phd thesis meaning

  • What Is a PhD Thesis?
  • Doing a PhD

This page will explain what a PhD thesis is and offer advice on how to write a good thesis, from outlining the typical structure to guiding you through the referencing. A summary of this page is as follows:

  • A PhD thesis is a concentrated piece of original research which must be carried out by all PhD students in order to successfully earn their doctoral degree.
  • The fundamental purpose of a thesis is to explain the conclusion that has been reached as a result of undertaking the research project.
  • The typical PhD thesis structure will contain four chapters of original work sandwiched between a literature review chapter and a concluding chapter.
  • There is no universal rule for the length of a thesis, but general guidelines set the word count between 70,000 to 100,000 words .

What Is a Thesis?

A thesis is the main output of a PhD as it explains your workflow in reaching the conclusions you have come to in undertaking the research project. As a result, much of the content of your thesis will be based around your chapters of original work.

For your thesis to be successful, it needs to adequately defend your argument and provide a unique or increased insight into your field that was not previously available. As such, you can’t rely on other ideas or results to produce your thesis; it needs to be an original piece of text that belongs to you and you alone.

What Should a Thesis Include?

Although each thesis will be unique, they will all follow the same general format. To demonstrate this, we’ve put together an example structure of a PhD thesis and explained what you should include in each section below.

Acknowledgements

This is a personal section which you may or may not choose to include. The vast majority of students include it, giving both gratitude and recognition to their supervisor, university, sponsor/funder and anyone else who has supported them along the way.

1. Introduction

Provide a brief overview of your reason for carrying out your research project and what you hope to achieve by undertaking it. Following this, explain the structure of your thesis to give the reader context for what he or she is about to read.

2. Literature Review

Set the context of your research by explaining the foundation of what is currently known within your field of research, what recent developments have occurred, and where the gaps in knowledge are. You should conclude the literature review by outlining the overarching aims and objectives of the research project.

3. Main Body

This section focuses on explaining all aspects of your original research and so will form the bulk of your thesis. Typically, this section will contain four chapters covering the below:

  • your research/data collection methodologies,
  • your results,
  • a comprehensive analysis of your results,
  • a detailed discussion of your findings.

Depending on your project, each of your chapters may independently contain the structure listed above or in some projects, each chapter could be focussed entirely on one aspect (e.g. a standalone results chapter). Ideally, each of these chapters should be formatted such that they could be translated into papers for submission to peer-reviewed journals. Therefore, following your PhD, you should be able to submit papers for peer-review by reusing content you have already produced.

4. Conclusion

The conclusion will be a summary of your key findings with emphasis placed on the new contributions you have made to your field.

When producing your conclusion, it’s imperative that you relate it back to your original research aims, objectives and hypotheses. Make sure you have answered your original question.

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

How Many Words Is a PhD Thesis?

A common question we receive from students is – “how long should my thesis be?“.

Every university has different guidelines on this matter, therefore, consult with your university to get an understanding of their full requirements. Generally speaking, most supervisors will suggest somewhere between 70,000 and 100,000 words . This usually corresponds to somewhere between 250 – 350 pages .

We must stress that this is flexible, and it is important not to focus solely on the length of your thesis, but rather the quality.

How Do I Format My Thesis?

Although the exact formatting requirements will vary depending on the university, the typical formatting policies adopted by most universities are:

What Happens When I Finish My Thesis?

After you have submitted your thesis, you will attend a viva . A viva is an interview-style examination during which you are required to defend your thesis and answer questions on it. The aim of the viva is to convince your examiners that your work is of the level required for a doctoral degree. It is one of the last steps in the PhD process and arguably one of the most daunting!

For more information on the viva process and for tips on how to confidently pass it, please refer to our in-depth PhD Viva Guide .

How Do I Publish My Thesis?

Unfortunately, you can’t publish your thesis in its entirety in a journal. However, universities can make it available for others to read through their library system.

If you want to submit your work in a journal, you will need to develop it into one or more peer-reviewed papers. This will largely involve reformatting, condensing and tailoring it to meet the standards of the journal you are targeting.

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How To Write A Dissertation Or Thesis

8 straightforward steps to craft an a-grade dissertation.

By: Derek Jansen (MBA) Expert Reviewed By: Dr Eunice Rautenbach | June 2020

Writing a dissertation or thesis is not a simple task. It takes time, energy and a lot of will power to get you across the finish line. It’s not easy – but it doesn’t necessarily need to be a painful process. If you understand the big-picture process of how to write a dissertation or thesis, your research journey will be a lot smoother.  

In this post, I’m going to outline the big-picture process of how to write a high-quality dissertation or thesis, without losing your mind along the way. If you’re just starting your research, this post is perfect for you. Alternatively, if you’ve already submitted your proposal, this article which covers how to structure a dissertation might be more helpful.

How To Write A Dissertation: 8 Steps

  • Clearly understand what a dissertation (or thesis) is
  • Find a unique and valuable research topic
  • Craft a convincing research proposal
  • Write up a strong introduction chapter
  • Review the existing literature and compile a literature review
  • Design a rigorous research strategy and undertake your own research
  • Present the findings of your research
  • Draw a conclusion and discuss the implications

Start writing your dissertation

Step 1: Understand exactly what a dissertation is

This probably sounds like a no-brainer, but all too often, students come to us for help with their research and the underlying issue is that they don’t fully understand what a dissertation (or thesis) actually is.

So, what is a dissertation?

At its simplest, a dissertation or thesis is a formal piece of research , reflecting the standard research process . But what is the standard research process, you ask? The research process involves 4 key steps:

  • Ask a very specific, well-articulated question (s) (your research topic)
  • See what other researchers have said about it (if they’ve already answered it)
  • If they haven’t answered it adequately, undertake your own data collection and analysis in a scientifically rigorous fashion
  • Answer your original question(s), based on your analysis findings

 A dissertation or thesis is a formal piece of research, reflecting the standard four step academic research process.

In short, the research process is simply about asking and answering questions in a systematic fashion . This probably sounds pretty obvious, but people often think they’ve done “research”, when in fact what they have done is:

  • Started with a vague, poorly articulated question
  • Not taken the time to see what research has already been done regarding the question
  • Collected data and opinions that support their gut and undertaken a flimsy analysis
  • Drawn a shaky conclusion, based on that analysis

If you want to see the perfect example of this in action, look out for the next Facebook post where someone claims they’ve done “research”… All too often, people consider reading a few blog posts to constitute research. Its no surprise then that what they end up with is an opinion piece, not research. Okay, okay – I’ll climb off my soapbox now.

The key takeaway here is that a dissertation (or thesis) is a formal piece of research, reflecting the research process. It’s not an opinion piece , nor a place to push your agenda or try to convince someone of your position. Writing a good dissertation involves asking a question and taking a systematic, rigorous approach to answering it.

If you understand this and are comfortable leaving your opinions or preconceived ideas at the door, you’re already off to a good start!

 A dissertation is not an opinion piece, nor a place to push your agenda or try to  convince someone of your position.

Step 2: Find a unique, valuable research topic

As we saw, the first step of the research process is to ask a specific, well-articulated question. In other words, you need to find a research topic that asks a specific question or set of questions (these are called research questions ). Sounds easy enough, right? All you’ve got to do is identify a question or two and you’ve got a winning research topic. Well, not quite…

A good dissertation or thesis topic has a few important attributes. Specifically, a solid research topic should be:

Let’s take a closer look at these:

Attribute #1: Clear

Your research topic needs to be crystal clear about what you’re planning to research, what you want to know, and within what context. There shouldn’t be any ambiguity or vagueness about what you’ll research.

Here’s an example of a clearly articulated research topic:

An analysis of consumer-based factors influencing organisational trust in British low-cost online equity brokerage firms.

As you can see in the example, its crystal clear what will be analysed (factors impacting organisational trust), amongst who (consumers) and in what context (British low-cost equity brokerage firms, based online).

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phd thesis meaning

Attribute #2:   Unique

Your research should be asking a question(s) that hasn’t been asked before, or that hasn’t been asked in a specific context (for example, in a specific country or industry).

For example, sticking organisational trust topic above, it’s quite likely that organisational trust factors in the UK have been investigated before, but the context (online low-cost equity brokerages) could make this research unique. Therefore, the context makes this research original.

One caveat when using context as the basis for originality – you need to have a good reason to suspect that your findings in this context might be different from the existing research – otherwise, there’s no reason to warrant researching it.

Attribute #3: Important

Simply asking a unique or original question is not enough – the question needs to create value. In other words, successfully answering your research questions should provide some value to the field of research or the industry. You can’t research something just to satisfy your curiosity. It needs to make some form of contribution either to research or industry.

For example, researching the factors influencing consumer trust would create value by enabling businesses to tailor their operations and marketing to leverage factors that promote trust. In other words, it would have a clear benefit to industry.

So, how do you go about finding a unique and valuable research topic? We explain that in detail in this video post – How To Find A Research Topic . Yeah, we’ve got you covered 😊

Step 3: Write a convincing research proposal

Once you’ve pinned down a high-quality research topic, the next step is to convince your university to let you research it. No matter how awesome you think your topic is, it still needs to get the rubber stamp before you can move forward with your research. The research proposal is the tool you’ll use for this job.

So, what’s in a research proposal?

The main “job” of a research proposal is to convince your university, advisor or committee that your research topic is worthy of approval. But convince them of what? Well, this varies from university to university, but generally, they want to see that:

  • You have a clearly articulated, unique and important topic (this might sound familiar…)
  • You’ve done some initial reading of the existing literature relevant to your topic (i.e. a literature review)
  • You have a provisional plan in terms of how you will collect data and analyse it (i.e. a methodology)

At the proposal stage, it’s (generally) not expected that you’ve extensively reviewed the existing literature , but you will need to show that you’ve done enough reading to identify a clear gap for original (unique) research. Similarly, they generally don’t expect that you have a rock-solid research methodology mapped out, but you should have an idea of whether you’ll be undertaking qualitative or quantitative analysis , and how you’ll collect your data (we’ll discuss this in more detail later).

Long story short – don’t stress about having every detail of your research meticulously thought out at the proposal stage – this will develop as you progress through your research. However, you do need to show that you’ve “done your homework” and that your research is worthy of approval .

So, how do you go about crafting a high-quality, convincing proposal? We cover that in detail in this video post – How To Write A Top-Class Research Proposal . We’ve also got a video walkthrough of two proposal examples here .

Step 4: Craft a strong introduction chapter

Once your proposal’s been approved, its time to get writing your actual dissertation or thesis! The good news is that if you put the time into crafting a high-quality proposal, you’ve already got a head start on your first three chapters – introduction, literature review and methodology – as you can use your proposal as the basis for these.

Handy sidenote – our free dissertation & thesis template is a great way to speed up your dissertation writing journey.

What’s the introduction chapter all about?

The purpose of the introduction chapter is to set the scene for your research (dare I say, to introduce it…) so that the reader understands what you’ll be researching and why it’s important. In other words, it covers the same ground as the research proposal in that it justifies your research topic.

What goes into the introduction chapter?

This can vary slightly between universities and degrees, but generally, the introduction chapter will include the following:

  • A brief background to the study, explaining the overall area of research
  • A problem statement , explaining what the problem is with the current state of research (in other words, where the knowledge gap exists)
  • Your research questions – in other words, the specific questions your study will seek to answer (based on the knowledge gap)
  • The significance of your study – in other words, why it’s important and how its findings will be useful in the world

As you can see, this all about explaining the “what” and the “why” of your research (as opposed to the “how”). So, your introduction chapter is basically the salesman of your study, “selling” your research to the first-time reader and (hopefully) getting them interested to read more.

How do I write the introduction chapter, you ask? We cover that in detail in this post .

The introduction chapter is where you set the scene for your research, detailing exactly what you’ll be researching and why it’s important.

Step 5: Undertake an in-depth literature review

As I mentioned earlier, you’ll need to do some initial review of the literature in Steps 2 and 3 to find your research gap and craft a convincing research proposal – but that’s just scratching the surface. Once you reach the literature review stage of your dissertation or thesis, you need to dig a lot deeper into the existing research and write up a comprehensive literature review chapter.

What’s the literature review all about?

There are two main stages in the literature review process:

Literature Review Step 1: Reading up

The first stage is for you to deep dive into the existing literature (journal articles, textbook chapters, industry reports, etc) to gain an in-depth understanding of the current state of research regarding your topic. While you don’t need to read every single article, you do need to ensure that you cover all literature that is related to your core research questions, and create a comprehensive catalogue of that literature , which you’ll use in the next step.

Reading and digesting all the relevant literature is a time consuming and intellectually demanding process. Many students underestimate just how much work goes into this step, so make sure that you allocate a good amount of time for this when planning out your research. Thankfully, there are ways to fast track the process – be sure to check out this article covering how to read journal articles quickly .

Dissertation Coaching

Literature Review Step 2: Writing up

Once you’ve worked through the literature and digested it all, you’ll need to write up your literature review chapter. Many students make the mistake of thinking that the literature review chapter is simply a summary of what other researchers have said. While this is partly true, a literature review is much more than just a summary. To pull off a good literature review chapter, you’ll need to achieve at least 3 things:

  • You need to synthesise the existing research , not just summarise it. In other words, you need to show how different pieces of theory fit together, what’s agreed on by researchers, what’s not.
  • You need to highlight a research gap that your research is going to fill. In other words, you’ve got to outline the problem so that your research topic can provide a solution.
  • You need to use the existing research to inform your methodology and approach to your own research design. For example, you might use questions or Likert scales from previous studies in your your own survey design .

As you can see, a good literature review is more than just a summary of the published research. It’s the foundation on which your own research is built, so it deserves a lot of love and attention. Take the time to craft a comprehensive literature review with a suitable structure .

But, how do I actually write the literature review chapter, you ask? We cover that in detail in this video post .

Step 6: Carry out your own research

Once you’ve completed your literature review and have a sound understanding of the existing research, its time to develop your own research (finally!). You’ll design this research specifically so that you can find the answers to your unique research question.

There are two steps here – designing your research strategy and executing on it:

1 – Design your research strategy

The first step is to design your research strategy and craft a methodology chapter . I won’t get into the technicalities of the methodology chapter here, but in simple terms, this chapter is about explaining the “how” of your research. If you recall, the introduction and literature review chapters discussed the “what” and the “why”, so it makes sense that the next point to cover is the “how” –that’s what the methodology chapter is all about.

In this section, you’ll need to make firm decisions about your research design. This includes things like:

  • Your research philosophy (e.g. positivism or interpretivism )
  • Your overall methodology (e.g. qualitative , quantitative or mixed methods)
  • Your data collection strategy (e.g. interviews , focus groups, surveys)
  • Your data analysis strategy (e.g. content analysis , correlation analysis, regression)

If these words have got your head spinning, don’t worry! We’ll explain these in plain language in other posts. It’s not essential that you understand the intricacies of research design (yet!). The key takeaway here is that you’ll need to make decisions about how you’ll design your own research, and you’ll need to describe (and justify) your decisions in your methodology chapter.

2 – Execute: Collect and analyse your data

Once you’ve worked out your research design, you’ll put it into action and start collecting your data. This might mean undertaking interviews, hosting an online survey or any other data collection method. Data collection can take quite a bit of time (especially if you host in-person interviews), so be sure to factor sufficient time into your project plan for this. Oftentimes, things don’t go 100% to plan (for example, you don’t get as many survey responses as you hoped for), so bake a little extra time into your budget here.

Once you’ve collected your data, you’ll need to do some data preparation before you can sink your teeth into the analysis. For example:

  • If you carry out interviews or focus groups, you’ll need to transcribe your audio data to text (i.e. a Word document).
  • If you collect quantitative survey data, you’ll need to clean up your data and get it into the right format for whichever analysis software you use (for example, SPSS, R or STATA).

Once you’ve completed your data prep, you’ll undertake your analysis, using the techniques that you described in your methodology. Depending on what you find in your analysis, you might also do some additional forms of analysis that you hadn’t planned for. For example, you might see something in the data that raises new questions or that requires clarification with further analysis.

The type(s) of analysis that you’ll use depend entirely on the nature of your research and your research questions. For example:

  • If your research if exploratory in nature, you’ll often use qualitative analysis techniques .
  • If your research is confirmatory in nature, you’ll often use quantitative analysis techniques
  • If your research involves a mix of both, you might use a mixed methods approach

Again, if these words have got your head spinning, don’t worry! We’ll explain these concepts and techniques in other posts. The key takeaway is simply that there’s no “one size fits all” for research design and methodology – it all depends on your topic, your research questions and your data. So, don’t be surprised if your study colleagues take a completely different approach to yours.

The research philosophy is at the core of the methodology chapter

Step 7: Present your findings

Once you’ve completed your analysis, it’s time to present your findings (finally!). In a dissertation or thesis, you’ll typically present your findings in two chapters – the results chapter and the discussion chapter .

What’s the difference between the results chapter and the discussion chapter?

While these two chapters are similar, the results chapter generally just presents the processed data neatly and clearly without interpretation, while the discussion chapter explains the story the data are telling  – in other words, it provides your interpretation of the results.

For example, if you were researching the factors that influence consumer trust, you might have used a quantitative approach to identify the relationship between potential factors (e.g. perceived integrity and competence of the organisation) and consumer trust. In this case:

  • Your results chapter would just present the results of the statistical tests. For example, correlation results or differences between groups. In other words, the processed numbers.
  • Your discussion chapter would explain what the numbers mean in relation to your research question(s). For example, Factor 1 has a weak relationship with consumer trust, while Factor 2 has a strong relationship.

Depending on the university and degree, these two chapters (results and discussion) are sometimes merged into one , so be sure to check with your institution what their preference is. Regardless of the chapter structure, this section is about presenting the findings of your research in a clear, easy to understand fashion.

Importantly, your discussion here needs to link back to your research questions (which you outlined in the introduction or literature review chapter). In other words, it needs to answer the key questions you asked (or at least attempt to answer them).

For example, if we look at the sample research topic:

In this case, the discussion section would clearly outline which factors seem to have a noteworthy influence on organisational trust. By doing so, they are answering the overarching question and fulfilling the purpose of the research .

Your discussion here needs to link back to your research questions. It needs to answer the key questions you asked in your introduction.

For more information about the results chapter , check out this post for qualitative studies and this post for quantitative studies .

Step 8: The Final Step Draw a conclusion and discuss the implications

Last but not least, you’ll need to wrap up your research with the conclusion chapter . In this chapter, you’ll bring your research full circle by highlighting the key findings of your study and explaining what the implications of these findings are.

What exactly are key findings? The key findings are those findings which directly relate to your original research questions and overall research objectives (which you discussed in your introduction chapter). The implications, on the other hand, explain what your findings mean for industry, or for research in your area.

Sticking with the consumer trust topic example, the conclusion might look something like this:

Key findings

This study set out to identify which factors influence consumer-based trust in British low-cost online equity brokerage firms. The results suggest that the following factors have a large impact on consumer trust:

While the following factors have a very limited impact on consumer trust:

Notably, within the 25-30 age groups, Factors E had a noticeably larger impact, which may be explained by…

Implications

The findings having noteworthy implications for British low-cost online equity brokers. Specifically:

The large impact of Factors X and Y implies that brokers need to consider….

The limited impact of Factor E implies that brokers need to…

As you can see, the conclusion chapter is basically explaining the “what” (what your study found) and the “so what?” (what the findings mean for the industry or research). This brings the study full circle and closes off the document.

In the final chapter, you’ll bring your research full circle by highlighting the key findings of your study and the implications thereof.

Let’s recap – how to write a dissertation or thesis

You’re still with me? Impressive! I know that this post was a long one, but hopefully you’ve learnt a thing or two about how to write a dissertation or thesis, and are now better equipped to start your own research.

To recap, the 8 steps to writing a quality dissertation (or thesis) are as follows:

  • Understand what a dissertation (or thesis) is – a research project that follows the research process.
  • Find a unique (original) and important research topic
  • Craft a convincing dissertation or thesis research proposal
  • Write a clear, compelling introduction chapter
  • Undertake a thorough review of the existing research and write up a literature review
  • Undertake your own research
  • Present and interpret your findings

Once you’ve wrapped up the core chapters, all that’s typically left is the abstract , reference list and appendices. As always, be sure to check with your university if they have any additional requirements in terms of structure or content.  

phd thesis meaning

Psst... there’s more!

This post was based on one of our popular Research Bootcamps . If you're working on a research project, you'll definitely want to check this out ...

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20 Comments

Romia

thankfull >>>this is very useful

Madhu

Thank you, it was really helpful

Elhadi Abdelrahim

unquestionably, this amazing simplified way of teaching. Really , I couldn’t find in the literature words that fully explicit my great thanks to you. However, I could only say thanks a-lot.

Derek Jansen

Great to hear that – thanks for the feedback. Good luck writing your dissertation/thesis.

Writer

This is the most comprehensive explanation of how to write a dissertation. Many thanks for sharing it free of charge.

Sam

Very rich presentation. Thank you

Hailu

Thanks Derek Jansen|GRADCOACH, I find it very useful guide to arrange my activities and proceed to research!

Nunurayi Tambala

Thank you so much for such a marvelous teaching .I am so convinced that am going to write a comprehensive and a distinct masters dissertation

Hussein Huwail

It is an amazing comprehensive explanation

Eva

This was straightforward. Thank you!

Ken

I can say that your explanations are simple and enlightening – understanding what you have done here is easy for me. Could you write more about the different types of research methods specific to the three methodologies: quan, qual and MM. I look forward to interacting with this website more in the future.

Thanks for the feedback and suggestions 🙂

Osasuyi Blessing

Hello, your write ups is quite educative. However, l have challenges in going about my research questions which is below; *Building the enablers of organisational growth through effective governance and purposeful leadership.*

Dung Doh

Very educating.

Ezra Daniel

Just listening to the name of the dissertation makes the student nervous. As writing a top-quality dissertation is a difficult task as it is a lengthy topic, requires a lot of research and understanding and is usually around 10,000 to 15000 words. Sometimes due to studies, unbalanced workload or lack of research and writing skill students look for dissertation submission from professional writers.

Nice Edinam Hoyah

Thank you 💕😊 very much. I was confused but your comprehensive explanation has cleared my doubts of ever presenting a good thesis. Thank you.

Sehauli

thank you so much, that was so useful

Daniel Madsen

Hi. Where is the excel spread sheet ark?

Emmanuel kKoko

could you please help me look at your thesis paper to enable me to do the portion that has to do with the specification

my topic is “the impact of domestic revenue mobilization.

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A Step-By-Step Guide to Writing a Ph.D. Dissertation

An Independent Research Project for Ph.D. Candidates

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A dissertation, also known as a doctoral thesis , is the final required part of completing a student's doctoral study. Undertaken after a student completes coursework and passes a comprehensive examination , the dissertation is the final hurdle in completing a Ph.D. or other doctoral degree. The dissertation is expected to make a new and creative contribution to a field of study and to demonstrate the student's expertise. In social science and science programs, the dissertation usually requires conducting empirical research.

Elements of a Strong Dissertation

According to the Association of American Medical Colleges, a strong medical dissertation relies heavily on the creation of a specific hypothesis that can be either disproven or supported by data collected by independent student research. Further, it must also contain several key elements starting with an introduction to the problem statement, conceptual framework and research question as well as references to literature on already published on the topic. 

A dissertation must also be relevant (and proven to be such) as well as capable of being researched independently by the student. Though the required length of these dissertations varies by school, the governing body overseeing the practice of medicine in the United States standardizes this same protocol. Also included in the dissertation is the methodology for research and data collection as well as instrumentation and quality control. A stated section on population and sample size for the study is imperative to defending the thesis once it comes time to do so.

Like most scientific publications, the thesis must also contain a section of published results and an analysis of what this entails for the scientific or medical community. The discussion and conclusion sections let the review committee know that the student understands the full implications of his or her work as well as its real-world application to their field of study (and soon, professional work). 

Approval Process

Although students are expected to conduct the bulk of their research and pen the entire dissertation on their own, most graduate medical programs provide an advisory and review committee to the student upon starting their studies. Through a series of weekly reviews over their course of schooling, the student and his or her advisor hone in on the hypothesis of the dissertation before they submit it to the review committee to begin work on writing the thesis. 

From there, the student can take as long or as short of a time as they need to complete their dissertation, often resulting in students who have finished their entire courseload achieving ABD status ("all but dissertation"), just shy of receiving their full Ph.D. In this interim period, the student — with the occasional guidance of his or her advisor —  is expected to research, test and write a dissertation that can be defended in a public forum. 

Once the review committee accepts the finalized draft of the thesis, the doctoral candidate will then get the chance to publicly defend his or her statements. If they pass this test, the dissertation is submitted electronically to the school's academic journal or archive and the candidate's full doctoral degree is issued once the final paperwork has been submitted.

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Requirements, deadlines, and other information on preparing and submitting a dissertation.

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PhD candidates must successfully complete and submit a dissertation to qualify for degree conferral. It is perhaps the most important and far-reaching undertaking in the entire doctoral program, having an impact that extends well beyond graduate studies. 

Requirements and Deadlines 

Each graduate program maintains specific requirements for the content and evaluation of the dissertation. Be sure to review your program’s departmental requirements prior to beginning the process. You should also review Harvard Griffin GSAS’s dissertation policies for important information about formatting, submission, and publishing and distribution options, including embargoes.  

Degrees are awarded in November, March, and May. Dissertation submission deadlines are noted in the Degree Calendar section of Policies . 

Help with the Dissertation 

Library research .

It’s never too early to start planning for your dissertation. The Harvard Library can help! The Library maintains a guide for graduate students engaged in scholarly writing titled the Writing Oasis . They also offer access to Overleaf , which is an online LaTeX and Rich Text collaborative writing and publishing tool that makes the process of academic writing, editing, and publishing quicker and easier. Overleaf has a section on Writing Your Dissertation that you may find useful.  

Writing 

Students can find support with planning and preparing to write the dissertation from their academic advisors and programs. The Fellowships & Writing Center also offers workshops on various aspects of dissertation writing, holds brainstorming office hours during which students may discuss their dissertations, and provides written feedback on dissertation chapters.  

Dissertation Completion Fellowships 

Harvard Griffin GSAS provides a dissertation completion fellowship (DCF) for one academic year to eligible PhD students in the humanities and social sciences who anticipate completing their dissertations within the year. Find out more in Policies .

Student Affairs

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  • Published: 06 July 2016

What’s the point of the PhD thesis?

  • Julie Gould 1  

Nature volume  535 ,  pages 26–28 ( 2016 ) Cite this article

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Doctoral courses are slowly being modernized. Now the thesis and viva need to catch up.

phd thesis meaning

On the morning of Tom Marshall's PhD defence, he put on the suit he had bought for the occasion and climbed onto the stage in front of a 50-strong audience, including his parents and 6 examiners. He gave a 15-minute-long presentation, then faced an hour of cross-examination about his past 5 years of neuroscience research at the Donders Institute for Brain, Cognition and Behaviour in Nijmegen, the Netherlands. A lot was at stake: this oral examination would determine whether he passed or failed. “At the one-hour mark someone came in, banged a stick on the floor and said ' hora est ',” says Marshall — the ceremonial call that his time was up. “But I couldn't. I had enjoyed the whole experience far too much, and ended up talking for a few extra minutes.”

phd thesis meaning

Marshall's elaborate, public PhD assessment is very different from that faced by Kelsie Long, an Earth-sciences PhD candidate at the Australian National University (ANU) in Canberra. Her PhD will be assessed solely on her written thesis, which will be mailed off to examiners and returned with comments. She will do a public presentation of her work later this year, but it won't affect her final result. “It almost feels like a rite of passage,” she says.

PhDs are assessed in very different ways around the world. Almost all involve a written thesis, but those come in many forms. In the United Kingdom, they are usually monographs, long explanations of a student's work; in Scandinavia, science students typically top-and-tail a series of their publications. The accompanying oral examination — also called a viva voce or defence — can be a public lecture, a private discussion or not happen at all. There is wide variation across disciplines and from one institution to the next. “It is a complicated world in doctoral education. One format does not fit all,” says Maresi Nerad, founding director of the Center for Innovation and Research in Graduate Education at the University of Washington in Seattle.

This isn't necessarily a problem in itself, but some researchers worry that the decades-old doctoral assessment system is showing strain. Time-pressured examiners sometimes lack training and preparation for PhD assessments, which can lead to lack of rigour. “Two or three examiners come together to go through the thesis in a perfunctory way. They tick the boxes, everyone is happy, and then a PhD walks away,” says Jeremy Farrar, director of the biomedical research charity the Wellcome Trust in London.

Farrar, like other scientists, suspects that the PhD assessment is not keeping up with the times . Single-author tomes seem outdated when much of research has become a multidisciplinary, team endeavour. Research is becoming more open, but PhD assessments can lack transparency: vivas are sometimes held behind closed doors. Some PhD theses languish, little-used, on office shelves or in archives. “We're seeing some students who are still submitting paper theses to us — they don't have electronic theses yet,” says Austin McLean, director of scholarly communication and dissertation publishing at ProQuest in Ann Arbor, Michigan, which has the largest database of PhD theses in the world. What's more, little attention is given in the PhD assessment to soft skills such as management, entrepreneurship and teamwork, even though these are an essential part of life beyond the PhD, and students are increasingly leading that life outside academia . “The assessment of the PhD hasn't been updated to fit the modern definition of a PhD,” Farrar says.

phd thesis meaning

“There are a lot of pressures to make changes to the thesis,” says Suzanne Ortega, president of the Council of Graduate Schools in Washington DC, one of a number of groups discussing the issue. The council organized a workshop in January this year called Future of the PhD Dissertation, and in March, the Australian Council of Learned Academies (ACOLA) in Melbourne examined changes to the thesis as part of a review on researcher training. Some scientists and education experts welcome the attention. “I don't think the current model for thesis examination is ideal, but there are positive movements towards changing it,” says Inger Mewburn, director of research training at ANU and editor of the blog The Thesis Whisperer, which is dedicated to those completing a thesis.

Passing the test

Academics agree about one thing regarding the PhD assessment — its aim. The traditional goal is to demonstrate the candidate's ability to conduct independent research on a novel concept and to communicate the results in an accessible way. Where the academics differ is on how best to achieve that goal.

Shirley Tilghman, a molecular biologist and former president of Princeton University in New Jersey, sees merit in the monograph form of the thesis. It demonstrates scholarly ability by requiring students to “frame the historical context of a problem, describe in detail the purpose and execution and then come to a credible conclusion”, she says.

phd thesis meaning

But should the thesis include academic publications, too? That's the norm at the Karolinska Institute in Stockholm, Sweden, where most theses are a compilation of the student's original papers, along with a relatively short discussion, perhaps 50 pages long. The rationale is that publishing should be part of training because it better equips students for academic life and securing jobs.

Some students who complete a monograph end up wishing that they had spent more time on writing papers. James Lewis successfully defended his physics PhD at Imperial College London in October 2015, but he thinks that his one published paper landed him his postdoc at NASA's Goddard Space Flight Center in Greenbelt, Maryland. “The job market for postdoc positions is very competitive,” he says, “so if you can get a paper published during your PhD then you're helping yourself.” While he waits to start, Lewis is spending his days writing papers based on his research . “I'm wondering: would it not have been better to write these instead of the thesis, which took me five months to write?”

phd thesis meaning

But others argue that the pressure to publish could rob PhD students of valuable parts of their studies, such as the time to shape their research path and to think creatively and independently . “The PhD might become driven by papers only,” says Farrar. “Students might end up spending their time focusing only on what papers they can produce, then staple them together with a summary and they're done — adding to the sense that the whole scientific enterprise is a paper factory rather than an exploration.”

phd thesis meaning

Long is working at ANU towards a thesis-by-publication: she's written and submitted one paper and has started on a second. But she's struggling. “I am finding this one much harder to write, mostly because it isn't as new or exciting as the previous one,” she says. What's more, her strategy depends on things at least partly outside her control — on her PhD generating enough complete studies for publication and on a reasonably timely peer-review process.

Completed PhD theses are typically stored in university libraries — but that doesn't mean that they are read or used. Some 60% of submissions to the ProQuest database fall under the category of science, technology or mathematics, but they are the ones that are accessed least. “We think this is because the communication is more journal-focused,” says McLean. Scientists do tend to keep a copy of their theses in their office or lab for use by students and colleagues. Neil Curson, a physicist at the London Centre for Nanotechnology, says that his PhD, written more than 20 years ago, is still consulted by his students when they come into his lab. Many theses, however, end up collecting dust.

Viva la viva

Whatever form the thesis takes, it has to be assessed — in most countries, by a panel of experts, and often involving an oral exam. But the viva “doesn't have the same level of consistency as the written form of examination”, says Allyson Holbrook, an education researcher at Australia's University of Newcastle. In Israel, the viva is optional and very few students choose to have one; in the Netherlands, it is formal and ceremonial; in the United Kingdom, it's typically a private affair with two or three examiners; and in Australia, it's hardly performed at all. “One hundred per cent of the doctoral examination is about the thesis here,” says Holbrook. That's largely because, historically, there weren't enough experts in the country to examine the work in person and it was costly to fly them in, she says.

phd thesis meaning

Holbrook and her research team published a study last year that compared the assessment methods used in Australia with those in New Zealand and the United Kingdom (T. Lovat et al. Higher Ed. Rev. 47, 5–23; 2015). They concluded that doing an oral defence rarely changed the result, and that the thesis itself was the “determinative step” of passing. The review on Australian research training published in March didn't support adding a viva either, but it did recommend a move towards more continuous assessment of a student, rather than waiting until the end of the training.

Some researchers see problems with the viva. It's not uncommon for nerves to get the better of a student, and for them to freeze in front of their audience, however small it is. Examiners could worsen the situation by asking very difficult questions, says David Bogle, a chemical engineer at University College London. “There are cases where undue pressure is placed on the candidate by the examiners. This shouldn't be allowed.”

Trial by error

Most researchers don't support a global standard for the PhD assessment. A one-size-fits-all approach would be impossible to implement, they say, and the type of assessment — be it continuous appraisal, written thesis or oral exam — should depend on discipline, project, student, supervisor and institution. “If you take away the variability in assessment and form of the thesis then you lose all creativity and innovation from the PhD,” Nerad says.

But many feel that the system could be improved — by making the thesis shorter, for one. Data from ProQuest, which stores 4 million theses, show that the average length of biology, chemistry and physics PhDs soared to nearly 200 pages between 1945 and 1990. That could be because students are analysing more complex questions, performing longer literature reviews and using increasingly complicated methods that require lengthier explanations (see 'The expanding thesis'). “It's unnecessary to have such a long thesis,” says Farrar, who recently assessed one such tome. “'The thicker my PhD, the better' has become a myth in the PhD community, and is taking it down the wrong direction.”

'The thicker my PhD, the better' has become a myth in the PhD community.

Farrar says that a slimmed-down document would be more appropriate. That could follow the concise format of a research paper, and include a review of the field, then short chapters on methods, analysis and discussion. “It would be more succinct and focused. And the examiners will probably read it all.”

That isn't necessarily the case now. Examiners have to find time to review theses in between research, teaching, grant-writing and many other demands. “Something has to give, and what gives is the amount of time spent on any of those individual tasks,” says Farrar. That means an examiner might skim through years of a PhD student's work in just a couple of hours. “I think we owe it to the students to examine them properly and help prepare them for their future careers,” he says.

The modern thesis

One way to better reflect the team-based nature of science would be to write a joint thesis, an approach that has been used in arts and humanities graduate education in the past. However, this can make it difficult to assign credit. “If you have worked on a collaborative dissertation, a potential employer might struggle to see whether you really are an independent thinker or could you read a lead a research project,” says Ortega.

phd thesis meaning

There is another matter to wrestle with — the fact that half of science PhD graduates in the United States are choosing careers outside of academia , according to the National Science Foundation's 2014 Survey of Earned Doctorates. “Under those conditions, the standard assessment should include the skills in what they'll need when going on to future careers,” says Michael Teitelbaum, labour economist at Harvard Law School.

Increasingly, institutions offer courses to PhD students in skills such as teamwork, management and research ethics, but these skills aren't usually assessed formally. The viva would be one opportunity to do so, perhaps by seeing how students react to various scenarios. Alternatively, as the ACOLA review suggested, PhD candidates could accrue credits in transferable skills through professional-development activities that are recorded in a portfolio. “You can't just assume that if you throw them into an environment they will meaningfully learn from that environment,” says psychologist Michael Mumford, a director of the Center for Applied Social Research at the University of Oklahoma in Norman. “We need exams that ask students to deal with both real-world problems as well as ambiguous academic problems.”

Farrar thinks that a change in emphasis could help. Rather than thinking of the thesis and viva as an exam, it should be viewed as the culmination of a long project. “You need to look at the PhD in the context of those four years of research, not just as revision for one big test.”

phd thesis meaning

Mewburn stresses that whatever form the assessment takes, it should focus more on the individual than on their work. “My preference is to assess the researcher,” she says, “but we haven't developed the tools and curriculum to do that.”

Few failures

It's difficult to find figures on how many students fail their PhD if they get to the point of submitting a thesis but, anecdotally, scientists say that few flunk it outright. More often, students are sent away with minor or major corrections that have to be completed before the PhD is awarded.

There are theories that few students fail because universities want to keep their number of graduates high for the rankings. But most researchers dispute this, and point to other reasons. One is that weak students are likely to have dropped out before they reach the final assessment. Furthermore, supervisors and the supporting institutions typically work hard — through regular reviews and assessments — to make sure that a candidate and project are of a sufficient standard before the thesis is submitted. “You haven't done your due diligence as a university if a student is getting to a stage where they are sending out theses that are going to fail,” says Simon Hay, a global-health researcher at the University of Washington.

phd thesis meaning

Nerad sees no need to reform the final PhD assessment. For her, the problem lies with the variability of graduate education as a whole. “Now that research is becoming more globalized, the PhD needs to be too.” That process is under way, Nerad says: the pressures of economic globalization, international policies and national drives to house world-class universities have led to a more standardized PhD experience across the world.

During her tenure as Princeton's president, Tilghman was often asked if there was a perfect way to assess a PhD course. Not many liked her answer — that she could only really evaluate a student at the 25-year reunion. “In the end, the only way you can assess it is whether the graduates of the programme become successful scientists. If they do, you've done a good job. If they haven't, you haven't.”

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Back to the thesis 2016-Jul-06

The past, present and future of the PhD thesis 2016-Jul-06

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How not to deal with the PhD glut 2014-Oct-22

Education: The PhD factory 2011-Apr-20

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phd thesis meaning

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Know the Difference: PhD Dissertation vs. Thesis

PhD thesis vs PhD dissertation

One of the biggest turning points of any PhD student’s journey is the submission of a research writing project in the form of either a PhD thesis or a PhD dissertation. From an academic perspective, the thesis/dissertation is in many ways a major indicator of the abilities and expertise that you have gained as a doctoral candidate.

The mere task of understanding the requirements and compiling a PhD dissertation/thesis is in itself huge. However, what may be confusing to understand, especially if you are just embarking upon your doctoral journey, is the difference between thesis and dissertation.

Table of Contents

Similarities in phd dissertation vs. thesis, 1. understanding differences in the meaning of the two terms, 2. difference between thesis and dissertation based upon geographical location, 3. understanding a difference in content for a phd thesis v/s phd dissertation.

These two terms are often used interchangeably when referring to doctoral studies as there are a number of similarities between them:

  • The very first commonality between thesis and dissertation is that the submission of both is considered to be an official culmination of the doctoral work of the candidate.
  • Both the thesis and the dissertation demonstrate the ability of a doctoral candidate to effectively communicate their process of resolving a problem statement.
  • The thesis and dissertation both test a candidate’s ability toward analytical reasoning and critical thinking , while showcasing his/her expertise in a particular subject area.
  • Both the thesis and the dissertation are evaluated by an official review committee consisting of internal as well as external examiners who are experts in the specific subject area being explored in the doctoral study.
  • Based upon the reviews of the committee members, both of these documents are then subject to changes and re-submission as required .
  • Lastly, both a thesis and a dissertation can be treated as official publications that may be available as resources in the university library .

Owing to the above-mentioned similarities, the confusion between the correct usage of dissertation vs. thesis is quite understandable. In order to ensure the proper usage of these two terms, it’s crucial to understand the differences in a PhD thesis v/s PhD dissertation. Here are some quick pointers that may be useful.

Differences between thesis and dissertation

Since most academic institutions will continue to use these terms interchangeably, it is imperative that you confirm the intricate details regarding the expected structure of a PhD thesis/dissertation with your respective institution. However, for now, we hope that the above article helps in clarifying some of the major doubts that you may have had regarding a PhD thesis v/s dissertation.

In order to better understand the meaning of thesis vs dissertation, let us go back to the origin of the terms. The term ‘thesis’ originates from the Greek word ‘tithenai’, which means ‘to place a proposition’, while the term ‘dissertation’ has a Latin origin, which essentially means ‘disserere’/’dissertare’, i.e., ‘to (continue to) examine and discuss’. 1 To simplify further, a thesis by itself may simply represent an argument that you put forth and describe in depth, while a dissertation may represent a written summary/discussion of a particular work. 2

phd thesis meaning

In countries/institutions that follow the British education system, it is common to term the final doctoral research writing project as a PhD thesis, while the countries/institutions that follow the American education system prefer to call it a PhD dissertation. In case you are unsure which education system is followed by your institution, it may be a good idea to verify this with the respective personnel, so that you can plan your doctoral journey effectively.

While the above two points may be useful to understand the differences between thesis and dissertation on a surface level, as a PhD student it is crucial for you to understand the deeper differences in the content and the type of work that goes into each of them. Let us do this by revisiting the differences in the origin of the two terms: ‘dissertare’ or to discuss (dissertation) v/s ‘to place a proposition’ (thesis). In my experience, the content of a PhD dissertation often comprises peer-reviewed publications that are published by the doctoral candidate during their doctoral work, along with supplementary chapters.

On the other hand, while compiling a PhD thesis, a doctoral candidate may need to describe the doctoral work in detail with the help of distinct chapters comprising: abstract, introduction, literature review, methodology, results, discussion, conclusion and bibliography/references. Thus, the main difference between thesis and dissertation, lies in the way the written document is being presented although the doctoral work done by the candidate will mostly remain the same .

References:

1.         What is the Difference Between a Dissertation and a Thesis? | Postgrad.com. https://www.postgrad.com/advice/exams/dissertation-and-theses/difference-between-a-dissertation-and-a-thesis/

2.         The PhD Thesis | FindAPhD.com. www.FindAPhD.com https://www.findaphd.com/guides/phd-thesis.

The time it takes to write a PhD thesis vs. dissertation can vary depending on several factors, including the research topic, the scope of the project, the research methodology, and the specific requirements of the academic program. However, in general, a dissertation is typically longer and more comprehensive than a thesis, and therefore may take longer to complete.

A dissertation for doctoral programs is typically required after the completion of required coursework, passing comprehensive exams, and hitting any other specific milestones outlined by the program. This means PhD students usually devote years in developing their dissertation, which demonstrates your ability to conduct independent research and make original contributions to the field

A thesis statement is used in academic writing to provide a concise summary of the main argument or point being made in an essay or paper. It should be used at the introduction at the beginning of the paper to guide the reader and provide focus for the writing. A thesis statement can be used in academic essays, research papers, analytical papers and literature reviews and presents readers with a clear roadmap of the research being conducted.

Paperpal is a comprehensive AI writing toolkit that helps students and researchers achieve 2x the writing in half the time. It leverages 21+ years of STM experience and insights from millions of research articles to provide in-depth academic writing, language editing, and submission readiness support to help you write better, faster.  

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Related Reads:

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  • How to Write a Research Paper Introduction (with Examples)
  • Academic Writing Groups: 5 Benefits for Researchers
  • What is Peer Review: Importance and Types of Peer Review

Duplicate Publications: How to Avoid Overlapping Publications in Research

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Writing a Postgraduate or Doctoral Thesis: A Step-by-Step Approach

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phd thesis meaning

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A key characteristic looked after by postgraduate or doctoral students is how they communicate and defend their knowledge. Many candidates believe that there is insufficient instruction on constructing strong arguments. The thesis writing procedure must be meticulously followed to achieve outstanding results. It should be well organized, simple to read, and provide detailed explanations of the core research concepts. Each section in a thesis should be carefully written to make sure that it transitions logically from one to the next in a smooth way and is free of any unclear, cluttered, or redundant elements that make it difficult for the reader to understand what is being tried to convey. In this regard, students must acquire the information and skills to successfully create a strong and effective thesis. A step-by-step description of the thesis/dissertation writing process is provided in this chapter.

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Fortunato Senatore

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Nayak, U.Y., Hoogar, P., Mutalik, S., Udupa, N. (2023). Writing a Postgraduate or Doctoral Thesis: A Step-by-Step Approach. In: Jagadeesh, G., Balakumar, P., Senatore, F. (eds) The Quintessence of Basic and Clinical Research and Scientific Publishing. Springer, Singapore. https://doi.org/10.1007/978-981-99-1284-1_48

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  • What Is a Thesis? | Ultimate Guide & Examples

What Is a Thesis? | Ultimate Guide & Examples

Published on 15 September 2022 by Tegan George . Revised on 5 December 2023.

Structure of a Thesis

A thesis is a type of research paper based on your original research. It is usually submitted as the final step of a PhD program in the UK.

Writing a thesis can be a daunting experience. Indeed, alongside a dissertation , it is the longest piece of writing students typically complete. It relies on your ability to conduct research from start to finish: designing your research , collecting data , developing a robust analysis, drawing strong conclusions , and writing concisely .

Thesis template

You can also download our full thesis template in the format of your choice below. Our template includes a ready-made table of contents , as well as guidance for what each chapter should include. It’s easy to make it your own, and can help you get started.

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Table of contents

Thesis vs. thesis statement, how to structure a thesis, acknowledgements or preface, list of figures and tables, list of abbreviations, introduction, literature review, methodology, reference list, proofreading and editing, defending your thesis, frequently asked questions about theses.

You may have heard the word thesis as a standalone term or as a component of academic writing called a thesis statement . Keep in mind that these are two very different things.

  • A thesis statement is a very common component of an essay, particularly in the humanities. It usually comprises 1 or 2 sentences in the introduction of your essay , and should clearly and concisely summarise the central points of your academic essay .
  • A thesis is a long-form piece of academic writing, often taking more than a full semester to complete. It is generally a degree requirement to complete a PhD program.
  • In many countries, particularly the UK, a dissertation is generally written at the bachelor’s or master’s level.
  • In the US, a dissertation is generally written as a final step toward obtaining a PhD.

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The final structure of your thesis depends on a variety of components, such as:

  • Your discipline
  • Your theoretical approach

Humanities theses are often structured more like a longer-form essay . Just like in an essay, you build an argument to support a central thesis.

In both hard and social sciences, theses typically include an introduction , literature review , methodology section ,  results section , discussion section , and conclusion section . These are each presented in their own dedicated section or chapter. In some cases, you might want to add an appendix .

Thesis examples

We’ve compiled a short list of thesis examples to help you get started.

  • Example thesis #1:   ‘Abolition, Africans, and Abstraction: the Influence of the “Noble Savage” on British and French Antislavery Thought, 1787-1807’ by Suchait Kahlon.
  • Example thesis #2: ‘”A Starving Man Helping Another Starving Man”: UNRRA, India, and the Genesis of Global Relief, 1943-1947’ by Julian Saint Reiman.

The very first page of your thesis contains all necessary identifying information, including:

  • Your full title
  • Your full name
  • Your department
  • Your institution and degree program
  • Your submission date.

Sometimes the title page also includes your student ID, the name of your supervisor, or the university’s logo. Check out your university’s guidelines if you’re not sure.

Read more about title pages

The acknowledgements section is usually optional. Its main point is to allow you to thank everyone who helped you in your thesis journey, such as supervisors, friends, or family. You can also choose to write a preface , but it’s typically one or the other, not both.

Read more about acknowledgements Read more about prefaces

Prevent plagiarism, run a free check.

An abstract is a short summary of your thesis. Usually a maximum of 300 words long, it’s should include brief descriptions of your research objectives , methods, results, and conclusions. Though it may seem short, it introduces your work to your audience, serving as a first impression of your thesis.

Read more about abstracts

A table of contents lists all of your sections, plus their corresponding page numbers and subheadings if you have them. This helps your reader seamlessly navigate your document.

Your table of contents should include all the major parts of your thesis. In particular, don’t forget the the appendices. If you used heading styles, it’s easy to generate an automatic table Microsoft Word.

Read more about tables of contents

While not mandatory, if you used a lot of tables and/or figures, it’s nice to include a list of them to help guide your reader. It’s also easy to generate one of these in Word: just use the ‘Insert Caption’ feature.

Read more about lists of figures and tables

If you have used a lot of industry- or field-specific abbreviations in your thesis, you should include them in an alphabetised list of abbreviations . This way, your readers can easily look up any meanings they aren’t familiar with.

Read more about lists of abbreviations

Relatedly, if you find yourself using a lot of very specialised or field-specific terms that may not be familiar to your reader, consider including a glossary . Alphabetise the terms you want to include with a brief definition.

Read more about glossaries

An introduction sets up the topic, purpose, and relevance of your thesis, as well as expectations for your reader. This should:

  • Ground your research topic , sharing any background information your reader may need
  • Define the scope of your work
  • Introduce any existing research on your topic, situating your work within a broader problem or debate
  • State your research question(s)
  • Outline (briefly) how the remainder of your work will proceed

In other words, your introduction should clearly and concisely show your reader the “what, why, and how” of your research.

Read more about introductions

A literature review helps you gain a robust understanding of any extant academic work on your topic, encompassing:

  • Selecting relevant sources
  • Determining the credibility of your sources
  • Critically evaluating each of your sources
  • Drawing connections between sources, including any themes, patterns, conflicts, or gaps

A literature review is not merely a summary of existing work. Rather, your literature review should ultimately lead to a clear justification for your own research, perhaps via:

  • Addressing a gap in the literature
  • Building on existing knowledge to draw new conclusions
  • Exploring a new theoretical or methodological approach
  • Introducing a new solution to an unresolved problem
  • Definitively advocating for one side of a theoretical debate

Read more about literature reviews

Theoretical framework

Your literature review can often form the basis for your theoretical framework, but these are not the same thing. A theoretical framework defines and analyses the concepts and theories that your research hinges on.

Read more about theoretical frameworks

Your methodology chapter shows your reader how you conducted your research. It should be written clearly and methodically, easily allowing your reader to critically assess the credibility of your argument. Furthermore, your methods section should convince your reader that your method was the best way to answer your research question.

A methodology section should generally include:

  • Your overall approach ( quantitative vs. qualitative )
  • Your research methods (e.g., a longitudinal study )
  • Your data collection methods (e.g., interviews or a controlled experiment
  • Any tools or materials you used (e.g., computer software)
  • The data analysis methods you chose (e.g., statistical analysis , discourse analysis )
  • A strong, but not defensive justification of your methods

Read more about methodology sections

Your results section should highlight what your methodology discovered. These two sections work in tandem, but shouldn’t repeat each other. While your results section can include hypotheses or themes, don’t include any speculation or new arguments here.

Your results section should:

  • State each (relevant) result with any (relevant) descriptive statistics (e.g., mean , standard deviation ) and inferential statistics (e.g., test statistics , p values )
  • Explain how each result relates to the research question
  • Determine whether the hypothesis was supported

Additional data (like raw numbers or interview transcripts ) can be included as an appendix . You can include tables and figures, but only if they help the reader better understand your results.

Read more about results sections

Your discussion section is where you can interpret your results in detail. Did they meet your expectations? How well do they fit within the framework that you built? You can refer back to any relevant source material to situate your results within your field, but leave most of that analysis in your literature review.

For any unexpected results, offer explanations or alternative interpretations of your data.

Read more about discussion sections

Your thesis conclusion should concisely answer your main research question. It should leave your reader with an ultra-clear understanding of your central argument, and emphasise what your research specifically has contributed to your field.

Why does your research matter? What recommendations for future research do you have? Lastly, wrap up your work with any concluding remarks.

Read more about conclusions

In order to avoid plagiarism , don’t forget to include a full reference list at the end of your thesis, citing the sources that you used. Choose one citation style and follow it consistently throughout your thesis, taking note of the formatting requirements of each style.

Which style you choose is often set by your department or your field, but common styles include MLA , Chicago , and APA.

Create APA citations Create MLA citations

In order to stay clear and concise, your thesis should include the most essential information needed to answer your research question. However, chances are you have many contributing documents, like interview transcripts or survey questions . These can be added as appendices , to save space in the main body.

Read more about appendices

Once you’re done writing, the next part of your editing process begins. Leave plenty of time for proofreading and editing prior to submission. Nothing looks worse than grammar mistakes or sloppy spelling errors!

Consider using a professional thesis editing service to make sure your final project is perfect.

Once you’ve submitted your final product, it’s common practice to have a thesis defense, an oral component of your finished work. This is scheduled by your advisor or committee, and usually entails a presentation and Q&A session.

After your defense, your committee will meet to determine if you deserve any departmental honors or accolades. However, keep in mind that defenses are usually just a formality. If there are any serious issues with your work, these should be resolved with your advisor way before a defense.

The conclusion of your thesis or dissertation shouldn’t take up more than 5-7% of your overall word count.

When you mention different chapters within your text, it’s considered best to use Roman numerals for most citation styles. However, the most important thing here is to remain consistent whenever using numbers in your dissertation .

If you only used a few abbreviations in your thesis or dissertation, you don’t necessarily need to include a list of abbreviations .

If your abbreviations are numerous, or if you think they won’t be known to your audience, it’s never a bad idea to add one. They can also improve readability, minimising confusion about abbreviations unfamiliar to your reader.

A thesis or dissertation outline is one of the most critical first steps in your writing process. It helps you to lay out and organise your ideas and can provide you with a roadmap for deciding what kind of research you’d like to undertake.

Generally, an outline contains information on the different sections included in your thesis or dissertation, such as:

  • Your anticipated title
  • Your abstract
  • Your chapters (sometimes subdivided into further topics like literature review, research methods, avenues for future research, etc.)

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What is a Ph.D. Dissertation?

[I wrote this in 1993 as a letter to a student concerning a draft of his dissertation. In 2003 I edited it to remove some specific references to the student and present it as a small increment to the information available to my grad students. In 2023 I made small edits for grammar and to expand coverage.--spaf]

Let me start by reviewing some things that may seem obvious:

  • Your dissertation is part of the requirements for a PhD. The research, theory, experimentation, et al. also contribute. One does not attempt to capture everything in one's dissertation.
  • The dissertation is a technical work that documents and proves one's thesis. It is intended for a technical audience and must be clear and complete but not necessarily exhaustively comprehensive. Also note -- experimental data, if used, is not the proof -- it is evidence. The proof is presented as an analysis and critical presentation. Generally, every statement in your dissertation must be common knowledge, supported by citation to technical literature, or original results proved by the candidate (you). Each of those statements must directly relate to the proof of the thesis, or else they are unnecessary.

Let's revisit the idea of the thesis itself. It is a hypothesis, a conjecture, or a theorem. The dissertation is a formal, stylized document used to argue your thesis. The thesis must be significant, original (no one has yet demonstrated it to be true), and it must extend the state of scientific knowledge.

The first thing you need to do is to come up with no more than three sentences that express your thesis. Your committee must agree that your statements form a valid thesis statement. You, too, must be happy with the statement -- it should be what you will tell anyone if they ask you what your thesis is (few people will want to hear an hour's presentation as a response).

Once you have a thesis statement, you can begin developing the dissertation. The abstract, for instance, should be a one-page description of your thesis and how you present the proof of it. The abstract should summarize the results of the thesis and should stress the contributions to science made thereby.

Perhaps the best way to understand how an abstract should look would be to examine the abstracts of several dozen dissertations that have already been accepted. Our university library has a collection of them. This is a good approach to see how an entire dissertation is structured and presented. MIT Press has published the ACM doctoral dissertation award series for decades, so you may find some of those to be good examples to read -- they should be in any large technical library.

The dissertation itself should be structured into 4 to 6 chapters. The following is one commonly-used structure:

  • Introduction. Provide an introduction to the basic terminology, cite appropriate background work, and briefly discuss related work that has already covered aspects of the problem.
  • Abstract model. Discuss an abstract model of what you are trying to prove. This chapter should not discuss any specific implementation (see below)
  • Validation of model/proof of theorems. This is a chapter showing proof of the model. It could be a set of proofs or a discussion of the construction and validation of a model or simulation to gather supporting data.
  • Measurements/data. This would present data collected from actual use, simulations, or other sources. The presentation would include analysis to show support for the underlying thesis.
  • Additional results. In some work, there may be secondary confirmation studies, or it might be the case that additional significant results are collected along the way to the proof of the central thesis. These would be presented here.
  • Conclusions and future work. This is where the results are all tied together and presented. Limitations, restrictions, and special cases should be clearly stated here, along with the results. Some extensions as future work may also be described.

Let's look at these in a little more detail

Chapter I, Introduction. Here, you should clearly state the thesis and its importance. This is also where you define terms and other concepts used elsewhere. There is no need to write 80 pages of background on your topic here. Instead, you can cover almost everything by saying: "The terminology used in this work matches the definitions given in [citation, citation] unless noted otherwise." Then, cite some appropriate works that give the definitions you need. The progress of science is that we learn and use the work of others (with appropriate credit). Assume you have a technically literate readership familiar with (or able to find) standard references. Do not reference popular literature or WWW sites if you can help it (this is a matter of style more than anything else -- you want to cite articles in refereed conferences and journals, if possible, or in other theses).

Also, in the introduction, you want to survey any related work that attempted something similar to your own or has a significant supporting role in your research. This should refer only to published references. You cite the work in the references, not the researchers themselves. E.g., "The experiments described in [citation] explored the foo and bar conditions, but did not discuss the further problem of baz, the central point of this work." You should not make references such as this: "Curly, Moe, and Larry all believed the same in their research [CML53]" because you do not know what they believed or thought -- you only know what the paper states. Every factual statement you make must have a specific citation tied to it in this chapter, or else it must be common knowledge (don't rely on this too much).

Chapter II. Abstract Model. Your results are to be of lasting value. Thus, the model you develop and write about (and indeed, that you defend) should have lasting value. Thus, you should discuss a model not based on Windows, Linux, Ethernet, PCMIA, or any other technology. It should be generic and capture all the details necessary to overlay the model on likely environments. You should discuss the problems, parameters, requirements, necessary and sufficient conditions, and other factors here. Consider that 20 years ago (ca 1980), the common platform was a Vax computer running VMS or a PDP-11 running Unix version 6, yet well-crafted theses of the time are still valuable today. Will your dissertation be valuable 20+ years from now (ca 2050), or have you referred to technologies that will be of only historical interest?

This model is tough to construct but is the heart of the scientific part of your work. This is the lasting part of the contribution, and this is what someone might cite 50 years from now when we are all using MS Linux XXXXP on computers embedded in our wrists with subspace network links!

Chapters III & IV, Proof.There are basically three proof techniques that I have seen used in a computing dissertation, depending on the thesis topic. The first is analytic, where one takes the model or formulae and shows, using formal manipulations, that the model is sound and complete. A second proof method is stochastic, using statistical methods and measurements to show that something is true in the anticipated cases.

  • clearly showing how your implementation model matches the conditions of your abstract model,
  • describing all the variables and why you set them as you do,
  • accounting for confounding factors, and
  • showing the results.

Chapter V. Additional results. This may be folded into Chapter III in some theses or multiple chapters in a thesis with many parts (as in a theory-based thesis). This may be where you discuss the effects of technology change on your results. This is also a place where you may wish to point out significant results that you obtained while seeking to prove your central thesis but which are not supportive of the thesis. Often, such additional results are published in a separate paper.

Chapter VI. Conclusions and Future Work. This is where you discuss what you found from your work, incidental ideas and results that were not central to your thesis but of value nonetheless (if you did not have them in Chapter V), and other results. This chapter should summarize all the important results of the dissertation --- note that this is the only chapter many people will ever read, so it should convey all the important results.

This is also where you should outline some possible future work that can be done in the area. What are some open problems? What are some new problems? What are some significant variations open to future inquiry?

Appendices usually are present to hold mundane details that are not published elsewhere but are critical to the development of your dissertation. This includes tables of measurement results, configuration details of experimental testbeds, limited source code listings of critical routines or algorithms, etc. It is not appropriate to include lists of readings by topic, lists of commercial systems, or other material that does not directly support the proof of your thesis.

Here are some more general hints to keep in mind as you write/edit:

  • Adverbs should generally not be used -- instead, use something precise. For example, do not say that something "happens quickly." How fast is quickly? Is it relative to CPU speeds? Network speeds? Does it depend on connectivity, configuration, programming language, OS release, etc? What is the standard deviation?
  • As per the above, the use of the words "fast," "slow," "perfect," "soon," "ideal," "lots of," and related should all be avoided. So should "clearly," "obviously," "simple," "like," "few," "most," "large," et al.
  • What you are writing is scientific fact. Judgments of aesthetics, ethics, personal preference, and the like should be in the conclusions chapter, if they should be anywhere at all. With that in mind, avoid the use of words such as "good," "bad," "best," and any similar discussion. Also, avoid stating "In fact," "Actually," "In reality," and any similar construct -- everything you are writing must be factual, so there is no need to state such things. If you feel compelled to use one of these constructs, then carefully evaluate what you are saying to ensure you are not injecting relative terms, opinions, value judgments, or other items inappropriate for a dissertation.
  • Computers and networks do not have knees, so poor performance cannot bring them to something they do not have. They also don't have hands, so "On the one hand..." is not good usage. Programs don't perform conscious thought (nor do their underlying computers), so your system does not "think" that it has seen a particular type of traffic. Generalizing from this, do not anthropomorphize your IT components!
  • Avoid mention of time and environment. "Today's computers" are antiques far sooner than you think. Your thesis should still be true many years from now. If a particular time or interval is necessary, be explicit, as in "Between 1905 and 1920" rather than "Over the last 15 years." (See the difference, given some distance in time?)
  • Be sure that any scientist or mathematician would recognize something you claim as proof.
  • Focus on the results and not the methodology. The methodology should be clearly described but not the central topic of your discussion in chapters III & IV
  • Keep concepts and instances separate. An algorithm is not the same as a program that implements it. A protocol is not the same as the realization of it; a reference model is not the same as a working example, and so on.

As a rule of thumb, a CS dissertation should probably be longer than 100 pages but less than 160. Anything outside that range should be carefully examined with the above points in mind.

Keep in mind that you -- the Ph.D. candidate -- are expected to become the world's foremost expert on your topic area. That topic area should not be unduly broad but must be big enough to be meaningful. Your advisor and committee members are not supposed to know more about the topic than you do -- not individually, at least. Your dissertation is supposed to explain your findings and, along with the defense, demonstrate your mastery of the area in which you are now the leading expert. That does not mean writing everything you know -- it means writing enough about the most important points that others can agree with your conclusions.

Last of all, don't fall into the trap that ties up many candidates and causes some of them to flame out before completion: your thesis does not need to be revolutionary. It simply needs to be an incremental advancement in the field. Few Ph.D. dissertations have ever had a marked impact on the field. Instead, it is the author's set of publications and products of the author that may change the field.

If your dissertation is like most, it will only be read by your committee and some other Ph.D. candidates seeking to build on your work. As such, it does not need to be a masterwork of literature, nor does it need to solve a long-standing problem in computing. It merely needs to be correct, to be significant in the judgment of your committee, and it needs to be complete. We will all applaud when you change the world after graduation. And at that, you will find that many well-known scientists in CS have made their careers in areas different from their dissertation topic. The dissertation is proof that you can find and present original results; your career and life after graduation will demonstrate the other concerns you might have about making an impact.

So get to work!

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  • Manuscript Preparation

Know How to Structure Your PhD Thesis

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Table of Contents

In your academic career, few projects are more important than your PhD thesis. Unfortunately, many university professors and advisors assume that their students know how to structure a PhD. Books have literally been written on the subject, but there’s no need to read a book in order to know about PhD thesis paper format and structure. With that said, however, it’s important to understand that your PhD thesis format requirement may not be the same as another student’s. The bottom line is that how to structure a PhD thesis often depends on your university and department guidelines.

But, let’s take a look at a general PhD thesis format. We’ll look at the main sections, and how to connect them to each other. We’ll also examine different hints and tips for each of the sections. As you read through this toolkit, compare it to published PhD theses in your area of study to see how a real-life example looks.

Main Sections of a PhD Thesis

In almost every PhD thesis or dissertation, there are standard sections. Of course, some of these may differ, depending on your university or department requirements, as well as your topic of study, but this will give you a good idea of the basic components of a PhD thesis format.

  • Abstract : The abstract is a brief summary that quickly outlines your research, touches on each of the main sections of your thesis, and clearly outlines your contribution to the field by way of your PhD thesis. Even though the abstract is very short, similar to what you’ve seen in published research articles, its impact shouldn’t be underestimated. The abstract is there to answer the most important question to the reviewer. “Why is this important?”
  • Introduction : In this section, you help the reviewer understand your entire dissertation, including what your paper is about, why it’s important to the field, a brief description of your methodology, and how your research and the thesis are laid out. Think of your introduction as an expansion of your abstract.
  • Literature Review : Within the literature review, you are making a case for your new research by telling the story of the work that’s already been done. You’ll cover a bit about the history of the topic at hand, and how your study fits into the present and future.
  • Theory Framework : Here, you explain assumptions related to your study. Here you’re explaining to the review what theoretical concepts you might have used in your research, how it relates to existing knowledge and ideas.
  • Methods : This section of a PhD thesis is typically the most detailed and descriptive, depending of course on your research design. Here you’ll discuss the specific techniques you used to get the information you were looking for, in addition to how those methods are relevant and appropriate, as well as how you specifically used each method described.
  • Results : Here you present your empirical findings. This section is sometimes also called the “empiracles” chapter. This section is usually pretty straightforward and technical, and full of details. Don’t shortcut this chapter.
  • Discussion : This can be a tricky chapter, because it’s where you want to show the reviewer that you know what you’re talking about. You need to speak as a PhD versus a student. The discussion chapter is similar to the empirical/results chapter, but you’re building on those results to push the new information that you learned, prior to making your conclusion.
  • Conclusion : Here, you take a step back and reflect on what your original goals and intentions for the research were. You’ll outline them in context of your new findings and expertise.

Tips for your PhD Thesis Format

As you put together your PhD thesis, it’s easy to get a little overwhelmed. Here are some tips that might keep you on track.

  • Don’t try to write your PhD as a first-draft. Every great masterwork has typically been edited, and edited, and…edited.
  • Work with your thesis supervisor to plan the structure and format of your PhD thesis. Be prepared to rewrite each section, as you work out rough drafts. Don’t get discouraged by this process. It’s typical.
  • Make your writing interesting. Academic writing has a reputation of being very dry.
  • You don’t have to necessarily work on the chapters and sections outlined above in chronological order. Work on each section as things come up, and while your work on that section is relevant to what you’re doing.
  • Don’t rush things. Write a first draft, and leave it for a few days, so you can come back to it with a more critical take. Look at it objectively and carefully grammatical errors, clarity, logic and flow.
  • Know what style your references need to be in, and utilize tools out there to organize them in the required format.
  • It’s easier to accidentally plagiarize than you think. Make sure you’re referencing appropriately, and check your document for inadvertent plagiarism throughout your writing process.

PhD Thesis Editing Plus

Want some support during your PhD writing process? Our PhD Thesis Editing Plus service includes extensive and detailed editing of your thesis to improve the flow and quality of your writing. Unlimited editing support for guaranteed results. Learn more here , and get started today!

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Students at advanced levels of education have the desire to successfully write a Doctor of Philosophy (PhD) thesis. Basically, this type of writing demonstrates their expertise in a discipline. Also, it takes an extended period for the creation of a PhD paper because of its sophistication. Thus, the completion of a doctoral program is signified by a passing Ph.D. thesis, which depicts overarching interdisciplinary qualities.

The Defenition of PhD Thesis

A PhD thesis is a form of examination used for advanced degrees. For example, individuals in pursuit of doctorate degrees have to develop a thesis subjected to scrutiny by a committee of professors that judge its merit. In this case, students draft a thesis proposal that they present and defend to a select panel. After approval of the thesis proposal, the level of the panel’s participation may vary depending on the university’s PhD program structure. Then, people do not limit the length of a PhD paper. However, the author must ensure that the document contains a comprehensive exploration of a new approach. Also, the paper must contribute positively to the existing body of knowledge. Finally, a PhD work covers a clear understanding of previous studies. Thus, the doctorate is awarded after completion of a PhD paper to symbolize an individual’s mastery of content and research techniques.

PhD thesis

All doctorate program students must write a thesis that may assume different forms depending on the PhD model. For instance, the classical PhD model is based on the development of one ‘big book’ thesis that consists of integrated chapters with a word count ranging between 80,000-100,000. Basically, this approach does not involve much coursework. However, it focuses on thesis preparation throughout the program. Then, an alternative model is the taught PhD model that entails two stages: examinable coursework and a thesis comprised of at least four medium-length publishable papers. In turn, the PhD thesis has separate papers presumed to be the equivalent of the big book thesis. As a result, the authorship appears to be an essential concept of doctoral studies.

Differences in Disciplines

There are no substantial differences between PhD thesis papers developed for specific disciplines. For example, examiners tend to search for the presence of identical core qualities of a thesis regardless of the discipline. Basically, a PhD paper should attain a certain level of coherence, originality, and academic validity for it to pass a critical examination in any discipline. However, inconsistencies may arise due to the inadequacy of institutional criteria, vagueness in the desired level of contribution to existing knowledge, and examiners’ bias for personal assessment standards. In turn, the fluidity of examiners’ expectations causes slight differences in a thesis. Also, disciplinary demands modify the nature of a PhD thesis to a small extent.

Conclusion on PhD Thesis

The completion of the PhD thesis writing process precedes the attainment of a doctorate. Basically, research and authorship are fundamental skills for any doctorate holder. In this case, a PhD paper is not discipline-specific because examiners hold nearly identical assertions concerning its qualities. Thus, the writing of a PhD thesis is a unique learning experience. In turn, people may get thesis help .

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  1. What Is a PhD Thesis?

    A PhD thesis is a concentrated piece of original research which must be carried out by all PhD students in order to successfully earn their doctoral degree. The fundamental purpose of a thesis is to explain the conclusion that has been reached as a result of undertaking the research project. The typical PhD thesis structure will contain four ...

  2. What Is a Thesis?

    Revised on April 16, 2024. A thesis is a type of research paper based on your original research. It is usually submitted as the final step of a master's program or a capstone to a bachelor's degree. Writing a thesis can be a daunting experience. Other than a dissertation, it is one of the longest pieces of writing students typically complete.

  3. What Is a Dissertation?

    A dissertation is a long-form piece of academic writing based on original research conducted by you. It is usually submitted as the final step in order to finish a PhD program. Your dissertation is probably the longest piece of writing you've ever completed. It requires solid research, writing, and analysis skills, and it can be intimidating ...

  4. A Guide to Writing a PhD Thesis

    A PhD thesis is a work of original research all students are requiured to submit in order to succesfully complete their PhD. The thesis details the research that you carried out during the course of your doctoral degree and highlights the outcomes and conclusions reached. The PhD thesis is the most important part of a doctoral research degree ...

  5. What (Exactly) Is A Dissertation Or Thesis?

    A dissertation (or thesis) is a process. Okay, so now that you understand that a dissertation is a research project (which is testing your ability to undertake quality research), let's go a little deeper into what that means in practical terms. The best way to understand a dissertation is to view it as a process - more specifically a ...

  6. How To Write A Dissertation Or Thesis

    Craft a convincing dissertation or thesis research proposal. Write a clear, compelling introduction chapter. Undertake a thorough review of the existing research and write up a literature review. Undertake your own research. Present and interpret your findings. Draw a conclusion and discuss the implications.

  7. How to Write a Dissertation or Thesis Proposal

    When starting your thesis or dissertation process, one of the first requirements is a research proposal or a prospectus. It describes what or who you want to examine, delving into why, when, where, and how you will do so, stemming from your research question and a relevant topic. The proposal or prospectus stage is crucial for the development ...

  8. Ph.D. Dissertation Writing: A Short Guide

    A dissertation, also known as a doctoral thesis, is the final required part of completing a student's doctoral study.Undertaken after a student completes coursework and passes a comprehensive examination, the dissertation is the final hurdle in completing a Ph.D. or other doctoral degree. The dissertation is expected to make a new and creative contribution to a field of study and to ...

  9. Dissertation

    PhD candidates must successfully complete and submit a dissertation to qualify for degree conferral. It is perhaps the most important and far-reaching undertaking in the entire doctoral program, having an impact that extends well beyond graduate studies.

  10. What's the point of the PhD thesis?

    Completed PhD theses are typically stored in university libraries — but that doesn't mean that they are read or used. Some 60% of submissions to the ProQuest database fall under the category of ...

  11. Know the Difference: PhD Dissertation vs. Thesis

    Both the thesis and the dissertation demonstrate the ability of a doctoral candidate to effectively communicate their process of resolving a problem statement. The thesis and dissertation both test a candidate's ability toward analytical reasoning and critical thinking, while showcasing his/her expertise in a particular subject area. Both the ...

  12. Writing a Postgraduate or Doctoral Thesis: A Step-by-Step ...

    The foundation of the entire postgraduate or doctoral research program is disciplinary knowledge. At most universities, one of the main requirements is that the research introduces or expands a novelty that contributes to the advancement of the subject [].Even though the writing is a clear component of higher-level coursework and is frequently acknowledged as a source of significant concern ...

  13. What is a dissertation?

    A dissertation is a written document that summarizes research. It is the final step of a PhD program, and the culmination of a student's doctoral studies. "The dissertation is a source of pride for doctoral students," Dinah Manns, PhD, faculty chair at Capella University, says. "The dissertation is often a compilation of academic and ...

  14. What Is a Thesis?

    A thesis is a type of research paper based on your original research. It is usually submitted as the final step of a PhD program in the UK. Writing a thesis can be a daunting experience. Indeed, alongside a dissertation, it is the longest piece of writing students typically complete. It relies on your ability to conduct research from start to ...

  15. Doctor of Philosophy

    A Doctor of Philosophy (PhD, Ph.D., or DPhil; Latin: philosophiae doctor or doctor philosophiae) is the most common degree at the highest academic level, awarded following a course of study and research. The degree is abbreviated PhD and sometimes, especially in the U.S., as Ph.D. It is derived from the Latin Philosophiae Doctor, pronounced as three separate letters (/ p iː eɪ tʃ ˈ d iː ...

  16. What is a Ph.D. Dissertation?

    The dissertation is a technical work that documents and proves one's thesis. It is intended for a technical audience and must be clear and complete but not necessarily exhaustively comprehensive. Also note -- experimental data, if used, is not the proof -- it is evidence. The proof is presented as an analysis and critical presentation.

  17. How to Write a Thesis or Dissertation Introduction

    To help guide your reader, end your introduction with an outline of the structure of the thesis or dissertation to follow. Share a brief summary of each chapter, clearly showing how each contributes to your central aims. However, be careful to keep this overview concise: 1-2 sentences should be enough. Note.

  18. Know How to Structure Your PhD Thesis

    The bottom line is that how to structure a PhD thesis often depends on your university and department guidelines. But, let's take a look at a general PhD thesis format. We'll look at the main sections, and how to connect them to each other. We'll also examine different hints and tips for each of the sections.

  19. Thesis

    Etymology. The term thesis comes from the Greek word θέσις, meaning "something put forth", and refers to an intellectual proposition. Dissertation comes from the Latin dissertātiō, meaning "discussion". Aristotle was the first philosopher to define the term thesis.. A 'thesis' is a supposition of some eminent philosopher that conflicts with the general opinion...for to take notice when ...

  20. PhD Thesis: Definition, Models, and Differences in Disciplines

    A PhD thesis is a form of examination used for advanced degrees. For example, individuals in pursuit of doctorate degrees have to develop a thesis subjected to scrutiny by a committee of professors that judge its merit. In this case, students draft a thesis proposal that they present and defend to a select panel.

  21. Aims and Objectives

    Summary. One of the most important aspects of a thesis, dissertation or research paper is the correct formulation of the aims and objectives. This is because your aims and objectives will establish the scope, depth and direction that your research will ultimately take. An effective set of aims and objectives will give your research focus and ...

  22. Prize-Winning Thesis and Dissertation Examples

    Prize-Winning Thesis and Dissertation Examples. Published on September 9, 2022 by Tegan George.Revised on July 18, 2023. It can be difficult to know where to start when writing your thesis or dissertation.One way to come up with some ideas or maybe even combat writer's block is to check out previous work done by other students on a similar thesis or dissertation topic to yours.

  23. PHD THESIS definition and meaning

    A research thesis written and submitted by a student wishing to be awarded a PhD.... Click for English pronunciations, examples sentences, video.