questions to ask when doing a literature review

5 Steps to Begin the Literature Review

There are five steps that one should follow before preparing to conduct the literature review :

Identify all the literature relevant to your topic of interest. Explore all the different types of literature including theoretical literature, applied literature, literature that talks about research methods, or a combination thereof.
Using multiple keywords and strategies capture the most accurate and relevant data. Conduct an extensive search in multi-disciplinary databases.
Group your findings into a detailed summary of what is known and what needs to be explored.
Identify existing gaps or any unresolved issues
Formulate broad questions that warrant further research

How to Best Critique a Research paper

For extracting maximum information from a research paper , researchers must ask the following questions!

Has the author formulated an appropriate research question based on the problem/issue?
Is the research question clearly defined in terms of its scope and relevance?
Was there an alternative or better perspective to approach the research question?
What is the author’s orientation towards the research problem – is it a critical analysis or interpretation based?
Has the author extensively evaluated the literature considering both latest and relevant articles?
How has the author defined the basic components (population, interventions, outcomes) of the study? Are the measurements valid, accurate and statistically significant? Are the conclusions based accurate interpretations of the data?
Is there an objective based, unbiased reasoning provided for the problem statement or is the author merely attempting to prove his/her preconceived beliefs and opinions?
How does this article contribute to your understanding of the research problem?
What are the strengths, limitations and shortcomings of the study?

questions to ask when doing a literature review

10 Questions for a Comprehensive Literature Review

1. Do I have clearly defined research aims prior to commencing the review?

It is important to choose a focused question that can efficiently direct your search. It can assist you to create a list of keywords related to your research problem. Furthermore, it helps in identifying relevant databases to search for related journals and articles.

2. Have I correctly identified all the sources that will help me define my problem statement or research question?

Literature is not limited to journal articles, thesis, and dissertations. One should also refer to credible internet sources, conference proceedings that provide latest unpublished papers, as well as government and corporate reports. Books, although do not have latest information, can serve as a good starting point to read background information.

3. Have I considered all kinds of literature – including both qualitative and quantitative research articles?

An exhaustive literature survey helps you position your research within the context of existing literature effectively creating a case as to why further study is necessary. Your search has to be robust enough to ensure that you have browsed through all the relevant and latest articles. Rather than reading everything, researchers must refer and follow the most relevant work!

4. Do I have enough empirical or theoretical evidence to support my hypothesis?

Discovering new patterns and trends becomes easy if you gather credible evidence from earlier works. Furthermore, it helps in rationalizing the significance of your study.

5. Have I identified all the major inconsistencies or other shortcomings related to my research topic?

Researchers should not only refer to articles that present supporting evidence but also focus on those that provide inconclusive or contradictory information. It helps to identify any open questions left by researchers in previous studies.

6. Is my relationship diagram ready?

A relationship diagram is an effective way of recognizing links between different elements of a complex research topic. It is an immensely important tool that helps in clarifying and structuring research specific findings and interpretations at various stages of the project. It is an effective way of representing your current understanding of the research topic. In addition, a good relationship diagram can help you find new insights owing to a clear picture of all the probable relationships between key concepts, variables and key factors.

7. Have I gathered sufficient evidence from the literature about the accuracy and validity of the designs or methods that I plan to use in my experiments?

It is paramount to use methodologies and research techniques that have scientific reliability. Moreover, since methods especially used in qualitative research are often more subjective, it becomes crucial for researchers to reflect on the approach and explain the criteria for selecting a particular method.

8. Have I identified the purpose for which articles have been shortlisted for literature review?

You can expedite your literature writing process if you tag your articles based on its purpose of inclusion in the review report. Following are the tags that can be added to articles:

Show how latest developments or develop a theoretical base to your study
Demonstrate limitations, inconsistencies or shortcomings of previous studies
Critique or support certain methods or findings
Replicate the study in a different setting (region/population)
Indicate how the study supports or contradicts your findings
Use it as a reference to further build your research
Provide a general understanding of concerns relevant to your research topic

9. Have I recorded all the bibliographic information regarding my information sources?

Recording and cataloguing your bibliographical details and references is absolutely crucial for every researcher. You may use commercial software such as Reference manager, End Note, and Pro Cite to manage your references. Furthermore, you may also keep a record of keyword searches that you have performed.

10. Will my literature review reflect a report that is created after a through critical analysis of the literature?

An excellent literature review must be structured, logical, and coherent. It is a great opportunity to demonstrate that you have critically analyzed and understood the relevant body of literature underpinning your research. It is important to structure your literature into appropriate sections that discuss themes or presents trends. Grouping your literature helps in indicating relationships and making comparisons.

Still have more queries related to literature review and synthesis? Post your queries here and our experts will be happy to answer them! You can also visit our Q&A forum for frequently asked questions related to research writing and publishing answered by our team that comprises subject-matter experts, eminent researchers, and publication experts.

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How to Write a Literature Review

1. Identify the Question
Literature Reviews: A Recap
Reading Journal Articles
Does it Describe a Literature Review?

Identify the question

Developing a research question.

2. Review Discipline Styles
Searching Article Databases
Finding Full-Text of an Article
Citation Chaining
When to Stop Searching
4. Manage Your References
5. Critically Analyze and Evaluate
6. Synthesize
7. Write a Literature Review

From Topic to Question (Infographic)

This graphic emphasizes how reading various sources can play a role in defining your research topic.

( Click to Enlarge Image )

From Topic to Question infographic. Follow the "long description" link for a web accessible description.

Text description of "From Topic to Question" for web accessibility

In some cases, such as for a course assignment or a research project you're working on with a faculty mentor, your research question will be determined by your professor. If that's the case, you can move on to the next step . Otherwise, you may need to explore questions on your own.

A few suggestions

Photo Credit: UO Libraries

According to The Craft of Research (2003) , a research question is more than a practical problem or something with a yes/no answer. A research question helps you learn more about something you don't already know and it needs to be significant enough to interest your readers.

Your Curiosity + Significance to Others = Research Question

How to get started.

In a research paper, you develop a unique question and then synthesize scholarly and primary sources into a paper that supports your argument about the topic.

Identify your Topic (This is the starting place from where you develop a research question.)
Refine by Searching (find background information) (Before you can start to develop a research question, you may need to do some preliminary background research to see (1) what has already been done on the topic and (2) what are the issues surrounding the topic.) HINT: Find background information in Google and Books.
Refine by Narrowing (Once you begin to understand the topic and the issues surrounding it, you can start to narrow your topic and develop a research question. Do this by asking the 6 journalistic question words.

Ask yourself these 6 questions

These 6 journalistic question words can help you narrow your focus from a broad topic to a specific question.

Who : Are you interested in a specific group of people? Can your topic be narrowed by gender, sex, age, ethnicity, socio-economic status or something else? Are there any key figures related to your topic?

What : What are the issues surrounding your topic? Are there subtopics? In looking at background information, did you notice any gaps or questions that seemed unanswered?

Where : Can your topic be narrowed down to a geographic location? Warning: Don't get too narrow here. You might not be able to find enough information on a town or state.

When : Is your topic current or historical? Is it confined to a specific time period? Was there a causative event that led your topic to become an area of study?

Why : Why are you interested in this topic? Why should others be interested?

How : What kinds of information do you need? Primary sources, statistics? What is your methodology?

Detailed description of, "Developing a Research Question" for web accessibility

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Steps in Conducting a Literature Review

What is a literature review?

A literature review is an integrated analysis -- not just a summary-- of scholarly writings and other relevant evidence related directly to your research question. That is, it represents a synthesis of the evidence that provides background information on your topic and shows a association between the evidence and your research question.

A literature review may be a stand alone work or the introduction to a larger research paper, depending on the assignment. Rely heavily on the guidelines your instructor has given you.

Why is it important?

A literature review is important because it:

Explains the background of research on a topic.
Demonstrates why a topic is significant to a subject area.
Discovers relationships between research studies/ideas.
Identifies major themes, concepts, and researchers on a topic.
Identifies critical gaps and points of disagreement.
Discusses further research questions that logically come out of the previous studies.

APA7 Style resources

APA Style Blog - for those harder to find answers

1. Choose a topic. Define your research question.

Your literature review should be guided by your central research question. The literature represents background and research developments related to a specific research question, interpreted and analyzed by you in a synthesized way.

Make sure your research question is not too broad or too narrow. Is it manageable?
Begin writing down terms that are related to your question. These will be useful for searches later.
If you have the opportunity, discuss your topic with your professor and your class mates.

2. Decide on the scope of your review

How many studies do you need to look at? How comprehensive should it be? How many years should it cover?

This may depend on your assignment. How many sources does the assignment require?

3. Select the databases you will use to conduct your searches.

Make a list of the databases you will search.

Where to find databases:

use the tabs on this guide
Find other databases in the Nursing Information Resources web page
More on the Medical Library web page
... and more on the Yale University Library web page

4. Conduct your searches to find the evidence. Keep track of your searches.

Use the key words in your question, as well as synonyms for those words, as terms in your search. Use the database tutorials for help.
Save the searches in the databases. This saves time when you want to redo, or modify, the searches. It is also helpful to use as a guide is the searches are not finding any useful results.
Review the abstracts of research studies carefully. This will save you time.
Use the bibliographies and references of research studies you find to locate others.
Check with your professor, or a subject expert in the field, if you are missing any key works in the field.
Ask your librarian for help at any time.
Use a citation manager, such as EndNote as the repository for your citations. See the EndNote tutorials for help.

Review the literature

Some questions to help you analyze the research:

What was the research question of the study you are reviewing? What were the authors trying to discover?
Was the research funded by a source that could influence the findings?
What were the research methodologies? Analyze its literature review, the samples and variables used, the results, and the conclusions.
Does the research seem to be complete? Could it have been conducted more soundly? What further questions does it raise?
If there are conflicting studies, why do you think that is?
How are the authors viewed in the field? Has this study been cited? If so, how has it been analyzed?

Tips:

Review the abstracts carefully.
Keep careful notes so that you may track your thought processes during the research process.
Create a matrix of the studies for easy analysis, and synthesis, across all of the studies.
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Literature Reviews

1. Define your research question
Getting started
Types of reviews

Define topic

Brainstorming, limit scope, how ai can help, helpful resources.

2. Plan your search
3. Search the literature
4. Organize your results
5. Synthesize your findings
6. Write the review
Artificial intelligence (AI) tools
Thompson Writing Studio This link opens in a new window
Need to write a systematic review? This link opens in a new window

Contact a Librarian

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For example, the following research question is too broad.

Does social media affect mental health in college students?

A more focused research question could be:

Does social media play a role in the number of eating disorder diagnoses in college-aged women?

Need some guidance? Contact your subject librarian for a research consultation or reach out to [email protected] .

Start the brainstorming process:

Begin by identifying a broad topic of research interest (the more you're personally interested in it, the better!). Write it down to clarify your focus.
Narrow down your scope by considering specific areas within this topic that you want to explore.
Identify key themes and elements related to these specific areas. These will be the building blocks of your investigation.
Finally, integrate these key areas and elements into a well-crafted research question.

One way to brainstorm is to use a flowchart.

The scope of a topic encompasses the boundaries and constraints you set for your research. The more precise your research question, the smoother the research process becomes.

Feeling stuck? Here are some ways you can narrow down your topic:

geographic location
time period
discipline/field of study
age group, etc.

You: I need to conduct a literature review about social media, mental health, and college students. What are some example research questions within this topic?

ChatGPT:

How does the frequency and nature of social media use impact the mental health of college students?
What role do specific social media platforms play in influencing the mental well-being of college students?
How do online social interactions on platforms like Facebook, Instagram, or Twitter relate to the mental health outcomes of college students?
Are there differences in the association between social media use and mental health outcomes based on demographic factors such as gender, age, or academic major among college students?
What strategies do college students employ to cope with negative mental health effects associated with social media use?
How does the perception of social support through online platforms affect the mental health of college students?
To what extent does the comparison of oneself to others on social media contribute to mental health challenges among college students?
What interventions or educational programs are effective in promoting positive mental health behaviors in the context of social media use for college students?
How do social media literacy and awareness programs impact the mental health attitudes and behaviors of college students?
What is the relationship between the use of social media for academic and social purposes and the mental health outcomes of college students?

Generative AI tools : ChatGPT , Google Gemini (formerly Bard) , Claude , Microsoft Copilot

For more information on how to incorporate AI tools into your research, check out the section on AI Tools .

Developing Your Research Question
Developing a Researchable Question
Brainstorming tips from UNC Writing Center
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Writing a Literature Review: Planning Your Review

Getting Started
Planning Your Review
Searching the Library's Catalog
Subject Headings
Interlibrary Loan
Scholarly Information
Managing Your Results
Writing Your Review

Planning Your Literature Review

Writing a literature review will take time to gather and analyze the research relevant to your topic, so it best to start early and give yourself enough time to gather and analyze your sources. The process of writing a literature review usually covers the following steps:

Define your Research question
Plan your approach to your research and your review
Search the Literature
Analyze the material you’ve found
Managing the results of your research
Writing your Review

Defining Your Research Question

One of the hardest parts of a literature review is to develop a good research question. You don't want a research question that is so broad it encompasses too many research areas, and can't be reasonably answered.

Defining your topic may require an initial review of literature on your topic to get a sense of the scope about your topic. Select a topic of interest, and do a preliminary search to see what kinds of research is being done and what is trending in that topic area. This will give you a better sense of the topic, and help you focus your research question

In specifying your topic or research question, you should think about setting appropriate limitations on the research you are seeking. Limiting, for example, by time, personnel, gender, age, location, nationality etc. results in a more focused and meaningful topic.

Using an example from the Duke University Writing Studio, you may start with a general question:

Why did the chicken cross the road ? This question is so general that you could be gathering relevant research for days.

A more precise research question might be:

What are some of the environmental factors that occurred in Pittsburgh, PA between January and February 2015 that would cause a chicken to cross Forbes Avenue? This research question is specific about a number of variables like time, geography, etc.

Additional Help:

What Makes a Good Research Question?
Formulating a Research Question
What is a Literature Review

Questions to Ask

Some questions to think about as you develop your literature review:

What is known about the subject?
Are there any gaps in the knowledge of the subject?
Have areas of further study been identified by other researchers that you may want to consider?
Who are the significant research personalities in this area?
Is there consensus about the topic?
What aspects have generated significant debate on the topic?
What methods or problems were identified by others studying in the field and how might they impact your research?
What is the most productive methodology for your research based on the literature you have reviewed?
What is the current status of research in this area?
What sources of information or data were identified that might be useful to you?
How detailed? Will it be a review of ALL relevant material or will the scope be limited to more recent material, e.g., the last five years.
Are you focusing on methodological approaches; on theoretical issues; on qualitative or quantitative research?
“Literature Reviews", The Writing Center at University of North Carolina at Chapel Hill
The Literature Review: A Few Tips On Conducting It
Patricia Cronin, Frances Ryan, and Michael Coughlan, “Undertaking a Literature Review: A Step-by-Step Approach,” British Journal of Nursing, 17, no 1 (2008), 38-43.

Books about Literature Reviews

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Library Hours Study Rooms My Library Account Library Website

Literature Reviews

Getting Started
Choosing a Type of Review

Developing a Research Question

Finding example literature reviews.

Searching the Literature
Searching Tips
ChatGPT [beta]
Documenting your Search
Using Citation Managers
Concept Mapping
Writing the Review
Further Resources

Goldilocker Tool

UM Librarians have developed a quick tool called Goldilocker to help beginners who are struggling to refine their Research Question.

DEVELOPING A RESEARCH QUESTION

Before searching for sources, you need to formulate a Research Question — this is what you are trying to answer using the existing academic literature. The Research Question pinpoints the focus of the review .

Your first step involves choosing, exploring, and focusing a topic. At this stage you might discover that you need to tweak your topic or the scope of your research as you learn more about the topic in the literature.

THINGS TO KEEP IN MIND:

The question must be "researchable" — it can be answered with accessible facts and data
Questions often start with How, Why, What, Which
The question opens the door for other areas of inquiry — it identifies a gap in existing research
Questions should be open-ended and focus on cause and effect

TRY TO AVOID:

Simple yes/no questions, or questions with an easy answer (what is the radius of the moon?)
Questions that can only be answered by an opinion (does it smell nice when it rains?)
Questions that involve secret information (what is the recipe for Coca-Cola?)
Questions that are too broad or too narrow

REFINING YOUR RESEARCH QUESTION

Two examples of refining research questions that could be considered either too broad or too narrow.

USING DATABASE FILTER TOOLS

It can be helpful to read existing literature reviews on your topic to get an idea of major themes, how authors structure their arguments, or what reviews look like in your discipline.

DOCUMENT TYPE FILTERS

Many library databases have the option to highlight just Review Articles after you perform a search. Filters above show what the Document Type filter looks like, with a "Review" option. These examples are from Scopus and ProQuest. The "Review" filter here refers to free-standing, comprehensive Review Articles on a topic, as opposed to a shorter literature review inside a scholarly article.

LIT REVIEWS INSIDE ARTICLES

It is also worth taking a look at the shorter literature reviews inside scholarly articles. These can sometimes be called "Background" or "Background Literature." Look for a section typically following the Introduction that covers the history or gives context on the paper's topic.

EXAMPLE REVIEW ARTICLES

Here are a few examples of Review Articles in different disciplines. Note sometimes an article can be a Review Article without the word "review" in the title.

HUMANITIES — Art — " Art and Crime: Conceptualising Graffiti in the City " from the journal Geography Compass

SCIENCES — Climate Change — " Mercury Isotopes in Earth and Environmental Sciences " from the journal Annual Review of Earth and Planetary Sciences

SOCIAL SCIENCES — Psychology — " Structural Competency and the Future of Firearm Research " from the journal Social Science & Medicine

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A literature review surveys prior research published in books, scholarly articles, and any other sources relevant to a particular issue, area of research, or theory, and by so doing, provides a description, summary, and critical evaluation of these works in relation to the research problem being investigated. Literature reviews are designed to provide an overview of sources you have used in researching a particular topic and to demonstrate to your readers how your research fits within existing scholarship about the topic.

Fink, Arlene. Conducting Research Literature Reviews: From the Internet to Paper . Fourth edition. Thousand Oaks, CA: SAGE, 2014.

Importance of a Good Literature Review

A literature review may consist of simply a summary of key sources, but in the social sciences, a literature review usually has an organizational pattern and combines both summary and synthesis, often within specific conceptual categories . A summary is a recap of the important information of the source, but a synthesis is a re-organization, or a reshuffling, of that information in a way that informs how you are planning to investigate a research problem. The analytical features of a literature review might:

Give a new interpretation of old material or combine new with old interpretations,
Trace the intellectual progression of the field, including major debates,
Depending on the situation, evaluate the sources and advise the reader on the most pertinent or relevant research, or
Usually in the conclusion of a literature review, identify where gaps exist in how a problem has been researched to date.

Given this, the purpose of a literature review is to:

Place each work in the context of its contribution to understanding the research problem being studied.
Describe the relationship of each work to the others under consideration.
Identify new ways to interpret prior research.
Reveal any gaps that exist in the literature.
Resolve conflicts amongst seemingly contradictory previous studies.
Identify areas of prior scholarship to prevent duplication of effort.
Point the way in fulfilling a need for additional research.
Locate your own research within the context of existing literature [very important].

Fink, Arlene. Conducting Research Literature Reviews: From the Internet to Paper. 2nd ed. Thousand Oaks, CA: Sage, 2005; Hart, Chris. Doing a Literature Review: Releasing the Social Science Research Imagination . Thousand Oaks, CA: Sage Publications, 1998; Jesson, Jill. Doing Your Literature Review: Traditional and Systematic Techniques . Los Angeles, CA: SAGE, 2011; Knopf, Jeffrey W. "Doing a Literature Review." PS: Political Science and Politics 39 (January 2006): 127-132; Ridley, Diana. The Literature Review: A Step-by-Step Guide for Students . 2nd ed. Los Angeles, CA: SAGE, 2012.

Types of Literature Reviews

It is important to think of knowledge in a given field as consisting of three layers. First, there are the primary studies that researchers conduct and publish. Second are the reviews of those studies that summarize and offer new interpretations built from and often extending beyond the primary studies. Third, there are the perceptions, conclusions, opinion, and interpretations that are shared informally among scholars that become part of the body of epistemological traditions within the field.

In composing a literature review, it is important to note that it is often this third layer of knowledge that is cited as "true" even though it often has only a loose relationship to the primary studies and secondary literature reviews. Given this, while literature reviews are designed to provide an overview and synthesis of pertinent sources you have explored, there are a number of approaches you could adopt depending upon the type of analysis underpinning your study.

Argumentative Review This form examines literature selectively in order to support or refute an argument, deeply embedded assumption, or philosophical problem already established in the literature. The purpose is to develop a body of literature that establishes a contrarian viewpoint. Given the value-laden nature of some social science research [e.g., educational reform; immigration control], argumentative approaches to analyzing the literature can be a legitimate and important form of discourse. However, note that they can also introduce problems of bias when they are used to make summary claims of the sort found in systematic reviews [see below].

Integrative Review Considered a form of research that reviews, critiques, and synthesizes representative literature on a topic in an integrated way such that new frameworks and perspectives on the topic are generated. The body of literature includes all studies that address related or identical hypotheses or research problems. A well-done integrative review meets the same standards as primary research in regard to clarity, rigor, and replication. This is the most common form of review in the social sciences.

Historical Review Few things rest in isolation from historical precedent. Historical literature reviews focus on examining research throughout a period of time, often starting with the first time an issue, concept, theory, phenomena emerged in the literature, then tracing its evolution within the scholarship of a discipline. The purpose is to place research in a historical context to show familiarity with state-of-the-art developments and to identify the likely directions for future research.

Methodological Review A review does not always focus on what someone said [findings], but how they came about saying what they say [method of analysis]. Reviewing methods of analysis provides a framework of understanding at different levels [i.e. those of theory, substantive fields, research approaches, and data collection and analysis techniques], how researchers draw upon a wide variety of knowledge ranging from the conceptual level to practical documents for use in fieldwork in the areas of ontological and epistemological consideration, quantitative and qualitative integration, sampling, interviewing, data collection, and data analysis. This approach helps highlight ethical issues which you should be aware of and consider as you go through your own study.

Systematic Review This form consists of an overview of existing evidence pertinent to a clearly formulated research question, which uses pre-specified and standardized methods to identify and critically appraise relevant research, and to collect, report, and analyze data from the studies that are included in the review. The goal is to deliberately document, critically evaluate, and summarize scientifically all of the research about a clearly defined research problem . Typically it focuses on a very specific empirical question, often posed in a cause-and-effect form, such as "To what extent does A contribute to B?" This type of literature review is primarily applied to examining prior research studies in clinical medicine and allied health fields, but it is increasingly being used in the social sciences.

Theoretical Review The purpose of this form is to examine the corpus of theory that has accumulated in regard to an issue, concept, theory, phenomena. The theoretical literature review helps to establish what theories already exist, the relationships between them, to what degree the existing theories have been investigated, and to develop new hypotheses to be tested. Often this form is used to help establish a lack of appropriate theories or reveal that current theories are inadequate for explaining new or emerging research problems. The unit of analysis can focus on a theoretical concept or a whole theory or framework.

NOTE : Most often the literature review will incorporate some combination of types. For example, a review that examines literature supporting or refuting an argument, assumption, or philosophical problem related to the research problem will also need to include writing supported by sources that establish the history of these arguments in the literature.

Baumeister, Roy F. and Mark R. Leary. "Writing Narrative Literature Reviews." Review of General Psychology 1 (September 1997): 311-320; Mark R. Fink, Arlene. Conducting Research Literature Reviews: From the Internet to Paper . 2nd ed. Thousand Oaks, CA: Sage, 2005; Hart, Chris. Doing a Literature Review: Releasing the Social Science Research Imagination . Thousand Oaks, CA: Sage Publications, 1998; Kennedy, Mary M. "Defining a Literature." Educational Researcher 36 (April 2007): 139-147; Petticrew, Mark and Helen Roberts. Systematic Reviews in the Social Sciences: A Practical Guide . Malden, MA: Blackwell Publishers, 2006; Torracro, Richard. "Writing Integrative Literature Reviews: Guidelines and Examples." Human Resource Development Review 4 (September 2005): 356-367; Rocco, Tonette S. and Maria S. Plakhotnik. "Literature Reviews, Conceptual Frameworks, and Theoretical Frameworks: Terms, Functions, and Distinctions." Human Ressource Development Review 8 (March 2008): 120-130; Sutton, Anthea. Systematic Approaches to a Successful Literature Review . Los Angeles, CA: Sage Publications, 2016.

Structure and Writing Style

I. Thinking About Your Literature Review

The structure of a literature review should include the following in support of understanding the research problem :

An overview of the subject, issue, or theory under consideration, along with the objectives of the literature review,
Division of works under review into themes or categories [e.g. works that support a particular position, those against, and those offering alternative approaches entirely],
An explanation of how each work is similar to and how it varies from the others,
Conclusions as to which pieces are best considered in their argument, are most convincing of their opinions, and make the greatest contribution to the understanding and development of their area of research.

The critical evaluation of each work should consider :

Provenance -- what are the author's credentials? Are the author's arguments supported by evidence [e.g. primary historical material, case studies, narratives, statistics, recent scientific findings]?
Methodology -- were the techniques used to identify, gather, and analyze the data appropriate to addressing the research problem? Was the sample size appropriate? Were the results effectively interpreted and reported?
Objectivity -- is the author's perspective even-handed or prejudicial? Is contrary data considered or is certain pertinent information ignored to prove the author's point?
Persuasiveness -- which of the author's theses are most convincing or least convincing?
Validity -- are the author's arguments and conclusions convincing? Does the work ultimately contribute in any significant way to an understanding of the subject?

II. Development of the Literature Review

Four Basic Stages of Writing 1. Problem formulation -- which topic or field is being examined and what are its component issues? 2. Literature search -- finding materials relevant to the subject being explored. 3. Data evaluation -- determining which literature makes a significant contribution to the understanding of the topic. 4. Analysis and interpretation -- discussing the findings and conclusions of pertinent literature.

Consider the following issues before writing the literature review: Clarify If your assignment is not specific about what form your literature review should take, seek clarification from your professor by asking these questions: 1. Roughly how many sources would be appropriate to include? 2. What types of sources should I review (books, journal articles, websites; scholarly versus popular sources)? 3. Should I summarize, synthesize, or critique sources by discussing a common theme or issue? 4. Should I evaluate the sources in any way beyond evaluating how they relate to understanding the research problem? 5. Should I provide subheadings and other background information, such as definitions and/or a history? Find Models Use the exercise of reviewing the literature to examine how authors in your discipline or area of interest have composed their literature review sections. Read them to get a sense of the types of themes you might want to look for in your own research or to identify ways to organize your final review. The bibliography or reference section of sources you've already read, such as required readings in the course syllabus, are also excellent entry points into your own research. Narrow the Topic The narrower your topic, the easier it will be to limit the number of sources you need to read in order to obtain a good survey of relevant resources. Your professor will probably not expect you to read everything that's available about the topic, but you'll make the act of reviewing easier if you first limit scope of the research problem. A good strategy is to begin by searching the USC Libraries Catalog for recent books about the topic and review the table of contents for chapters that focuses on specific issues. You can also review the indexes of books to find references to specific issues that can serve as the focus of your research. For example, a book surveying the history of the Israeli-Palestinian conflict may include a chapter on the role Egypt has played in mediating the conflict, or look in the index for the pages where Egypt is mentioned in the text. Consider Whether Your Sources are Current Some disciplines require that you use information that is as current as possible. This is particularly true in disciplines in medicine and the sciences where research conducted becomes obsolete very quickly as new discoveries are made. However, when writing a review in the social sciences, a survey of the history of the literature may be required. In other words, a complete understanding the research problem requires you to deliberately examine how knowledge and perspectives have changed over time. Sort through other current bibliographies or literature reviews in the field to get a sense of what your discipline expects. You can also use this method to explore what is considered by scholars to be a "hot topic" and what is not.

III. Ways to Organize Your Literature Review

Chronology of Events If your review follows the chronological method, you could write about the materials according to when they were published. This approach should only be followed if a clear path of research building on previous research can be identified and that these trends follow a clear chronological order of development. For example, a literature review that focuses on continuing research about the emergence of German economic power after the fall of the Soviet Union. By Publication Order your sources by publication chronology, then, only if the order demonstrates a more important trend. For instance, you could order a review of literature on environmental studies of brown fields if the progression revealed, for example, a change in the soil collection practices of the researchers who wrote and/or conducted the studies. Thematic [“conceptual categories”] A thematic literature review is the most common approach to summarizing prior research in the social and behavioral sciences. Thematic reviews are organized around a topic or issue, rather than the progression of time, although the progression of time may still be incorporated into a thematic review. For example, a review of the Internet’s impact on American presidential politics could focus on the development of online political satire. While the study focuses on one topic, the Internet’s impact on American presidential politics, it would still be organized chronologically reflecting technological developments in media. The difference in this example between a "chronological" and a "thematic" approach is what is emphasized the most: themes related to the role of the Internet in presidential politics. Note that more authentic thematic reviews tend to break away from chronological order. A review organized in this manner would shift between time periods within each section according to the point being made. Methodological A methodological approach focuses on the methods utilized by the researcher. For the Internet in American presidential politics project, one methodological approach would be to look at cultural differences between the portrayal of American presidents on American, British, and French websites. Or the review might focus on the fundraising impact of the Internet on a particular political party. A methodological scope will influence either the types of documents in the review or the way in which these documents are discussed.

Other Sections of Your Literature Review Once you've decided on the organizational method for your literature review, the sections you need to include in the paper should be easy to figure out because they arise from your organizational strategy. In other words, a chronological review would have subsections for each vital time period; a thematic review would have subtopics based upon factors that relate to the theme or issue. However, sometimes you may need to add additional sections that are necessary for your study, but do not fit in the organizational strategy of the body. What other sections you include in the body is up to you. However, only include what is necessary for the reader to locate your study within the larger scholarship about the research problem.

Here are examples of other sections, usually in the form of a single paragraph, you may need to include depending on the type of review you write:

Current Situation : Information necessary to understand the current topic or focus of the literature review.
Sources Used : Describes the methods and resources [e.g., databases] you used to identify the literature you reviewed.
History : The chronological progression of the field, the research literature, or an idea that is necessary to understand the literature review, if the body of the literature review is not already a chronology.
Selection Methods : Criteria you used to select (and perhaps exclude) sources in your literature review. For instance, you might explain that your review includes only peer-reviewed [i.e., scholarly] sources.
Standards : Description of the way in which you present your information.
Questions for Further Research : What questions about the field has the review sparked? How will you further your research as a result of the review?

IV. Writing Your Literature Review

Once you've settled on how to organize your literature review, you're ready to write each section. When writing your review, keep in mind these issues.

Use Evidence A literature review section is, in this sense, just like any other academic research paper. Your interpretation of the available sources must be backed up with evidence [citations] that demonstrates that what you are saying is valid. Be Selective Select only the most important points in each source to highlight in the review. The type of information you choose to mention should relate directly to the research problem, whether it is thematic, methodological, or chronological. Related items that provide additional information, but that are not key to understanding the research problem, can be included in a list of further readings . Use Quotes Sparingly Some short quotes are appropriate if you want to emphasize a point, or if what an author stated cannot be easily paraphrased. Sometimes you may need to quote certain terminology that was coined by the author, is not common knowledge, or taken directly from the study. Do not use extensive quotes as a substitute for using your own words in reviewing the literature. Summarize and Synthesize Remember to summarize and synthesize your sources within each thematic paragraph as well as throughout the review. Recapitulate important features of a research study, but then synthesize it by rephrasing the study's significance and relating it to your own work and the work of others. Keep Your Own Voice While the literature review presents others' ideas, your voice [the writer's] should remain front and center. For example, weave references to other sources into what you are writing but maintain your own voice by starting and ending the paragraph with your own ideas and wording. Use Caution When Paraphrasing When paraphrasing a source that is not your own, be sure to represent the author's information or opinions accurately and in your own words. Even when paraphrasing an author’s work, you still must provide a citation to that work.

V. Common Mistakes to Avoid

These are the most common mistakes made in reviewing social science research literature.

Sources in your literature review do not clearly relate to the research problem;
You do not take sufficient time to define and identify the most relevant sources to use in the literature review related to the research problem;
Relies exclusively on secondary analytical sources rather than including relevant primary research studies or data;
Uncritically accepts another researcher's findings and interpretations as valid, rather than examining critically all aspects of the research design and analysis;
Does not describe the search procedures that were used in identifying the literature to review;
Reports isolated statistical results rather than synthesizing them in chi-squared or meta-analytic methods; and,
Only includes research that validates assumptions and does not consider contrary findings and alternative interpretations found in the literature.

Cook, Kathleen E. and Elise Murowchick. “Do Literature Review Skills Transfer from One Course to Another?” Psychology Learning and Teaching 13 (March 2014): 3-11; Fink, Arlene. Conducting Research Literature Reviews: From the Internet to Paper . 2nd ed. Thousand Oaks, CA: Sage, 2005; Hart, Chris. Doing a Literature Review: Releasing the Social Science Research Imagination . Thousand Oaks, CA: Sage Publications, 1998; Jesson, Jill. Doing Your Literature Review: Traditional and Systematic Techniques . London: SAGE, 2011; Literature Review Handout. Online Writing Center. Liberty University; Literature Reviews. The Writing Center. University of North Carolina; Onwuegbuzie, Anthony J. and Rebecca Frels. Seven Steps to a Comprehensive Literature Review: A Multimodal and Cultural Approach . Los Angeles, CA: SAGE, 2016; Ridley, Diana. The Literature Review: A Step-by-Step Guide for Students . 2nd ed. Los Angeles, CA: SAGE, 2012; Randolph, Justus J. “A Guide to Writing the Dissertation Literature Review." Practical Assessment, Research, and Evaluation. vol. 14, June 2009; Sutton, Anthea. Systematic Approaches to a Successful Literature Review . Los Angeles, CA: Sage Publications, 2016; Taylor, Dena. The Literature Review: A Few Tips On Conducting It. University College Writing Centre. University of Toronto; Writing a Literature Review. Academic Skills Centre. University of Canberra.

Writing Tip

Break Out of Your Disciplinary Box!

Thinking interdisciplinarily about a research problem can be a rewarding exercise in applying new ideas, theories, or concepts to an old problem. For example, what might cultural anthropologists say about the continuing conflict in the Middle East? In what ways might geographers view the need for better distribution of social service agencies in large cities than how social workers might study the issue? You don’t want to substitute a thorough review of core research literature in your discipline for studies conducted in other fields of study. However, particularly in the social sciences, thinking about research problems from multiple vectors is a key strategy for finding new solutions to a problem or gaining a new perspective. Consult with a librarian about identifying research databases in other disciplines; almost every field of study has at least one comprehensive database devoted to indexing its research literature.

Frodeman, Robert. The Oxford Handbook of Interdisciplinarity . New York: Oxford University Press, 2010.

Another Writing Tip

Don't Just Review for Content!

While conducting a review of the literature, maximize the time you devote to writing this part of your paper by thinking broadly about what you should be looking for and evaluating. Review not just what scholars are saying, but how are they saying it. Some questions to ask:

How are they organizing their ideas?
What methods have they used to study the problem?
What theories have been used to explain, predict, or understand their research problem?
What sources have they cited to support their conclusions?
How have they used non-textual elements [e.g., charts, graphs, figures, etc.] to illustrate key points?

When you begin to write your literature review section, you'll be glad you dug deeper into how the research was designed and constructed because it establishes a means for developing more substantial analysis and interpretation of the research problem.

Hart, Chris. Doing a Literature Review: Releasing the Social Science Research Imagination . Thousand Oaks, CA: Sage Publications, 1 998.

Yet Another Writing Tip

When Do I Know I Can Stop Looking and Move On?

Here are several strategies you can utilize to assess whether you've thoroughly reviewed the literature:

Look for repeating patterns in the research findings . If the same thing is being said, just by different people, then this likely demonstrates that the research problem has hit a conceptual dead end. At this point consider: Does your study extend current research? Does it forge a new path? Or, does is merely add more of the same thing being said?
Look at sources the authors cite to in their work . If you begin to see the same researchers cited again and again, then this is often an indication that no new ideas have been generated to address the research problem.
Search Google Scholar to identify who has subsequently cited leading scholars already identified in your literature review [see next sub-tab]. This is called citation tracking and there are a number of sources that can help you identify who has cited whom, particularly scholars from outside of your discipline. Here again, if the same authors are being cited again and again, this may indicate no new literature has been written on the topic.

Onwuegbuzie, Anthony J. and Rebecca Frels. Seven Steps to a Comprehensive Literature Review: A Multimodal and Cultural Approach . Los Angeles, CA: Sage, 2016; Sutton, Anthea. Systematic Approaches to a Successful Literature Review . Los Angeles, CA: Sage Publications, 2016.

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Last Updated: May 15, 2024 9:53 AM
URL: https://libguides.usc.edu/writingguide

University of Texas Libraries

Literature Reviews

Define your research question.

What is a literature review?
Steps in the Literature Review Process
Determine inclusion and exclusion criteria
Choose databases and search
Review Results
Synthesize Results
Analyze Results
Librarian Support

Defining your research question is the key to beginning, so while you may be clear on the area you want to study, chances are there are some nuances that you need to think through.

Part of this process may require exploratory searching in databases so that you can see what's already been published on your topic. Even if it's a new area, it's likely something has already been published in at least an adjacent area of study.

Some things to consider:

What is my central question or issue that the literature can help define?
What is already known about the topic?
Is the scope of the literature being reviewed wide or narrow enough?
Is there a conflict or debate in the literature?
What connections can be made between the texts being reviewed?
What sort of literature should be reviewed? Historical? Theoretical? Methodological? Quantitative? Qualitative?
What criteria should be used to evaluate the literature being reviewed?
How will reviewing the literature justify the topic I plan to investigate?

Source: https://libguides.library.kent.edu/c.php?g=389868&p=2645658

For more on the research question: https://writingcenter.gmu.edu/guides/how-to-write-a-research-question

Video on Defining the Research Question

When you pick your topic, it's not set in stone. Picking and adjusting your topic is an integral part of the research process! This video is published under a Creative Commons 3.0 BY-NC-SA US license. (3 minutes)

Last Updated: Oct 26, 2022 2:49 PM
URL: https://guides.lib.utexas.edu/literaturereviews

University of Pittsburgh Library System

Collections

Course & Subject Guides

Literature reviews.

Getting Started

Planning Your Literature Review

Defining your research question, questions to ask, books about literature reviews.

Searching Tips
Getting Materials
Scholarly Information
Managing Your Results
Writing Your Review

Define your Research question
Plan your approach to your research and your review
Search the Literature
Analyze the material you’ve found
Managing the results of your research
Writing your Review

Using an example from the Duke University Writing Studio, you may start with a general question:

Why did the chicken cross the road ? This question is so general that you could be gathering relevant research for days.

A more precise research question might be:

Additional Help:

What Makes a Good Research Question?
Formulating Your Research Question
Simmi K. Ratan, Tanu Anand, and John Ratan. "Formulation of Research Question – Stepwise Approach". Journal of Indian Association of Pediatric Surgeons, 2019 Jan-Mar; 24(1): 15–20.

Some questions to think about as you develop your literature review:

What is known about the subject?
Are there any gaps in the knowledge of the subject?
Have areas of further study been identified by other researchers that you may want to consider?
Who are the significant research personalities in this area?
Is there consensus about the topic?
What aspects have generated significant debate on the topic?
What methods or problems were identified by others studying in the field and how might they impact your research?
What is the most productive methodology for your research based on the literature you have reviewed?
What is the current status of research in this area?
What sources of information or data were identified that might be useful to you?
How detailed? Will it be a review of ALL relevant material or will the scope be limited to more recent material, e.g., the last five years.
Are you focusing on methodological approaches; on theoretical issues; on qualitative or quantitative research?
“Literature Reviews", The Writing Center at University of North Carolina at Chapel Hill
The Literature Review: A Few Tips On Conducting It
Patricia Cronin, Frances Ryan, and Michael Coughlan, “Undertaking a Literature Review: A Step-by-Step Approach,” British Journal of Nursing, 17, no 1 (2008), 38-43.

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Next: Searching the Literature >>
Last Updated: Jan 28, 2024 4:26 PM
URL: https://pitt.libguides.com/literaturereview

Conducting a Literature Review

Getting Started
Developing a Question
Searching the Literature
Identifying Peer-Reviewed Resources
Managing Results
Analyzing the Literature
Writing the Review

Need help? Ask your librarian!

Step 1: Select a Topic

Selecting a topic for a literature review can be challenging, but there are a few things you can consider to help you choose an interesting and relevant topic:

Avoid selecting a broad topic like "pain" - instead, consider key aspects are of significance, like "pain management" or "pain prevention".
It is better to start with an overly-narrow topic than an overly-broad topic.
Discuss your topic ideas with a peer or mentor for additional insights.
Do some quick searches on a topic of interest to find out if there is enough existing literature to support a literature review.

Cronin, P., Ryan, F. & Coughlan, M. (2008). Undertaking a literature review: A step-by-step approach. British Journal of Nursing, 17 (1), 38-43

Step 2: Develop a Searchable Question

When developing a searchable question, it helps to identify the key concepts of your research proposal. A clear and precise search question can be used to develop search terms during the literature searching process.

There are a number of frameworks available to use to help you break your question into its key concepts. Take a look at the frameworks below.

Evidence-Based Practice
General Health
Health Management

From BMJ Best Practice :

The PICO (Population, Intervention, Comparator and Outcomes) model captures the key elements and is a good strategy to provide answerable questions.

Population : who are the relevant patients or the target audience for the problem being addressed? Example: In women with non-tubal infertility

Intervention : what intervention is being considered? Example: …would intrauterine insemination…

Comparator : what is the main comparator to the intervention that you want to assess? Example: …when compared with fallopian tube sperm perfusion…

Outcomes : what are the consequences of the interventions for the patient? Or what are the main outcomes of interest to the patient or decision maker? Example: …lead to higher live birth rates with no increase in multiple pregnancy, miscarriage or ectopic pregnancy rates?

How to clarify a clinical question. (n.d.). BMJ Best Practice . Retrieved October 26, 2022, from https://bestpractice.bmj.com/info/us/toolkit/learn-ebm/how-to-clarify-a-clinical-question/

From "Formulating the Evidence Based Practice Question":

Setting : What is the context for the question? The research evidence should reflect the context or the research findings may not be transferable.

Perspective : Who are the users, potential users, or stakeholders of the service?

Intervention : What is being done for the users, potential users, or stakeholders?

Comparison : What are the alternatives? An alternative might maintain the status quo and change nothing.

Evaluation : What measurement will determine the intervention’s success? In other words, what is the result?

Davies, K. S. (2011). Formulating the Evidence Based Practice Question: A Review of the Frameworks. Evidence Based Library and Information Practice , 6 (2), Article 2. https://doi.org/10.18438/B8WS5N

From "How CLIP became ECLIPSE":

Expectation —what does the search requester want the information for (the original ‘I’s)? Client Group Location Impact: what is the change in the service, if any, which is being looked for? What would constitute success? How is this being measured? Professionals Service: for which service are you looking for information? For example, outpatient services, nurse-led clinics, intermediate care

Wildridge, V., & Bell, L. (2002). How CLIP became ECLIPSE: A mnemonic to assist in searching for health policy/management information. Health Information & Libraries Journal , 19 (2), 113–115. https://doi.org/10.1046/j.1471-1842.2002.00378.x

Step 3: Apply PICO Framework

The PICO framework is one of the more commonly used question frameworks in EBP.

Clinical examples using PICO Practice creating a PICO question from clinical scenarios.
The Underappreciated and Misunderstood PICOT Question: A Critical Step in the EBP Process
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Next: Searching the Literature >>
Last Updated: Apr 16, 2024 3:40 PM
URL: https://libguides.libraries.wsu.edu/litreview

Subject guides
Researching for your literature review
Before you start

Researching for your literature review: Before you start

Literature reviews
Literature sources
Develop a search strategy
Keyword search activity
Subject search activity
Combined keyword and subject searching
Online tutorials
Apply search limits
Run a search in different databases
Supplementary searching
Save your searches
Manage results

The research question

If you are having difficulty finding a suitable topic for your review, try thinking about the following:

Areas of uncertainty
Variations of practice
Assumptions in practice
Existing review topics that may be outdated and could be revised to address a new element

Once you have your topic, put it into the format of a question or questions to be answered by the literature .

Essentially a research question puts forward an hypothesis about a relationship, such as the relationship between an intervention and an outcome. For example: In P (population group) does I (intervention) result in O (outcome)? or Will I perform better than C at achieving O in population P?

For an overview of five main steps to creating a good research question see the online library resources . See also this online video on YouTube.

T he research question will guide the development of your search strategy so it's important that you take time to do some testing of your proposed question. Having done the preliminary scoping searches as noted above will be helpful in understanding the volume of the literature. This guide will provide a sample search for a health/medical topic, as well as for an education/social science topic. Choose which section you would like to work through.

Start with scoping searches

Doing some scoping searches are an essential step to help you understand the quantity of existing literature in your area of interest, and the terminology used in its discussion. This preliminary searching is non-systematic in its nature and is not documented, but helps establish a basis for the subsequent development of a comprehensive search strategy.

Scoping searches usually involve a series of very targeted searches , perhaps looking for your main keywords in the article title. You might also look for examples of review articles on similar topics, as these might be useful for gaining an overview of a facet of your own topic. We can use a search engine such as Google Scholar , large inter-disciplinary databases such as Scopus or Proquest central , or a discipline-specific database that you are familiar with.

Our scoping searches will help us to understand whether our research question has the following elements:

the question addresses a gap in the literature ( has not recently been answered in another review)
the question is specific and focused (and therefore feasible)
the question is answerable in the literature.

Develop a 'gold set' of target papers

Your scoping searches should enable you to locate a 'gold set' of relevant articles that you would expect to use in your review.

This gold set is a curated collection of highly relevant papers for your research question. These articles are important as a reliable foundation for compiling your search terms.

The gold set is also needed to test the strength of the search strategy that you will later develop. This testing is a hallmark of a rigorous and comprehensive search. Unless you test your search on a target set of papers that are definitely relevant, you have no tangible means of assessing whether you have any errors or omissions in your search strategy!

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Next: Search strategies - Health/Medical topic example >>

Literature Review: Frequently Asked Questions

What is a Literature Review?
Finding "The Literature"
Cite Your Sources This link opens in a new window
Frequently Asked Questions
Resources & Examples
How to Get Help

The articles I am including have contradicting ideas, is that okay?

It is okay to have studies contradict one another. You simply acknowledge this in your literature review as supporting evidence that the topic is still open for further study.

How many studies should I include in my literature review?

The number of sources required for an effective literature review varies depending on the topic and the nature of the assignment. Always consult your syllabus to see what the course requirements are. If no requirements are given, you should include enough studies so that all the major points of view on the topic are acknowledged in your literature review.

I am having a hard time finding sources, can I include sources that do not directly tie in with my research question?

No, all items used in your literature review should directly pertain to your research question. If you are not finding quality sources that directly pertain to your topic, you might need to revise your research focus. Always speak to your professor regarding challenges in locating appropriate source material.

Do I have to read all of the articles? Some of them are long!

Yes. An important part of conducting a literature review is carefully reading through (and often annotating) each article used in the literature review. If you need help with this important process, we recommend reviewing the content in the How to Read Scholarly Materials Tutorial .

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Next: Resources & Examples >>
Last Updated: Jun 13, 2023 5:15 PM
URL: https://southern.libguides.com/literaturereview

Literature Syntheis 101

How To Synthesise The Existing Research (With Examples)

By: Derek Jansen (MBA) | Expert Reviewer: Eunice Rautenbach (DTech) | August 2023

One of the most common mistakes that students make when writing a literature review is that they err on the side of describing the existing literature rather than providing a critical synthesis of it. In this post, we’ll unpack what exactly synthesis means and show you how to craft a strong literature synthesis using practical examples.

This post is based on our popular online course, Literature Review Bootcamp . In the course, we walk you through the full process of developing a literature review, step by step. If it’s your first time writing a literature review, you definitely want to use this link to get 50% off the course (limited-time offer).

Overview: Literature Synthesis

What exactly does “synthesis” mean?
Aspect 1: Agreement
Aspect 2: Disagreement
Aspect 3: Key theories
Aspect 4: Contexts
Aspect 5: Methodologies
Bringing it all together

What does “synthesis” actually mean?

As a starting point, let’s quickly define what exactly we mean when we use the term “synthesis” within the context of a literature review.

Simply put, literature synthesis means going beyond just describing what everyone has said and found. Instead, synthesis is about bringing together all the information from various sources to present a cohesive assessment of the current state of knowledge in relation to your study’s research aims and questions .

Put another way, a good synthesis tells the reader exactly where the current research is “at” in terms of the topic you’re interested in – specifically, what’s known , what’s not , and where there’s a need for more research .

So, how do you go about doing this?

Well, there’s no “one right way” when it comes to literature synthesis, but we’ve found that it’s particularly useful to ask yourself five key questions when you’re working on your literature review. Having done so, you can then address them more articulately within your actual write up. So, let’s take a look at each of these questions.

1. Points Of Agreement

The first question that you need to ask yourself is: “Overall, what things seem to be agreed upon by the vast majority of the literature?”

For example, if your research aim is to identify which factors contribute toward job satisfaction, you’ll need to identify which factors are broadly agreed upon and “settled” within the literature. Naturally, there may at times be some lone contrarian that has a radical viewpoint , but, provided that the vast majority of researchers are in agreement, you can put these random outliers to the side. That is, of course, unless your research aims to explore a contrarian viewpoint and there’s a clear justification for doing so.

Identifying what’s broadly agreed upon is an essential starting point for synthesising the literature, because you generally don’t want (or need) to reinvent the wheel or run down a road investigating something that is already well established . So, addressing this question first lays a foundation of “settled” knowledge.

Need a helping hand?

2. Points Of Disagreement

Related to the previous point, but on the other end of the spectrum, is the equally important question: “Where do the disagreements lie?” .

In other words, which things are not well agreed upon by current researchers? It’s important to clarify here that by disagreement, we don’t mean that researchers are (necessarily) fighting over it – just that there are relatively mixed findings within the empirical research , with no firm consensus amongst researchers.

This is a really important question to address as these “disagreements” will often set the stage for the research gap(s). In other words, they provide clues regarding potential opportunities for further research, which your study can then (hopefully) contribute toward filling. If you’re not familiar with the concept of a research gap, be sure to check out our explainer video covering exactly that .

3. Key Theories

The next question you need to ask yourself is: “Which key theories seem to be coming up repeatedly?” .

Within most research spaces, you’ll find that you keep running into a handful of key theories that are referred to over and over again. Apart from identifying these theories, you’ll also need to think about how they’re connected to each other. Specifically, you need to ask yourself:

Are they all covering the same ground or do they have different focal points or underlying assumptions ?
Do some of them feed into each other and if so, is there an opportunity to integrate them into a more cohesive theory?
Do some of them pull in different directions ? If so, why might this be?
Do all of the theories define the key concepts and variables in the same way, or is there some disconnect? If so, what’s the impact of this ?

Simply put, you’ll need to pay careful attention to the key theories in your research area, as they will need to feature within your theoretical framework , which will form a critical component within your final literature review. This will set the foundation for your entire study, so it’s essential that you be critical in this area of your literature synthesis.

If this sounds a bit fluffy, don’t worry. We deep dive into the theoretical framework (as well as the conceptual framework) and look at practical examples in Literature Review Bootcamp . If you’d like to learn more, take advantage of our limited-time offer to get 60% off the standard price.

4. Contexts

The next question that you need to address in your literature synthesis is an important one, and that is: “Which contexts have (and have not) been covered by the existing research?” .

For example, sticking with our earlier hypothetical topic (factors that impact job satisfaction), you may find that most of the research has focused on white-collar , management-level staff within a primarily Western context, but little has been done on blue-collar workers in an Eastern context. Given the significant socio-cultural differences between these two groups, this is an important observation, as it could present a contextual research gap .

In practical terms, this means that you’ll need to carefully assess the context of each piece of literature that you’re engaging with, especially the empirical research (i.e., studies that have collected and analysed real-world data). Ideally, you should keep notes regarding the context of each study in some sort of catalogue or sheet, so that you can easily make sense of this before you start the writing phase. If you’d like, our free literature catalogue worksheet is a great tool for this task.

5. Methodological Approaches

Last but certainly not least, you need to ask yourself the question: “What types of research methodologies have (and haven’t) been used?”

For example, you might find that most studies have approached the topic using qualitative methods such as interviews and thematic analysis. Alternatively, you might find that most studies have used quantitative methods such as online surveys and statistical analysis.

But why does this matter?

Well, it can run in one of two potential directions . If you find that the vast majority of studies use a specific methodological approach, this could provide you with a firm foundation on which to base your own study’s methodology . In other words, you can use the methodologies of similar studies to inform (and justify) your own study’s research design .

On the other hand, you might argue that the lack of diverse methodological approaches presents a research gap , and therefore your study could contribute toward filling that gap by taking a different approach. For example, taking a qualitative approach to a research area that is typically approached quantitatively. Of course, if you’re going to go against the methodological grain, you’ll need to provide a strong justification for why your proposed approach makes sense. Nevertheless, it is something worth at least considering.

Regardless of which route you opt for, you need to pay careful attention to the methodologies used in the relevant studies and provide at least some discussion about this in your write-up. Again, it’s useful to keep track of this on some sort of spreadsheet or catalogue as you digest each article, so consider grabbing a copy of our free literature catalogue if you don’t have anything in place.

Looking at the methodologies of existing, similar studies will help you develop a strong research methodology for your own study.

Bringing It All Together

Alright, so we’ve looked at five important questions that you need to ask (and answer) to help you develop a strong synthesis within your literature review. To recap, these are:

Which things are broadly agreed upon within the current research?
Which things are the subject of disagreement (or at least, present mixed findings)?
Which theories seem to be central to your research topic and how do they relate or compare to each other?
Which contexts have (and haven’t) been covered?
Which methodological approaches are most common?

Importantly, you’re not just asking yourself these questions for the sake of asking them – they’re not just a reflection exercise. You need to weave your answers to them into your actual literature review when you write it up. How exactly you do this will vary from project to project depending on the structure you opt for, but you’ll still need to address them within your literature review, whichever route you go.

The best approach is to spend some time actually writing out your answers to these questions, as opposed to just thinking about them in your head. Putting your thoughts onto paper really helps you flesh out your thinking . As you do this, don’t just write down the answers – instead, think about what they mean in terms of the research gap you’ll present , as well as the methodological approach you’ll take . Your literature synthesis needs to lay the groundwork for these two things, so it’s essential that you link all of it together in your mind, and of course, on paper.

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This post is an extract from our bestselling short course, Literature Review Bootcamp . If you want to work smart, you don't want to miss this .

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What is a Literature Review?

Description.

A literature review, also called a review article or review of literature, surveys the existing research on a topic. The term "literature" in this context refers to published research or scholarship in a particular discipline, rather than "fiction" (like American Literature) or an individual work of literature. In general, literature reviews are most common in the sciences and social sciences.

Literature reviews may be written as standalone works, or as part of a scholarly article or research paper. In either case, the purpose of the review is to summarize and synthesize the key scholarly work that has already been done on the topic at hand. The literature review may also include some analysis and interpretation. A literature review is not a summary of every piece of scholarly research on a topic.

Why are literature reviews useful?

Literature reviews can be very helpful for newer researchers or those unfamiliar with a field by synthesizing the existing research on a given topic, providing the reader with connections and relationships among previous scholarship. Reviews can also be useful to veteran researchers by identifying potentials gaps in the research or steering future research questions toward unexplored areas. If a literature review is part of a scholarly article, it should include an explanation of how the current article adds to the conversation. (From: https://researchguides.drake.edu/englit/criticism)

How is a literature review different from a research article?

Research articles: "are empirical articles that describe one or several related studies on a specific, quantitative, testable research question....they are typically organized into four text sections: Introduction, Methods, Results, Discussion." Source: https://psych.uw.edu/storage/writing_center/litrev.pdf)

Steps for Writing a Literature Review

1. Identify and define the topic that you will be reviewing.

The topic, which is commonly a research question (or problem) of some kind, needs to be identified and defined as clearly as possible. You need to have an idea of what you will be reviewing in order to effectively search for references and to write a coherent summary of the research on it. At this stage it can be helpful to write down a description of the research question, area, or topic that you will be reviewing, as well as to identify any keywords that you will be using to search for relevant research.

2. Conduct a Literature Search

Use a range of keywords to search databases such as PsycINFO and any others that may contain relevant articles. You should focus on peer-reviewed, scholarly articles . In SuperSearch and most databases, you may find it helpful to select the Advanced Search mode and include "literature review" or "review of the literature" in addition to your other search terms. Published books may also be helpful, but keep in mind that peer-reviewed articles are widely considered to be the “gold standard” of scientific research. Read through titles and abstracts, select and obtain articles (that is, download, copy, or print them out), and save your searches as needed. Most of the databases you will need are linked to from the Cowles Library Psychology Research guide .

3. Read through the research that you have found and take notes.

Absorb as much information as you can. Read through the articles and books that you have found, and as you do, take notes. The notes should include anything that will be helpful in advancing your own thinking about the topic and in helping you write the literature review (such as key points, ideas, or even page numbers that index key information). Some references may turn out to be more helpful than others; you may notice patterns or striking contrasts between different sources; and some sources may refer to yet other sources of potential interest. This is often the most time-consuming part of the review process. However, it is also where you get to learn about the topic in great detail. You may want to use a Citation Manager to help you keep track of the citations you have found.

4. Organize your notes and thoughts; create an outline.

At this stage, you are close to writing the review itself. However, it is often helpful to first reflect on all the reading that you have done. What patterns stand out? Do the different sources converge on a consensus? Or not? What unresolved questions still remain? You should look over your notes (it may also be helpful to reorganize them), and as you do, to think about how you will present this research in your literature review. Are you going to summarize or critically evaluate? Are you going to use a chronological or other type of organizational structure? It can also be helpful to create an outline of how your literature review will be structured.

5. Write the literature review itself and edit and revise as needed.

The final stage involves writing. When writing, keep in mind that literature reviews are generally characterized by a summary style in which prior research is described sufficiently to explain critical findings but does not include a high level of detail (if readers want to learn about all the specific details of a study, then they can look up the references that you cite and read the original articles themselves). However, the degree of emphasis that is given to individual studies may vary (more or less detail may be warranted depending on how critical or unique a given study was). After you have written a first draft, you should read it carefully and then edit and revise as needed. You may need to repeat this process more than once. It may be helpful to have another person read through your draft(s) and provide feedback.

6. Incorporate the literature review into your research paper draft. (note: this step is only if you are using the literature review to write a research paper. Many times the literature review is an end unto itself).

After the literature review is complete, you should incorporate it into your research paper (if you are writing the review as one component of a larger paper). Depending on the stage at which your paper is at, this may involve merging your literature review into a partially complete Introduction section, writing the rest of the paper around the literature review, or other processes.

These steps were taken from: https://psychology.ucsd.edu/undergraduate-program/undergraduate-resources/academic-writing-resources/writing-research-papers/writing-lit-review.html#6.-Incorporate-the-literature-r

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Consider This

What is the specific thesis, problem, or research question that my literature review aims to define?
What type of literature review am I conducting? Am I looking at issues of theory, methodology, policy, quantitative research (e.g. interviews, observations), qualitative research (e.g., studies, surveys, statistics)?
What is the scope of my literature review? What types of publications am I using (e.g., journals, books, government documents)?
What discipline am I working in (e.g. Public Health, Nursing, Kinesiology etc.)?
Has my search for sources been wide enough to ensure that I have found all the relevant material?
Has it been narrow enough to exclude irrelevant material?
Is the number of sources I've used appropriate for the length of my paper (i.e. if your literature review is part of a larger paper or assignment)?
Have I critically analyzed the resources I found?
How will I avoid just listing and summarizing resources? Do I assess them, discussing strengths and weaknesses?
Have I cited and discussed studies contrary to my perspective?
Will the reader find my literature review relevant, appropriate, and or useful?

FIRST, ASK YOUR PROFESSOR!

The format of a literature review may vary from discipline to discipline and from assignment to assignment. However, a literature review must do these things:

Be organized around and related directly to the thesis or research question you are developing
Synthesize results into a summary of what is and is not known
Identify problematic areas or areas of controversy in the literature
Formulate questions or issues that need further research

Remember! A literature review is not a list describing or summarizing one piece of literature after another.

Try and avoid starting every paragraph with the name of a researcher or the title of the work. Rather, try organizing the literature review into sections that present themes or identify trends, including relevant theories. You are not trying to list all the material published on a topic, but to synthesize and evaluate it according to the guiding concept of your thesis or research question.

Consider These For Each Source

Has the author formulated a problem/issue?
Is the problem/issue clearly defined and is its significance (scope, severity, and relevance) clearly established?
Could the problem/issue have been approached more effectively and or from another perspective?
What is the author's research orientation (e.g., interpretive, critical science, combination)?
What is the author's theoretical framework (e.g., psychological, developmental, feminist)?
What is the relationship between #4 and #5?
Has the author evaluated the literature relevant to the topic (i.e. does the author include a literature review and or provide sources that take positions she/he does not agree with)?
How accurate and valid are the measurements, statistics or data the author has provided?
Is the analysis of the measurements, statistics or data accurate and relevant to the research question?
Are the conclusions validly based upon the data and analysis?
· How does the author structure the argument? Can you retrace the steps he/she takes and analyze the flow of the argument to see if it progresses logically?
In what ways does this piece contribute to our understanding of the topic, and in what ways is it useful? What are the strengths and limitations?
How does this book or article relate to my thesis or research question?
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Conducting a literature review: why do a literature review, why do a literature review.

How To Find "The Literature"
Found it -- Now What?

Besides the obvious reason for students -- because it is assigned! -- a literature review helps you explore the research that has come before you, to see how your research question has (or has not) already been addressed.

You identify:

core research in the field
experts in the subject area
methodology you may want to use (or avoid)
gaps in knowledge -- or where your research would fit in

It Also Helps You:

Publish and share your findings
Justify requests for grants and other funding
Identify best practices to inform practice
Set wider context for a program evaluation
Compile information to support community organizing

Great brief overview, from NCSU

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Organizing Your Research

Organizing and Sharing
Creating a Bibliography
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Frequently Asked Questions About Literature Reviews

If you feel overwhelmed or confused about writing a literature review, you are not alone! Open or download the pdf below for answers to frequently asked questions.

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COMMENTS

Top 10 Questions for a Complete Literature Review
Careful skimming of literature introduces the readers to relevant terminologies frequently used in context of their work. Literature review assists in recognizing related research findings and relevant theories. Furthermore, it aids in pinpointing the methodologies that one may adopt for research. 5 Steps to Begin the Literature Review
1. Identify the Question
Refine by Narrowing (Once you begin to understand the topic and the issues surrounding it, you can start to narrow your topic and develop a research question. Do this by asking the 6 journalistic question words. Ask yourself these 6 questions . These 6 journalistic question words can help you narrow your focus from a broad topic to a specific ...
Conducting a Literature Review: Research Question
Your research question should be clear, focused, and complex enough to allow for adequate research and analysis. Most importantly, your research question should be interesting to you - you will be spending a great deal of time researching and writing so you should be eager to learn more about it. Your problem statement or research question:
How to Write a Literature Review
Examples of literature reviews. Step 1 - Search for relevant literature. Step 2 - Evaluate and select sources. Step 3 - Identify themes, debates, and gaps. Step 4 - Outline your literature review's structure. Step 5 - Write your literature review.
Steps in Conducting a Literature Review
A literature review is an integrated analysis-- not just a summary-- of scholarly writings and other relevant evidence related directly to your research question.That is, it represents a synthesis of the evidence that provides background information on your topic and shows a association between the evidence and your research question.
PDF Writing an Effective Literature Review
usually be some element of literature review in the introduction. And if you have to write a grant application, you will be expected to review the work that has already been done in your area. However, just because we all have to do this a lot, doesn't make the task any easier, and indeed for many, writing a literature review is one of
How To Write A Literature Review
1. Outline and identify the purpose of a literature review. As a first step on how to write a literature review, you must know what the research question or topic is and what shape you want your literature review to take. Ensure you understand the research topic inside out, or else seek clarifications.
LibGuides: Literature Reviews: 1. Define your research question
Identifying a well-defined research question is the first step in the literature review process. For undergraduates, professors will often assign a broad topic for a literature review assignment. You will need to more narrowly define your question before you can begin the research process. Do a preliminary search on your topic in either Google ...
Writing a Literature Review: Planning Your Review
Conducting Your Literature Review by Susanne Hempel. This book is a step-by-step guide to writing a literature review, and includes tips for modifying the process as needed depending on your audience, purpose, and goals. The lessons in this book can be applied to writing the background section for a thesis or an original research publication.
Developing a Research Question
DEVELOPING A RESEARCH QUESTION. Before searching for sources, you need to formulate a Research Question — this is what you are trying to answer using the existing academic literature. The Research Question pinpoints the focus of the review. Your first step involves choosing, exploring, and focusing a topic.
5. The Literature Review
A literature review may consist of simply a summary of key sources, but in the social sciences, a literature review usually has an organizational pattern and combines both summary and synthesis, often within specific conceptual categories.A summary is a recap of the important information of the source, but a synthesis is a re-organization, or a reshuffling, of that information in a way that ...
Writing a Literature Review: Asking Good Questions
This is, of course, a large question. To begin answering it, Essid would develop a set of keywords for the library search, such as "multiple intelligence," "spatial intelligence," or maybe "visual learner." Good keywords help locate sources to begin answering the question. Smaller dependent questions should then arise for a writer.
Define your research question
Define your research question. Defining your research question is the key to beginning, so while you may be clear on the area you want to study, chances are there are some nuances that you need to think through. Part of this process may require exploratory searching in databases so that you can see what's already been published on your topic.
Planning Your Review
The Literature Review: Six Steps to Success by Lawrence A. Machi; Brenda T. McEvoy. ISBN: 9781071852903. Publication Date: 2022-01-17. The essential guide--updated, expanded, and easier to use than ever. Using the six-step model, you'll work seamlessly to narrow your research topic, focus your literature search, negotiate the myriad of books ...
Develop a Research Question
The Research Question. Having a clear, concise, and focused research question is essential because it sets the boundaries and direction of your work. As you explore the literature, ask yourself, What is known about the topic? What are the issues or debates surrounding the topic? Did you notice any gaps or unanswered questions?
Developing a Question
Step 2: Develop a Searchable Question. When developing a searchable question, it helps to identify the key concepts of your research proposal. A clear and precise search question can be used to develop search terms during the literature searching process. There are a number of frameworks available to use to help you break your question into its ...
Researching for your literature review: Before you start
The research question will guide the development of your search strategy so it's important that you take time to do some testing of your proposed question. Having done the preliminary scoping searches as noted above will be helpful in understanding the volume of the literature. This guide will provide a sample search for a health/medical topic ...
Frequently Asked Questions
Yes. An important part of conducting a literature review is carefully reading through (and often annotating) each article used in the literature review. If you need help with this important process, we recommend reviewing the content in the How to Read Scholarly Materials Tutorial . Last Updated: Jun 13, 2023 5:15 PM.
Literature Synthesis 101: How To Guide + Examples
1. Points Of Agreement. The first question that you need to ask yourself is: "Overall, what things seem to be agreed upon by the vast majority of the literature?" For example, if your research aim is to identify which factors contribute toward job satisfaction, you'll need to identify which factors are broadly agreed upon and "settled" within the literature.
Research Guides: Psychology: Conducting a Literature Review
Steps for Writing a Literature Review. 1. Identify and define the topic that you will be reviewing. The topic, which is commonly a research question (or problem) of some kind, needs to be identified and defined as clearly as possible. You need to have an idea of what you will be reviewing in order to effectively search for references and to ...
LibGuides: Literature Review How To: Things To Consider
However, a literature review must do these things: Be organized around and related directly to the thesis or research question you are developing. Synthesize results into a summary of what is and is not known. Identify problematic areas or areas of controversy in the literature. Formulate questions or issues that need further research.
Why Do A Literature Review?
Besides the obvious reason for students -- because it is assigned! -- a literature review helps you explore the research that has come before you, to see how your research question has (or has not) already been addressed. You identify: core research in the field. experts in the subject area. methodology you may want to use (or avoid)
LibGuides: Organizing Your Research: Literature Review FAQ
Frequently Asked Questions About Literature Reviews. If you feel overwhelmed or confused about writing a literature review, you are not alone! Open or download the pdf below for answers to frequently asked questions. Literature Review FAQ << Previous: Creating a Bibliography;
Welcome to the Purdue Online Writing Lab
The Purdue On-Campus Writing Lab and Purdue Online Writing Lab assist clients in their development as writers—no matter what their skill level—with on-campus consultations, online participation, and community engagement. The Purdue Writing Lab serves the Purdue, West Lafayette, campus and coordinates with local literacy initiatives. The ...

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1. Points Of Agreement

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2. Points Of Disagreement

3. Key Theories

4. Contexts

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Bringing It All Together

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What is a Literature Review?

Why are literature reviews useful?

How is a literature review different from a research article?

Steps for Writing a Literature Review

Literature Review How To

Consider This