions. I pray to make it through for my upcoming defense

Lovely to hear that 🙂

Really educative and beneficial

Interesting. On-point and elaborate. And comforting too! Thanks.

Thank you very much for the enlightening me, be blessed

Thankyou so much. I am planning to defend my thesis soon and I found this very useful

Very interesting and useful to all masters and PhD students

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How to structure your viva presentation (with examples)

Most PhD vivas and PhD defences start with a short presentation by the candidate. The structure of these presentations is very important! There are several factors and approaches to consider when developing your viva presentation structure.

Factors to consider when developing a viva presentation structure

Structuring your viva presentation traditionally, structuring your viva presentation around key findings, structuring your viva presentation around key arguments, structuring your viva presentation around case studies, final thoughts on viva presentation structures.

A PhD viva or PhD defence is often one of the last steps that PhD students have to pass before receiving a doctorate. The viva or defence usually starts with a short presentation of the PhD candidate on the PhD thesis.

Presenting a whole PhD in a short amount of time is very challenging. After all, a PhD is often the result of several years of work!

It is simply impossible to include everything in a viva presentation.

Therefore, tough choices have to be made in terms of what to include, what to highlight, and what to exclude.

The structure of a viva presentation plays a crucial role in bringing across the key messages of your PhD.

Therefore, there are several factors to consider when developing a viva presentation structure:

Available presentation time : Viva presentations usually last between 10 and 20 minutes, but every university has different regulations. Developing a structure for a viva presentation that lasts 10 minutes is different from developing one for a presentation that lasts 20 minutes or more. Thus, find out how much time you are allowed to present!
The key contribution of your thesis: The structure of a viva presentation should reflect the content and key messages of the PhD thesis. For instance, if you have written a very theoretical PhD thesis, it makes no sense to structure your whole presentation around your data collection and analysis. Make sure that the viva presentation structure is in line with your main messages.
University standards: It is recommended to discuss your ideas and plans for your viva presentation structure with others, as each university may have may be different (and even unspoken) rules and standards. Ask your supervisors about their preferred viva presentation structure. And talk to your peers who defend their theses before you.
Clear storyline : Every presentation should have a logical structure which allows the audience to follow a crystal-clear storyline. This is also true for viva presentations. Thus, clarify your storyline and develop a presentation structure that supports it.

A very traditional viva presentation structure simply follows the structure of the PhD thesis.

This means that the viva presentation covers all parts of the thesis, including an introduction, the literature review, the methodology, results, conclusions, etcetera.

Example of a traditional viva presentation structure

The advantage of this rather traditional format is that it provides information on each thesis chapter. Furthermore, it is relatively easy to prepare.

The disadvantage of this traditional format is that it is very challenging to fit all the information in a – let’s say – 10-minute presentation.

Furthermore, it can result in a presentation that is quite boring for the examiners, who have read the thesis in preparation for the viva.

One interesting way is to structure a viva presentation around the key findings of the PhD research.

For instance, you can select your three main findings which you each connect to the existing literature, your unique research approach and your (new) empirical insights.

Example of a viva presentation structure around key findings

A viva presentation structure around key findings emphasises the unique contribution of a PhD thesis, particularly in empirical terms.

A challenge of this structure, however, is to narrow down the presentation to a handful of key findings.

Furthermore, it might be tricky to find enough time during the presentation to discuss your theoretical framework and embed your discussion in the existing literature when addressing complex issues.

A viva presentation structured around key arguments is very similar to one that is structured around key findings. However, while key findings place more emphasis on the empirical data, key arguments operate at a higher level:

Arguments are sets of reasons supporting an idea, which – in academia – often integrate theoretical and empirical insights.

Example of a viva presentation structure around key arguments

So, for example, your key argument 1 is your stance on an issue, combining your theoretical and empirical understanding of it. You use the existing theory to understand your empirical data, and your empirical data analysis to develop your theoretical understanding.

A viva presentation structure around key arguments is probably the most difficult viva presentation structure to choose.

However, if it is well done, it is probably the most academically strong and advanced way of defending your PhD.

Another common way to structure a viva presentation is around case studies or study contexts.

This structure is only applicable when the PhD thesis includes a comparative (case study) analysis, which is quite common in the social sciences and humanities.

A presentation can, for instance, first discuss the theoretical framework and research approach, then present Case 1, and then Case 2 or more if applicable.

Example of a viva presentation structure around case studies

A viva presentation structure around case studies can be easy to follow for the audience, and shed light on the similarities and differences of cases.

However, as always, you need to reflect on whether the structure supports your key message. If your key message does not centre around similarities and/or differences in cases, this is not the structure for you!

Every PhD thesis is unique, and therefore also every viva presentation structure should be unique.

The key to a good viva presentation is to choose a structure which reflects the key points of your PhD thesis that you want to convey to the examiners.

The example viva presentation structures discussed here intend to showcase variety and possibilities and to provide inspiration.

Never just copy a viva presentation structure that worked for others .

Always think about what fits best to your thesis, asking yourself the following questions:

What is the main message of my PhD that I want to share during my viva?
How do I develop a crystal clear storyline to bring this main message across?
How can I structure my viva presentation to support and facilitate this storyline?

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Defending your doctoral thesis: the PhD viva

Format for defending a doctoral thesis.

Every institution will have specific regulations for the thesis defence. In some countries or institutions, the convention is for thesis defences to be public events where you will give a lecture explaining your research, followed by a discussion with a panel of examiners (opponents). Both your examiners and the audience are able to ask questions.

In other countries, including the UK, the oral examination is usually conducted behind closed doors by at least two examiners, usually with at least one being from another institution (external examiner) and an expert in your topic of research. In the UK the supervisor does not participate in the viva, but may be allowed to observe. Sometimes someone from your own institution is appointed as an independent chair. Although it is now becoming more common for the candidate to have an opportunity to give a public lecture in UK institutions, this does not form part of the examination and may or may not be attended by the examiners.

Viva preparation

Take the preparation for your viva seriously and devote a substantial amount of time to it. The viva preparation checklist may be useful to help you prepare.

Your institution may offer courses on viva preparation and there may be opportunities to organise a practice viva. Take advantage of these opportunities: they can be extremely valuable experiences.

Things you may wish to take with you

your thesis – mildly annotated if you wish
a list of questions that you might be asked and your planned responses
any questions that you want to ask your examiners
additional notes which you have made during your revision
list of minor corrections that you have come across during your revision.

During the viva

Your study will have strengths and weaknesses: it is essential that you are prepared to discuss both. You could think of any weaknesses as an opportunity to demonstrate your skill at critical appraisal. Examiners will seek to find and discuss weaknesses in all theses. Do not interpret criticism as indication of a possible negative outcome.

Examiners have different personalities, styles and levels of experience. Sometimes a candidate may feel that a challenge is made in a confrontational way. Experienced, effective examiners will not be inappropriately confrontational, but some will. Do not take offence. A relaxed, thoughtful, and non-confrontational response from you will help re-balance the discussion. Having an independent chair can help maintain a constructive environment.

Useful tips for during your viva:

Ask for clarification of ambiguous questions or ask for the question to be repeated if necessary
Take time to think before answering
Be prepared to ask questions and enter into a dialogue with your examiners
Be prepared to discuss your research in context of other work done in your field
Be ready to admit if you don't know the answer to a question
Be prepared to express opinions of your own

You are not expected to have perfect recall of your thesis and everything that you have read and done. If you get flustered, or need to refer to notes your examiners will understand. They have been in your situation themselves!

After your viva

There are several possible outcomes of a thesis defence. Most commonly, your examiners will recommend to your institution that you are awarded your degree subject to minor corrections, although in some instances they might ask for more substantial work.

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100 Machine Learning PhD viva Questions

100 machine learning phd viva questions: a comprehensive guide for defending your thesis.

Are you preparing for your Machine Learning PhD viva and feeling overwhelmed by the thought of the questions you might be asked? You’re not alone. The viva, or oral examination, is a crucial part of the PhD process, and it can be challenging to know how to prepare for it.

Fortunately, we’ve got you covered. In this article, we’ve compiled a list of 100 Machine Learning PhD viva questions that are likely to come up during your examination. By reviewing these questions and preparing thoughtful answers, you can boost your confidence and improve your chances of success.

What is your research topic, and what motivated you to pursue it?
What are the key research questions you aimed to answer in your PhD project?
What is the main contribution of your research to the field of Machine Learning?
Can you explain the technical approach you used to tackle your research problem?
What are the limitations of your research, and how did you address them?
What are the potential applications of your research in industry or academia?
How does your work fit into the broader context of the Machine Learning field?
What were the key challenges you faced during your research, and how did you overcome them?
Can you explain the methodology you used to collect and analyze your data?
What are the key insights you gained from your research , and how do they contribute to the field?
What are the main strengths and weaknesses of the Machine Learning methods you used in your research?
Can you explain the differences between supervised and unsupervised learning, and when to use each method?
What are the key steps in building a successful Machine Learning model?
What are the advantages and disadvantages of using deep learning models?
How do you handle overfitting in your models, and what techniques do you use to prevent it?
What is regularization, and how does it help prevent overfitting?
How do you handle missing data in your Machine Learning models?
What is cross-validation, and how does it help evaluate the performance of your models?
Can you explain the difference between precision and recall, and why they are important metrics in Machine Learning?
What is the curse of dimensionality, and how does it affect the performance of Machine Learning models?
Can you explain the difference between a generative and a discriminative model?
What are the advantages and disadvantages of using decision trees for Machine Learning?
Can you explain the difference between gradient descent and stochastic gradient descent?
What is backpropagation, and how does it work in training neural networks?
What are convolutional neural networks, and how are they used in computer vision?
Can you explain the difference between a convolutional layer and a pooling layer in a CNN?
What are recurrent neural networks, and how are they used in natural language processing?
Can you explain the difference between a LSTM and a GRU?
What are autoencoders, and how are they used in unsupervised learning?
What is transfer learning, and how can it be used to improve the performance of Machine Learning models?
What are adversarial attacks, and how do they affect the robustness of Machine Learning models?
What is reinforcement learning, and how does it differ from supervised and unsupervised learning?
Can you explain the difference between on-policy and off-policy learning in reinforcement learning?
What is Q-learning, and how does it work in reinforcement learning?
What are the challenges in scaling Machine Learning models, and how can they be addressed?
How do you evaluate the performance of a Machine Learning model, and what metrics do you use?
Can you explain the difference between accuracy and F1 score, and when to use each metric?
How do you interpret the results of a confusion matrix, and what insights can you gain from it?
What are the different techniques for feature selection, and how do you decide which one to use?
Can you explain the difference between feature extraction and feature selection, and when to use each technique?
What are the different types of clustering algorithms, and how do they differ from each other?
Can you explain the difference between K-means clustering and hierarchical clustering?
What are the challenges in clustering high-dimensional data, and how can they be addressed?
What are the different types of classification algorithms, and how do they differ from each other?
Can you explain the difference between logistic regression and support vector machines?
What are the different types of ensemble learning methods, and how do they work?
Can you explain the difference between bagging and boosting?
What are the advantages and disadvantages of using random forests for classification tasks?
What are the different types of time-series forecasting models, and how do they differ from each other?
Can you explain the difference between ARIMA and exponential smoothing models?
What are the different types of anomaly detection algorithms, and how do they work?
Can you explain the difference between unsupervised and semi-supervised anomaly detection?
What are the different types of deep learning architectures, and how do they differ from each other?
Can you explain the difference between a feedforward neural network and a convolutional neural network?
What are the different types of optimization algorithms, and how do they differ from each other?
Can you explain the difference between batch gradient descent and mini-batch gradient descent?
What are the different regularization techniques, and how do they prevent overfitting?
Can you explain the difference between L1 and L2 regularization?
What are the different types of data augmentation techniques, and how do they improve the performance of Machine Learning models?
Can you explain the difference between data augmentation and transfer learning?
What are the different types of hyperparameter tuning techniques, and how do they help optimize Machine Learning models?
Can you explain the difference between grid search and random search?
What are the different types of model interpretability techniques, and how do they help understand the inner workings of Machine Learning models?
Can you explain the difference between LIME and SHAP?
What are the ethical considerations in Machine Learning, and how do you ensure that your research is ethically sound?
Can you explain the difference between bias and variance in Machine Learning, and how do you balance them?
What are the challenges in building Machine Learning models for real-world applications, and how do you address them?
Can you explain the difference between batch learning and online learning, and when to use each method?
What are the different types of data preprocessing techniques, and how do they prepare data for Machine Learning?
Can you explain the difference between normalization and standardization?
What are the different types of distance metrics, and how do they measure similarity between data points?
What are the different types of optimization problems in Machine Learning, and how do you solve them?
Can you explain the difference between convex and non-convex optimization problems?
What are the different types of regularization techniques, and how do they prevent overfitting?
Can you explain the difference between dropout and weight decay regularization?
What are the different types of learning rate schedules, and how do they impact the training of Machine Learning models?
Can you explain the difference between a fixed learning rate and an adaptive learning rate?
What are the different types of data imbalance, and how do you handle them in Machine Learning?
Can you explain the difference between oversampling and undersampling?
What are the different types of neural network architectures for sequence modeling, and how do they differ from each other?
Can you explain the difference between a Recurrent Neural Network and a Transformer?
What are the different types of attention mechanisms, and how do they improve the performance of Machine Learning models?
What are the challenges in building Machine Learning models for natural language processing, and how do you address them?
Can you explain the difference between word embeddings and character embeddings?
What are the different types of text classification algorithms, and how do they differ from each other?
What are the different types of named entity recognition algorithms, and how do they work?
What are the different types of sentiment analysis algorithms, and how do they determine the sentiment of a piece of text?
What are the different types of topic modeling algorithms, and how do they discover topics in a corpus of text?
What are the different types of Machine Learning models for image classification, and how do they differ from each other?
Can you explain the difference between a Convolutional Neural Network and a Residual Neural Network?
What are the different types of object detection algorithms, and how do they detect objects in an image?
What are the different types of image segmentation algorithms, and how do they segment an image into regions?
What are the different types of generative models, and how do they generate new data samples?
Can you explain the difference between a Generative Adversarial Network and a Variational Autoencoder?
What are the different types of Machine Learning models for speech recognition, and how do they differ from each other?
Can you explain the difference between a Hidden Markov Model and a Deep Neural Network for speech recognition?
What are the different types of Machine Learning models for time-series forecasting, and how do they differ from each other?
Can you explain the difference between a recurrent neural network and a convolutional neural network for time-series forecasting?
What are the different types of Machine Learning models for recommender systems, and how do they recommend items to users?
Can you explain the difference between collaborative filtering and content-based filtering for recommender systems?

These 100 Machine Learning PhD viva questions cover a wide range of topics and concepts in Machine Learning, from basic concepts such as linear regression and decision trees, to more advanced topics such as deep learning, natural language processing, and image recognition.

By preparing for these questions, you will be well-equipped to defend your thesis and demonstrate your knowledge and expertise in the field of Machine Learning. Remember to keep practicing and honing your skills, as the field of Machine Learning is constantly evolving and there is always something new to learn. Good luck with your viva!

Also Read: Top 50 Possible PhD Viva Questions

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Viva examinations: guidance

This guidance explains the viva process, how to prepare, what will happen on the day and what the possible outcomes are.

This information is for postgraduate research students. It covers:

before your viva
preparing for your viva
during your viva
outcomes of the examination

Before your viva

Entry forms.

You must enter the exam via Portico about four months before you are ready to submit. You may not submit your thesis until you have entered for the examination and your examination may be delayed if you have not done this.

Find out more about examination entry

Your supervisor is responsible for arranging the appointment of your examiners. This should be done at the same time as you complete your examination entry form, four months before you are due to submit your thesis. Examiners are appointed by UCL for their professional services as examiners with expert subject knowledge. A minimum of two examiners, one from outside UCL and (normally) one from UCL are appointed to co-examine all research degree candidates. The examiner nomination form can be found here .

Submit your thesis

Find out more about formatting, binding and submitting your thesis.

Collaborative research projects

If you are contributing to a collaborative research project you must include this information in the introduction to the thesis. You must clearly identify the demarcation between the research you are submitting for examination as an original contribution to knowledge and the work of your collaborators.

Viva arrangements

Your supervisor (or nominee) will liaise with you and your examiners to arrange and confirm a mutually convenient time and place to hold the viva examination. The viva must not be arranged before the examiners are formally appointed by UCL. It may take place at UCL, or remotely. Your examiners should have your thesis at least six working weeks before the viva and you will receive an email once the thesis has been sent to the examiners. At this point, you will be able to record the viva via the ‘Research Student Administration’ section in Portico. A user guide is available with step-by-step instructions for submitting this information. Your viva should then take place within three months of the dispatch of the thesis to your examiners.

Download the viva notification user guide

Reasonable adjustments

If you or one of your examiners have a disability which UCL cannot accommodate, other reasonable arrangements can be made for the viva. You must make a request in writing when you complete the examination entry form to allow time for arrangements to be made.

Preparing for your viva

We recommend that you re-read your thesis. Try to anticipate questions, comments and criticisms, and think how you would respond. Although you may not be able to anticipate actual questions to be asked by the examiners, this approach will encourage you to think actively about your work. You should also refresh your memory of the relevant literature. Do not attempt to re-read every paper in the bibliography of your thesis; instead, re-read carefully some of the more recent key references. If you have left university after submitting your thesis you may be unaware of very recent work. Ask your supervisor a couple of weeks before the viva whether any work of direct relevance to your thesis has been published since you submitted your thesis.

You must not contact your examiners directly at any point leading up to the viva or afterwards. All contact should be done by your supervisor or other relevant departmental staff member.

A good way to prepare for your viva is to practice. Your supervisor should give you a mock viva, or arrange for this to be undertaken by a member of your upgrade panel.

During your viva

A viva is an academic interview at which your examiners will be looking for an understanding of the subject matter of your thesis, an appreciation of its significance to established knowledge in the field, and an awareness of the breadth of the subject area.

Your supervisor will be invited to attend your viva examination, unless you request otherwise; you must indicate this on your examination entry form. Your supervisor does not have the right to participate in the viva examination but may contribute if invited to do so by the examiners.

The examiners will expect you to:

show a critical analysis of your own work and of that of others
appreciate the limitations of the methods employed and the results obtained by yourself and others
understand how the broad conclusions of your thesis support, add to or conflict with previous work
know the major concepts and recent developments in your subject

There is no formal procedure laid down for the conduct of the viva examination. Some examiners prefer to work through the thesis in the order in which it is written. Other examiners prefer to discuss topics. Very few examiners will perform a page by page criticism. You may be asked to prepare a presentation of your work in a suitable format.

You are not expected to know your thesis by heart, but to refer to the appropriate page when the examiners wish to discuss a specific point. Please ensure that you bring to the viva examination a copy of your thesis paginated in the same way as the copies you have submitted to the Research Degree Examinations Office.

You should not simply answer 'yes' or 'no' to questions nor give a prepared exposition. Try to answer the question as it is put, remembering that you are engaged in an academic conversation.

Be prepared to justify your ideas and conclusions. If the examiners challenge your interpretation but you feel that your case is a good one, muster your arguments and be willing to present your case firmly but courteously. However, if the examiners have identified a genuine weakness, concede the point gracefully. Even if you feel the examiners are unreasonably critical do not become argumentative or allow the discussion to become heated. You can agree to differ and to reconsider the point. All participants in the viva must abide by UCL's Bullying and Harassment Policy . If you make any comments to your examiners which put them under moral pressure, for example alluding to what will happen if they fail you, or if you offer any incentive to your examiners to pass you, they must terminate the examination and report to the Chair of the Research Degrees Committee via Research Degrees in Student and Registry Services.

Outcome of the examination

The following are the three most often received results and the subsequent procedures.

We will email you with reports from your examiners, copied to your supervisor, instructing you to submit the following documents:

the electronic copy of your thesis
thesis deposit agreement form (uploaded with the e-thesis)

We will award your degree once you have met the academic conditions, the Library have confirmed receipt of your e-thesis and the Deposit Agreement form, and you have cleared any outstanding fees.

The electronic copy of your thesis and thesis deposit agreement form should be deposited to the Library via UCL's Research Publications Service. Please make sure that you remove, or blank out, all personal identifiers such as signatures, addresses and telephone numbers from the e-thesis. Any photographs that you have taken should not show identifiable individuals without their permission and any you have taken of children should mask their faces. If you have any queries regarding this aspect of the process, please contact the Library directly.

UCL no longer requires a printed copy of your final thesis. If you do wish to deposit a hard copy you can do so by sending it directly to the Cataloguing & Metadata department of Library Services by post, or in person at the Main Library help desk. You will find more information about the process on the existing webpage for e-thesis submission.

Find out more about depositing an electronic and printed copy of your thesis

Once you have submitted these, we will send an email containing the confirmation of award and your reports to your email address you have recorded on Portico. The degree certificate will follow approximately four months after the official award date.

In the case of an examination for specialist doctorates (including the EngD, EdD and MPhilStud), the award of the degree is also conditional upon students passing all taught elements of their programme of study. The modules should be entered on to Portico by the Department and confirmation these elements have been completed will be passed from the Examinations Department to Research Degrees.

Minor corrections

This is by far the most common result received from the examiners.

We will email you with reports from your examiners, copied to your supervisor and Faculty Graduate Tutor. The deadline to submit your corrections officially starts from the date of this email, which will also indicate the name of the person designated to check your corrections. This deadline is for you to submit the corrections to the designated checker, and not to submit the final copy of your thesis.

Your examiners may have returned an annotated copy of your thesis to you and therefore you may already be aware of the work required. The designated checker should inform you of the format he/she expects to receive the corrections, although normally this will be in electronic format.

The designated checker should confirm the outcome of the examination within one month of receipt of the minor corrections to the thesis. This is usually done by sending an email directly to Research Degrees.

Once this has been received we will follow the procedure for a pass result.

Resubmission in a revised form

We will email you with reports from your examiners, copied to your supervisor, Departmental Graduate Tutor and Faculty Graduate Tutor. The 12 or 18 month deadline officially starts from the date of this email.

Unlike the outcome for minor corrections, where one person checks the amendments, the resubmission requires you to re-enter for the examination and submit two copies of your thesis for forwarding to the examiners.

Your examiners may have returned an annotated copy of your thesis to you and therefore you may already be aware of the work required.

Once you have completed the corrections, you will need to:

submit a new exam entry form to Research Degrees at least two weeks prior to the expected submission of the thesis
submit an electronic copy of your thesis to Research Degrees via the UCL Dropbox.

Find out more about formatting, binding and submitting your thesis. Your supervisor will be emailed to confirm that the examiners are still willing to act and provide their current contact details. This is to avoid the thesis from being sent out incorrectly. We will then send an email to your supervisor and examiners reconfirming their appointment and send the thesis to them via the UCL Dropbox.

If the examiners have requested a second viva, your supervisor will arrange this. In these circumstances, the procedure will follow that of a typical research degree examination.

If a further viva is not required, your examiners are only required to submit a joint report. They cannot award another 18 month resubmission, but can allow minor corrections.

Once the reports are received we will follow the procedure for either the pass or minor corrections result.

Other results

If the result falls outside the above descriptions, we will email you detailing the procedure you will need to follow.

How to survive a PhD viva: 17 top tips

Just handed in your PhD thesis? Now it’s time to plan for the next hurdle: a viva. Academics offer their advice on how to best prepare

Finishing your PhD thesis: tips from those in the know
The key to a successful PhD thesis? Write in your own voice
PhD: so what does it really stand for?

H anding in your PhD thesis is a massive achievement – but it’s not the end of the journey for doctoral students. Once you’ve submitted, you’ll need to prepare for the next intellectually-gruelling hurdle: a viva.

This oral examination is a chance for students to discuss their work with experts. Its formal purpose is to ensure that there’s no plagiarism involved, and that the student understands and can explain their thesis. It involves lots of penetrating questions, conceptually complex debates and is infamously terrifying.

How can PhD students best prepare? We asked a number of academics and recent survivors for their tips.

Preparing for the viva

1) Check your institution’s policies and practices

Institutional policies and practices vary. Find out who will attend your viva (eg will a supervisor attend, will there be an independent chair?) and what their roles are. Penny Tinkler and Carolyn Jackson, authors of The Doctoral Examination process: A Handbook for Students, Examiners and Supervisors

2) Re-read your thesis – and keep up-to-date with research

Don’t underestimate the amount of time the examiners will have spent reading and thinking about your thesis – however, you should remember that you are still likely to be the “expert in the room” on this particular topic. Check to see if any relevant recent papers have emerged since submitting the thesis and, if so, read these. Dianne Berry, dean of postgraduate research studies, University of Reading

3) As an examiner, you tend to stick to things you’re an expert in when driving the questioning

Your viva panel will consist of an external expertise in your subject area and an internal which may be in a subject field associated or directly related to yours. The external examiner is the one who mainly calls and fires all the shots and so it’s pretty important to have a knowledge of their published contributions, especially those that are related to your thesis in any way. Dr Bhavik Anil Patel, senior lecturer in physical and analytical chemistry

4) Think about what you will or won’t defend

Consider carefully what you will defend to the hilt in the viva, and what you are prepared to concede. It’s important to defend your claims about the originality of the thesis and its contribution to knowledge. However, no research is perfect, and showing that you have considered what could have been done differently, or even better, is not a bad thing. Penny Tinkler and Carolyn Jackson, authors of The Doctoral Examination process: A Handbook for Students, Examiners and Supervisors

5) Draw up lists of possible questions – especially ones you dread

I collected questions from a bunch of different places ( listed here ) which I then tailored to my PhD. Somebody I worked with also recommended that I put together my 10 nightmare questions. I found this really useful, by writing down and thinking about my dreaded questions, they were no longer so bad – it was almost as if I’d faced the beast.

Generally speaking, I was able to predict the questions that I was asked. There were a couple that were unexpected but they were either conceptual points or based on literature that I just didn’t know. Richard Budd, research assistant, University of Bristol who sat his viva in summer 2014 and has blogged about the experience

6) It’s not like sitting at a laptop where you can edit a sentence as you go along

By the time you finish your PhD you’ll know your thesis inside out. One of the things you won’t be as practised at is talking about it. When I was preparing for my viva, I practised vocalising answers. It’s not a case of needing to learn to answers verbatim – this would only work as a technique if you could guarantee the exact way your examiner will ask a question – but it is about thinking about how you will articulate certain things. A viva isn’t like sitting at a laptop where you can edit a sentence as you go along. Richard Budd, research assistant, University of Bristol who sat his viva in summer 2014 and has blogged about the experience

7) Bring a printed copy that is exactly the same as that of your examiners

Ensure you and your supervisor have a printed copy that is exactly the same as that of your examiners (specifically the same pagination). Mark with tabs the key sections and highlight for reference important quotes and points you might want to refer to. If you have some key diagrams it may help to have these printed larger on A4 sheets that can be used in a discussion.

There is a chance, albeit slim, that an examiner will wish to see some piece of experimental data, software, or other supporting evidence. Have this all neatly archived and accessible. You can do this after submission. Anthony Finkelstein, dean of the UCL faculty of engineering sciences who has blogged about surviving vivas

During the viva

8) Get off to a good start

Give a few detailed answers in the opening 15 minutes, demonstrating knowledge, describing your thinking and working - then the examiners are likely to relax into the viva. If the first few answers are short and non-specific, not demonstrating knowledge, this can begin to raise concerns, and that can set the tone for the whole viva. This is avoidable. Rowena Murray, author of How to Survive Your Viva: Defending a Thesis in an Oral Examination

9) Prepare for the icebreaker

Every viva opens with that dreaded icebreaker that is supposed to break you in gently but often seems to be the thing that gets students into a pickle. It’s so basic, students almost forget about it. Most often this would be to give a five to 10 minute introduction to your work and your key findings. This is such a common question that not preparing for it would be silly. Dr Bhavik Anil Patel, senior lecturer in physical and analytical chemistry

10) Silence doesn’t mean bad news

Don’t assume that you will be given any indication of the outcome at the start of the viva. The examiners may or may not offer comments on the thesis at this stage and candidates should not interpret a lack of comments at this point as a negative sign. In some cases institutional policy prohibits it. Penny Tinkler and Carolyn Jackson, authors of The Doctoral Examination process: A Handbook for Students, Examiners and Supervisors

11) Don’t point out your own weaknesses

Avoid shooting yourself in the foot by highlighting the weaknesses in the thesis by being overly humble (eg “I didn’t think this would be an acceptable piece of research given the way I handled x or y”) or by saying what you “failed to achieve” or “did not manage to carry out in a robust manner” etc. Leave that to the examiners to pick up in their reading, they don’t need help. Dr Mariana Bogdanova, lecturer in management, Queen’s University Belfast

12) Don’t talk like a politician There’s a danger of trying to over-prepare. Don’t learn answers off by heart – it removes the spontaneity and is obvious to examiners. If a student has pre-prepared answers they become a bit like politicians, answering questions they weren’t asked rather than the ones they were. I have come across mixed views on mock vivas. Some people really like them – and they can settle nerves – but other times it can remove spontaneity and steal your thunder. Jerry Wellington, head of research degrees at University of Sheffield and author of Succeeding with Your Doctorate

13) You may need to move from friendly questions to complex debates

Vivas can appear friendly and then suddenly go very conceptually complex. The language used is an alternation between accessible normal language and really specialised arguments. The student needs to be able to move orally between the two. Gina Wisker, professor of higher education and contemporary literature at Brighton University

14) If things get on top of you, use the excuse of having a look at the thesis

Make sure that before the viva you get plenty of sleep, eat properly and de-stress. If things get too much when you’re in there, use the excuse of having to look something up in your thesis. You could also pause and say “Can I write that down for a moment?” Stall for time until you get yourself back together again. Gina Wisker, professor of higher education and contemporary literature at Brighton University

15) Focus on your contribution

One of the most important things that the examiners will be looking for in your thesis, is the “contribution to knowledge”. It is the contribution which makes your work doctoral level. Be sure that you understand exactly what your contribution is, and that you are able to express and explain it clearly and concisely.

Write it down in a paragraph. Discuss it with you supervisor and fellow students. Make sure that you can relate your contribution to other work in your field and that you are able to explain how your work is different. Peter Smith, author of The PhD Viva

16) Expect your viva to last between one and three hours

Students frequently ask how long the viva is likely to be. Obviously they vary. Discipline differences are important. Our research suggests that most natural and applied sciences vivas were completed in one to three hours, whereas arts, humanities and social science vivas were typically less than two hours long. In the natural and applied sciences 43% of vivas lasted two hours or less, compared to 83% in arts, humanities and social sciences. Penny Tinkler and Carolyn Jackson, authors of The Doctoral Examination Process: A Handbook for S tudents, Examiners and Supervisors

17) Enjoy it

The best advice I ever got was “Try to enjoy it”. It seemed ludicrous at the time, but I actually found myself really getting into the discussion as the viva went on. It’s one of the earliest chances you get to talk to someone who not only informed your research (ideally) but is also conversant with your own. It’s a great chance to explore the contours of your research – treat it as such, and it doesn’t seem quite so daunting. Michael James Heron, school of computing science and digital media, Robert Gordon University

Share any advice you have in the comments below.

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Impressing the Examiners: How to Prepare for Your PhD Viva

May 27, 2020

So you’ve come to the end of your PhD studies and have submitted your thesis.

Now it is time to prepare for your PhD viva.

You might feel like everything you’ve worked for is riding on it, and in some ways, it is. But as long as you’re prepared, you should have no problem on the day.

In this blog post, we’ll discuss how to prepare for your PhD viva, as well as some PhD viva tips for how to handle it on the day.

Read on for more information.

Framing the Way You Think About Your PhD Viva

There aren’t many people with PhDs. While the number is certainly growing , you’ll be entering into an elite group.

You may think that your PhD viva is an exam where internal and external experts in your field will be waiting to trip you up and look for ways to sabotage you. That couldn’t be further from the truth.

Everyone there is rooting for you to succeed. They want to add another expert to their ranks, especially one who has something important and interesting to add to that field’s conversation.

Very rarely will you have someone on your panel who is trying to make you deliberately fail.

Think of it as a chance to talk about your work with fellow experts in your field. Often, they’re excited for the conversation they’ll be having with you about your work.

You can also think of it as an opportunity to show off what you’ve done to people who are where you might aspire to be.

Preparing for a Viva

After you’ve written and submitted your thesis , it’s a good idea to take a break from it for a while. Focus on a hobby, read a few books not related to your thesis, or start a new project.

This clears your mind and allows you to look at your thesis with fresh eyes when you prepare for your viva.

Re-read your thesis before you go to your viva. It may sound silly, but you’ve been working on it for several years. Some of the arguments you’ve made may now seem a bit fuzzy to you, as you’ve been working on the minutiae of the chapters.

You need to make sure you remember the overarching theme of your thesis, as well as the arguments you’ve made in each chapter. Most examiners will allow you to bring in notes, and there will be a copy of your thesis for your referral. Don’t be afraid to make notes for yourself.

If you want to book a mock-viva with a real thesis examiner then get in touch. We run regular mock-vivas.

Overall: familiarise yourself with the major themes in both the thesis as a whole but also in individual chapters.

Practise, Practise, Practise

Practise summing up the main points of your thesis. You’ll be asked about your major argument, as well as some of the minor arguments you’ve made within the thesis.

By now, you’ve likely already presented your thesis (or parts of it) at conferences, or discussed it at length with your advisor. If you’re worried about how well you’ll be able to do this, remember that you have done this previously.

You may even want to hold a practice viva where some of your friends or family members ask you about your research. You should be able to explain it in a way that is understandable to them, on some level. Obviously, they’re not experts in your field, but they should be able to have some grasp of what your thesis is about after explaining it to them.

Your PhD Thesis. On one page.

Anticipate the questions.

Speak to your advisor before you have your viva. Discuss with him or her some of the questions that may be asked beforehand. Or, you can ask your department, who may have a guide for PhD or MA students defending their theses. Or, you can look at the guide we’ve published .

If you can anticipate the questions beforehand, you won’t feel as nervous when they’re asked. While they may ask you a few questions you won’t anticipate to ensure you’ve written the thesis yourself, you will still likely be able to rehearse the answers to the majority of their questions.

On the Day of the Viva

On the day of the viva, arrive early with plenty of time to spare. You may consider spending the night nearby if you live far away. Make sure you know where to go, and are properly fed and hydrated. You may wish to bring water with you to the viva itself. Re-read your notes and try to focus on relaxing. Don’t overthink it.

Manage Your Expectations

Don’t expect to pass with zero corrections. This does happen but is usually very rare. You may hear of your colleagues doing this, and feel disappointed if you don’t.

Most people pass with minor or major corrections. Some people will be required to resubmit following very major revisions. This may seem like a huge blow, but remember that most people go on to resubmit their thesis successfully.

Very rarely do people not pass, or are awarded a lower degree because their thesis was not “good enough.” Your advisor has likely done a great job of helping shape your PhD, and you should expect that you will pass if you’re prepared, but likely with some form of corrections.

How to Prepare for Your PhD Viva

We hope this article answered your question of how to prepare for a PhD viva. Preparing for a viva can be nerve wracking, as it may feel as though the culmination of the past few years are all riding on this one moment. Remember, everyone is rooting for you to pass, even your examiners.

Not quite ready to submit your thesis? Have a look at our PhD thesis writing course , where we can help you become a better writer and be ready to take your PhD with confidence.

Hello, Doctor…

Sounds good, doesn’t it? Be able to call yourself Doctor sooner with our five-star rated How to Write A PhD email-course. Learn everything your supervisor should have taught you about planning and completing a PhD.

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COMMENTS

Top 12 Potential PhD Viva Questions and How to Answer Them
Types of PhD Viva Questions. Generally, examiners prepare a series of questions for you to answer at the PhD viva voce examination. These questions are primarily based on your thesis. However, the questions asked in PhD viva examinations can be broadly grouped under four basic headings: General Questions; Research Context and Methods; Analysis ...
Top 50 Possible PhD Viva Questions
Defending your master's thesis in front of domain experts, co-scholars, and students is quite an interesting experience. The difficult part of the viva for every researcher is facing unexpected questions. In this article, ilovephd provides 38 possible PhD viva questions frequently asked during the thesis viva.
A guide to answering PhD viva questions (with examples)
The PhD viva is an oral examination conducted by a panel that takes place as part of the PhD defence. The panel asks a PhD student questions about their research project and thesis, which requires the candidate to demonstrate knowledge in the subject area and understanding of how it applies to their project's topic.
Top 10 Ph.D. Viva Questions and How to Answer Them
1. Tell us about your study. Usually the first question is an opener and is asked with the goal of breaking the ice and getting you talking about your thesis. The items the panel presents to you will start broad and get more specific and involved as your viva progresses.
PDF A Guide for Viva Preparation
The viva voce, shortened to viva, is an oral examination where you are expected to 'defend' your thesis, and the quality of your research will be assessed. The viva will take place usually within 3 months of submitting your thesis; it is a required examination in order to achieve a postgraduate research degree.
PhD Viva Voces
Summary. A PhD viva involves defending your thesis in an oral examination with at least two examiners.; The aim of a PhD viva is to confirm that the work is your own, that you have a deep understanding of your project and, overall, that you are a competent researcher.; There are no standard durations, but they usually range from one to three hours, with most lasting approximately two hours.
(PDF) The Doctoral Viva: Questions for, with and to ...
The viva voce, known commonly simply as the 'viva' or the. PhD 'defence', is a landmark occasion to evaluate a doctor-. al candidate's written thesis (or dissertation) and their com ...
140+ Viva Questions & How to Prepare for Viva?
1. Summarize your project/thesis/research in 3 minutes. To answer this question correctly, you need to be well-versed in the entire project. Start with an answer by explaining why did you select the topic of your project/thesis/research and close your explanation by providing an optimum solution to the problem. 2.
Common PhD Viva Questions
What follows are some common PhD viva questions which your examiners may ask you. Plus some additional advice based off my own PhD viva experience. For an intro to the PhD viva including the typical structure and potential outcomes please see my introductory post: How to Defend a Thesis: An Introduction to the PhD Viva
Viva Question Repository
Viva Question Repository. The Viva Voce (aka Defense) Question Repository! This is a repository of questions that were asked at Vivas of students, just like you. Look up what questions you can expect in your Viva! Don't get caught off-guard. (Pro tip: Want to sort by more than one heading? Hold shift and click the headings you want to sort by.)
How to prepare for your viva: 8 useful tips
Be confident in your knowledge. 3: Think about the potential questions. One of the best things you can do to maximize your chances of a confident viva performance is to consider the potential viva questions and the way in which you could approach them. There are plenty of websites that provide you with sample discussion points that are likely ...
Preparing For A Viva Voce (Dissertation Defence)
Preparing for your dissertation or thesis defense (also called a "viva voce") is a formidable task. All your hard work over the years leads you to this one point, and you'll need to defend yourself against some of the most experienced researchers you've encountered so far. It's natural to feel a little nervous.
Preparing For Your Dissertation Defense (Viva Voce): 9 Questions You
Learn about the 9 critical questions you need to be ready for as you prepare for your dissertation or thesis defense (also called a viva voce or oral defense...
PhD Viva Questions [Interactive Template]
The easiest way to prepare for your viva. Our free PhD Viva Questions template lets you familiarise yourself with the most common questions. It's been designed in collaboration with Professor Peter Smith, author of Palgrave's The PhD Viva. The template is interactive and editable, meaning you can fully prepare model answers in advance of ...
How to structure your viva presentation (with examples)
A very traditional viva presentation structure simply follows the structure of the PhD thesis. This means that the viva presentation covers all parts of the thesis, including an introduction, the literature review, the methodology, results, conclusions, etcetera. Example of a traditional viva presentation structure.
Defending your doctoral thesis: the PhD viva
Once you have submitted your thesis you will be invited to defend your doctorate at a 'viva voce' (Latin for 'by live voice') or oral examination. The thesis defence can be a daunting prospect, but many people really enjoy this experience of discussing their PhD research with genuinely interested experts. It can also be a useful networking ...
100 Machine Learning PhD viva Questions
These 100 Machine Learning PhD viva questions cover a wide range of topics and concepts in Machine Learning, from basic concepts such as linear regression and decision trees, to more advanced topics such as deep learning, natural language processing, and image recognition. By preparing for these questions, you will be well-equipped to defend ...
Viva examinations: guidance
It may take place at UCL, or remotely. Your examiners should have your thesis at least six working weeks before the viva and you will receive an email once the thesis has been sent to the examiners. At this point, you will be able to record the viva via the 'Research Student Administration' section in Portico.
How to survive a PhD viva: 17 top tips
Make sure that you can relate your contribution to other work in your field and that you are able to explain how your work is different. Peter Smith, author of The PhD Viva. 16) Expect your viva ...
How to Prepare for the Viva Examination
To enhance the support for postgraduate research students (PGRs) across the sector, this project, funded by the QAA (Collaborative Enhancement Project) has developed a series of videos and resources to help students prepare for their viva (oral) examination.Using the network developed as part of the University Alliance coordinated Doctoral Training Alliance (DTA) programme, it uses the ...
13 steps I took to prepare for my PhD viva
Step 4: I prepared questions that could come up in the thesis in a Q&A document. I looked online, and found many questions, and I had also bought PhD viva cards a year or so ago. ... Step 12: In the final week, I practiced the presentation, practiced answering viva questions using the viva cards by myself and got my husband to ask me the ...
Impressing the Examiners: How to Prepare for Your PhD Viva
Preparing for a Viva . After you've written and submitted your thesis, it's a good idea to take a break from it for a while.Focus on a hobby, read a few books not related to your thesis, or start a new project. This clears your mind and allows you to look at your thesis with fresh eyes when you prepare for your viva.

Top 12 Potential PhD Viva Questions and How to Answer Them