doctoral dissertation literature review

Literature Review Example/Sample

Detailed Walkthrough + Free Literature Review Template

If you’re working on a dissertation or thesis and are looking for an example of a strong literature review chapter , you’ve come to the right place.

In this video, we walk you through an A-grade literature review from a dissertation that earned full distinction . We start off by discussing the five core sections of a literature review chapter by unpacking our free literature review template . This includes:

• The literature review opening/ introduction section
• The theoretical framework (or foundation of theory)
• The empirical research
• The research gap
• The closing section

We then progress to the sample literature review (from an A-grade Master’s-level dissertation) to show how these concepts are applied in the literature review chapter. You can access the free resources mentioned in this video below.

PS – If you’re working on a dissertation, be sure to also check out our collection of dissertation and thesis examples here .

FAQ: Literature Review Example

Literature review example: frequently asked questions, is the sample literature review real.

Yes. The literature review example is an extract from a Master’s-level dissertation for an MBA program. It has not been edited in any way.

Can I replicate this literature review for my dissertation?

As we discuss in the video, every literature review will be slightly different, depending on the university’s unique requirements, as well as the nature of the research itself. Therefore, you’ll need to tailor your literature review to suit your specific context.

You can learn more about the basics of writing a literature review here .

Where can I find more examples of literature reviews?

The best place to find more examples of literature review chapters would be within dissertation/thesis databases. These databases include dissertations, theses and research projects that have successfully passed the assessment criteria for the respective university, meaning that you have at least some sort of quality assurance. 

The Open Access Thesis Database (OATD) is a good starting point. 

How do I get the literature review template?

You can access our free literature review chapter template here .

Is the template really free?

Yes. There is no cost for the template and you are free to use it as you wish. 

Psst… there’s more!

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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• CAREER FEATURE
• 04 December 2020
• Correction 09 December 2020

How to write a superb literature review

Andy Tay is a freelance writer based in Singapore.

You can also search for this author in PubMed   Google Scholar

Literature reviews are important resources for scientists. They provide historical context for a field while offering opinions on its future trajectory. Creating them can provide inspiration for one’s own research, as well as some practice in writing. But few scientists are trained in how to write a review — or in what constitutes an excellent one. Even picking the appropriate software to use can be an involved decision (see ‘Tools and techniques’). So Nature asked editors and working scientists with well-cited reviews for their tips.

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doi: https://doi.org/10.1038/d41586-020-03422-x

Interviews have been edited for length and clarity.

Updates & Corrections

Correction 09 December 2020 : An earlier version of the tables in this article included some incorrect details about the programs Zotero, Endnote and Manubot. These have now been corrected.

Hsing, I.-M., Xu, Y. & Zhao, W. Electroanalysis 19 , 755–768 (2007).

Article   Google Scholar  

Ledesma, H. A. et al. Nature Nanotechnol. 14 , 645–657 (2019).

Article   PubMed   Google Scholar  

Brahlek, M., Koirala, N., Bansal, N. & Oh, S. Solid State Commun. 215–216 , 54–62 (2015).

Choi, Y. & Lee, S. Y. Nature Rev. Chem . https://doi.org/10.1038/s41570-020-00221-w (2020).

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Dissertation Research—Planning, Researching, Publishing

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Video: Literature Reviews: an Overview for Graduate Students

• What is a literature review?
• What purpose does it serve in research?
• What should you expect when writing one?

Watch this short video to find answers to these questions!

(Source:  NCSU Libraries)

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• What Is a PhD Literature Review?
• Doing a PhD

A literature review is a critical analysis of published academic literature, mainly peer-reviewed papers and books, on a specific topic. This isn’t just a list of published studies but is a document summarising and critically appraising the main work by researchers in the field, the key findings, limitations and gaps identified in the knowledge.

• The aim of a literature review is to critically assess the literature in your chosen field of research and be able to present an overview of the current knowledge gained from previous work.
• By the conclusion of your literature review, you as a researcher should have identified the gaps in knowledge in your field; i.e. the unanswered research questions which your PhD project will help to answer.
• Quality not quantity is the approach to use when writing a literature review for a PhD but as a general rule of thumb, most are between 6,000 and 12,000 words.

What Is the Purpose of a Literature Review?

First, to be clear on what a PhD literature review is NOT: it is not a ‘paper by paper’ summary of what others have done in your field. All you’re doing here is listing out all the papers and book chapters you’ve found with some text joining things together. This is a common mistake made by PhD students early on in their research project. This is a sign of poor academic writing and if it’s not picked up by your supervisor, it’ll definitely be by your examiners.

The biggest issue your examiners will have here is that you won’t have demonstrated an application of critical thinking when examining existing knowledge from previous research. This is an important part of the research process as a PhD student. It’s needed to show where the gaps in knowledge were, and how then you were able to identify the novelty of each research question and subsequent work.

The five main outcomes from carrying out a good literature review should be:

• An understanding of what has been published in your subject area of research,
• An appreciation of the leading research groups and authors in your field and their key contributions to the research topic,
• Knowledge of the key theories in your field,
• Knowledge of the main research areas within your field of interest,
• A clear understanding of the research gap in knowledge that will help to motivate your PhD research questions .

When assessing the academic papers or books that you’ve come across, you must think about the strengths and weaknesses of them; what was novel about their work and what were the limitations? Are different sources of relevant literature coming to similar conclusions and complementing each other, or are you seeing different outcomes on the same topic by different researchers?

When Should I Write My Literature Review?

In the structure of your PhD thesis , your literature review is effectively your first main chapter. It’s at the start of your thesis and should, therefore, be a task you perform at the start of your research. After all, you need to have reviewed the literature to work out how your research can contribute novel findings to your area of research. Sometimes, however, in particular when you apply for a PhD project with a pre-defined research title and research questions, your supervisor may already know where the gaps in knowledge are.

You may be tempted to skip the literature review and dive straight into tackling the set questions (then completing the review at the end before thesis submission) but we strongly advise against this. Whilst your supervisor will be very familiar with the area, you as a doctoral student will not be and so it is essential that you gain this understanding before getting into the research.

How Long Should the Literature Review Be?

As your literature review will be one of your main thesis chapters, it needs to be a substantial body of work. It’s not a good strategy to have a thesis writing process here based on a specific word count, but know that most reviews are typically between 6,000 and 12,000 words. The length will depend on how much relevant material has previously been published in your field.

A point to remember though is that the review needs to be easy to read and avoid being filled with unnecessary information; in your search of selected literature, consider filtering out publications that don’t appear to add anything novel to the discussion – this might be useful in fields with hundreds of papers.

How Do I Write the Literature Review?

Before you start writing your literature review, you need to be clear on the topic you are researching.

1. Evaluating and Selecting the Publications

After completing your literature search and downloading all the papers you find, you may find that you have a lot of papers to read through ! You may find that you have so many papers that it’s unreasonable to read through all of them in their entirety, so you need to find a way to understand what they’re about and decide if they’re important quickly.

A good starting point is to read the abstract of the paper to gauge if it is useful and, as you do so, consider the following questions in your mind:

• What was the overarching aim of the paper?
• What was the methodology used by the authors?
• Was this an experimental study or was this more theoretical in its approach?
• What were the results and what did the authors conclude in their paper?
• How does the data presented in this paper relate to other publications within this field?
• Does it add new knowledge, does it raise more questions or does it confirm what is already known in your field? What is the key concept that the study described?
• What are the strengths and weaknesses of this study, and in particular, what are the limitations?

2. Identifying Themes

To put together the structure of your literature review you need to identify the common themes that emerge from the collective papers and books that you have read. Key things to think about are:

• Are there common methodologies different authors have used or have these changed over time?
• Do the research questions change over time or are the key question’s still unanswered?
• Is there general agreement between different research groups in the main results and outcomes, or do different authors provide differing points of view and different conclusions?
• What are the key papers in your field that have had the biggest impact on the research?
• Have different publications identified similar weaknesses or limitations or gaps in the knowledge that still need to be addressed?

Structuring and Writing Your Literature Review

There are several ways in which you can structure a literature review and this may depend on if, for example, your project is a science or non-science based PhD.

One approach may be to tell a story about how your research area has developed over time. You need to be careful here that you don’t just describe the different papers published in chronological order but that you discuss how different studies have motivated subsequent studies, how the knowledge has developed over time in your field, concluding with what is currently known, and what is currently not understood.

Alternatively, you may find from reading your papers that common themes emerge and it may be easier to develop your review around these, i.e. a thematic review. For example, if you are writing up about bridge design, you may structure the review around the themes of regulation, analysis, and sustainability.

As another approach, you might want to talk about the different research methodologies that have been used. You could then compare and contrast the results and ultimate conclusions that have been drawn from each.

As with all your chapters in your thesis, your literature review will be broken up into three key headings, with the basic structure being the introduction, the main body and conclusion. Within the main body, you will use several subheadings to separate out the topics depending on if you’re structuring it by the time period, the methods used or the common themes that have emerged.

The important thing to think about as you write your main body of text is to summarise the key takeaway messages from each research paper and how they come together to give one or more conclusions. Don’t just stop at summarising the papers though, instead continue on to give your analysis and your opinion on how these previous publications fit into the wider research field and where they have an impact. Emphasise the strengths of the studies you have evaluated also be clear on the limitations of previous work how these may have influenced the results and conclusions of the studies.

In your concluding paragraphs focus your discussion on how your critical evaluation of literature has helped you identify unanswered research questions and how you plan to address these in your PhD project. State the research problem you’re going to address and end with the overarching aim and key objectives of your work .

When writing at a graduate level, you have to take a critical approach when reading existing literature in your field to determine if and how it added value to existing knowledge. You may find that a large number of the papers on your reference list have the right academic context but are essentially saying the same thing. As a graduate student, you’ll need to take a methodological approach to work through this existing research to identify what is relevant literature and what is not.

You then need to go one step further to interpret and articulate the current state of what is known, based on existing theories, and where the research gaps are. It is these gaps in the literature that you will address in your own research project.

• Decide on a research area and an associated research question.
• Decide on the extent of your scope and start looking for literature.
• Review and evaluate the literature.
• Plan an outline for your literature review and start writing it.

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How to Conduct a Literature Review: A Guide for Graduate Students

• Let's Get Started!
• Traditional or Narrative Reviews
• Systematic Reviews
• Typology of Reviews
• Literature Review Resources
• Developing a Search Strategy
• What Literature to Search
• Where to Search: Indexes and Databases
• Finding articles: Libkey Nomad
• Finding Dissertations and Theses
• Extending Your Searching with Citation Chains
• Forward Citation Chains - Cited Reference Searching
• Keeping up with the Literature
• Managing Your References
• Need More Information?

Bookmark This Guide!

https://instr.iastate.libguides.com/gradlitrev

Where to Get Help

Librarians at ISU are subject experts who can help with your research and course needs. There are experts available for every discipline at ISU who are ready to assist you with your information needs!

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Find Your Librarian

   “Google can bring you back 100,000 answers. A librarian can bring you back the right one.” - Neil Gaiman

The literature review is an important part of your thesis or dissertation. It is a survey of existing literature that provides context for your research contribution, and demonstrates your subject knowledge. It is also the way to tell the story of how your research extends knowledge in your field.

The first step to writing a successful literature review is knowing how to find and evaluate literature in your field. This guide is designed to introduce you to tools and give you skills you can use to effectively find the resources needed for your literature review.

Before getting started, familiarize yourself with some essential resources provided by the Graduate College:

• Dissertation and Thesis Information
• Center for Communication Excellence
• Graduate College Handbook

Below are some questions that you can discuss with your advisor as you begin your research:

Questions to ask as you think about your literature review:

What is my research question.

Choosing a valid research question is something you will need to discuss with your academic advisor and/or POS committee. Ideas for your topic may come from your coursework, lab rotations, or work as a research assistant. Having a specific research topic allows you to focus your research on a project that is manageable. Beginning work on your literature review can help narrow your topic.

What kind of literature review is appropriate for my research question?

Depending on your area of research, the type of literature review you do for your thesis will vary. Consult with your advisor about the requirements for your discipline. You can view theses and dissertations from your field in the library's Digital Repository can give you ideas about how your literature review should be structured.

What kind of literature should I use?

The kind of literature you use for your thesis will depend on your discipline. The Library has developed a list of Guides by Subject with discipline-specific resources. For a given subject area, look for the guide titles "[Discipline] Research Guide." You may also consult our liaison librarians for information about the literature available your research area.

How will I make sure that I find all the appropriate information that informs my research?

Consulting multiple sources of information is the best way to insure that you have done a comprehensive search of the literature in your area. The What Literature to Search tab has information about the types of resources you may need to search. You may also consult our liaison librarians for assistance with identifying resources..

How will I evaluate the literature to include trustworthy information and eliminate unnecessary or untrustworthy information?

While you are searching for relevant information about your topic you will need to think about the accuracy of the information, whether the information is from a reputable source, whether it is objective and current. Our guides about Evaluating Scholarly Books and Articles and Evaluating Websites will give you criteria to use when evaluating resources.

How should I organize my literature? What citation management program is best for me?

Citation management software can help you organize your references in folders and/or with tags. You can also annotate and highlight the PDFs within the software and usually the notes are searchable. To choose a good citation management software, you need to consider which one can be streamlined with your literature search and writing process. Here is a guide page comparing EndNote, Mendeley & Zotero. The Library also has guides for three of the major citation management tools:

• EndNote & EndNote Web Guide
• Mendeley Guide
• Getting Started with Zotero

What steps should I take to ensure academic integrity?

The best way to ensure academic integrity is to familiarize yourself with different types of intentional and unintentional plagiarism and learn about the University's standards for academic integrity. Start with this guide . The Library also has a guide about your rights and responsibilities regarding copyrighted images and figures that you include in your thesis.

Where can I find writing and editing help?

Writing and editing help is available at the Graduate College's Center for Communication Excellence . The CCE offers individual consultations, peer writing groups, workshops and seminars to help you improve your writing.

Where can I find I find formatting standards? Technical support?

The Graduate College has a Dissertation/ Thesis website with extensive examples and videos about formatting theses and dissertations. The site also has templates and formatting instructions for Word and LaTex .

What citation style should I use?

The Graduate College thesis guidelines require that you "use a consistent, current academic style for your discipline." The Library has a Citation Style Guides resource you can use for guidance on specific citation styles. If you are not sure, please consult your advisor or liaison librarians for help.

Adapted from The Literature Review: For Dissertations, by the University of Michigan Library. Available: https://guides.lib.umich.edu/dissertationlitreview

Center for Communication Excellence/ Library Workshop Slides

Slides from the CCE/ Library Workshop "A Citation Here...A Citation There...Pretty Soon You'll Have a Lit Review" held on February 21, 2024 are below:

• CCE Workshop February 21, 2024
• Next: Types of Literature Reviews >>

The library's collections and services are available to all ISU students, faculty, and staff and Parks Library is open to the public .

• Last Updated: Mar 14, 2024 12:15 PM
• URL: https://instr.iastate.libguides.com/gradlitrev

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How to write a literature review for a dissertation, published by steve tippins on july 5, 2019 july 5, 2019.

Last Updated on: 2nd February 2024, 04:45 am

Chapter 2 of your dissertation, your literature review, may be the longest chapter. It is not uncommon to see lit reviews in the 40- to 60-page range. That may seem daunting, but I contend that the literature review could be the easiest part of your dissertation.

It is also foundational. To be able to select an appropriate research topic and craft expert research questions, you’ll need to know what has already been discovered and what mysteries remain. 

Remember, your degree is meant to indicate your achieving the highest level of expertise in your area of study. The lit review for your dissertation could very well form the foundation for your entire career.

In this article, I’ll give you detailed instructions for how to write the literature review of your dissertation without stress. I’ll also provide a sample outline.

When to Write the Literature Review for your Dissertation

Though technically Chapter 2 of your dissertation, many students write their literature review first. Why? Because having a solid foundation in the research informs the way you write Chapter 1.

Also, when writing Chapter 1, you’ll need to become familiar with the literature anyway. It only makes sense to write down what you learn to form the start of your lit review.

Some institutions even encourage students to write Chapter 2 first. But it’s important to talk with your Chair to see what he or she recommends.

How Long Should a Literature Review Be?

There is no set length for a literature review. The length largely depends on your area of study. However, I have found that most literature reviews are between 40-60 pages.

If your literature review is significantly shorter than that, ask yourself (a) if there is other relevant research that you have not explored, or (b) if you have provided enough of a discussion about the information you did explore.

Preparing to Write the Literature Review for your Dissertation

1. Search Using Key Terms

Most people start their lit review searching appropriate databases using key terms. For example, if you’re researching the impact of social media on adult learning, some key terms you would use at the start of your search would be adult learning, androgogy, social media, and “learning and social media” together. 

If your topic was the impact of natural disasters on stock prices, then you would need to explore all types of natural disasters, other market factors that impact stock prices, and the methodologies used. 

You can save time by skimming the abstracts first; if the article is not what you thought it might be you can move on quickly.

Once you start finding articles using key terms, two different things will usually happen: you will find new key terms to search, and the articles will lead you directly to other articles related to what you are studying. It becomes like a snowball rolling downhill. 

Note that the vast majority of your sources should be articles from peer-reviewed journals. 

2. Immerse Yourself in the Literature

When people ask what they should do first for their dissertation the most common answer is “immerse yourself in the literature.” What exactly does this mean?

Think of this stage as a trip into the quiet heart of the forest. Your questions are at the center of this journey, and you’ll need to help your reader understand which trees — which particular theories, studies, and lines of reasoning — got you there. 

There are lots of trees in this particular forest, but there are particular trees that mark your path.  What makes them unique? What about J’s methodology made you choose that study over Y’s? How did B’s argument triumph over A’s, thus leading you to C’s theory? 

You are showing your reader that you’ve fully explored the forest of your topic and chosen this particular path, leading to these particular questions (your research questions), for these particular reasons.

3. Consider Gaps in the Research

The gaps in the research are where current knowledge ends and your study begins. In order to build a case for doing your study, you must demonstrate that it:

• Is worthy of doctoral-level research, and
• Has not already been studied

Defining the gaps in the literature should help accomplish both aims. Identifying studies on related topics helps make the case that your study is relevant, since other researchers have conducted related studies.

And showing where they fall short will help make the case that your study is the appropriate next step. Pay special attention to the recommendations for further research that the authors of studies make.

4. Organize What You Find

As you find articles, you will have to come up with methods to organize what you find. 

Whether you find a computer-based system (three popular systems are Zotero, endNote, and Mendeley) or some sort of manual system such as index cards, you need to devise a method where you can easily group your references by subject and methodology and find what you are looking for when you need it. It is very frustrating to know you have found an article that supports a point that you are trying to make, but you can’t find the article!

One way to save time and keep things organized is to cut and paste relevant quotations (and their references) under topic headings. You’ll be able to rearrange and do some paraphrasing later, but if you’ve got the quotations and the citations that are important to you already embedded in your text, you’ll have an easier time of it.  

If you choose this method, be sure to list the whole reference on the reference/bibliography page so you don’t have to do this page separately later. Some students use Scrivener for this purpose, as it offers a clear way to view and easily navigate to all sections of a written document.

Need help with your literature review? Take a look at my dissertation coaching and dissertation editing services.

How to Write the Literature Review for your Dissertation

Once you have gathered a sufficient number of pertinent references, you’ll need to string them together in a way that tells your story. Explain what previous researchers have done by telling the story of how knowledge on this topic has evolved. Here, you are laying the support for your topic and showing that your research questions need to be answered. Let’s dive into how to actually write your dissertation’s literature review.

1. Create an Outline

If you’ve created a system for keeping track of the sources you’ve found, you likely already have the bones of an outline. Even if not, it may be relatively easy to see how to organize it all. The main thing to remember is, keep it simple and don’t overthink it. There are several ways to organize your dissertation’s literature review, and I’ll discuss some of the most common below:

• By topic. This is by far the most common approach, and it’s the one I recommend unless there’s a clear reason to do otherwise. Topics are things like servant leadership, transformational leadership, employee retention, organizational knowledge, etc. Organizing by topic is fairly simple and it makes sense to the reader.
• Chronologically. In some cases, it makes sense to tell the story of how knowledge and thought on a given subject have evolved. In this case, sub-sections may indicate important advances or contributions. 
• By methodology. Some students organize their literature review by the methodology of the studies. This makes sense when conducting a mixed-methods study, and in cases where methodology is at the forefront.

2. Write the Paragraphs 

I said earlier that I thought the lit review was the easiest part to write, and here is why. When you write about the findings of others, you can do it in small, discrete time periods. You go down the path awhile, then you rest. 

Once you have many small pieces written, you can then piece them together. You can write each piece without worrying about the flow of the chapter; that can all be done at the end when you put the jigsaw puzzle of references together.

The literature review is a demonstration of your ability to think critically about existing research and build meaningfully on it in your study. Avoid simply stating what other researchers said. Find the relationships between studies, note where researchers agree and disagree, and– especiallyy–relate it to your own study. 

Pay special attention to controversial issues, and don’t be afraid to give space to researchers who you disagree with. Including differing opinions will only strengthen the credibility of your study, as it demonstrates that you’re willing to consider all sides.

4. Justify the Methodology

In addition to discussing studies related to your topic, include some background on the methodology you will be using. This is especially important if you are using a new or little-used methodology, as it may help get committee members onboard. 

I have seen several students get slowed down in the process trying to get committees to buy into the planned methodology. Providing references and samples of where the planned methodology has been used makes the job of the committee easier, and it will also help your reader trust the outcomes.

Advice for Writing Your Dissertation’s Literature Review

• Remember to relate each section back to your study (your Problem and Purpose statements).
• Discuss conflicting findings or theoretical positions. Avoid the temptation to only include research that you agree with.
• Sections should flow together, the way sections of a chapter in a nonfiction book do. They should relate to each other and relate back to the purpose of your study. Avoid making each section an island.
• Discuss how each study or theory relates to the others in that section.
• Avoid relying on direct quotes–you should demonstrate that you understand the study and can describe it accurately.

Sample Outline of a Literature Review (Dissertation Chapter 2)

Here is a sample outline, with some brief instructions. Note that your institution probably has specific requirements for the structure of your dissertation’s literature review. But to give you a general idea, I’ve provided a sample outline of a dissertation ’s literature review here.

• Introduction
• State the problem and the purpose of the study
• Give a brief synopsis of literature that establishes the relevance of the problem
• Very briefly summarize the major sections of your chapter

Documentation of Literature Search Strategy

• Include the library databases and search engines you used
• List the key terms you used
• Describe the scope (qualitative) or iterative process (quantitative). Explain why and based on what criteria you selected the articles you did.

Literature Review (this is the meat of the chapter)

• Sub-topic a
• Sub-topic b
• Sub-topic c

See below for an example of what this outline might look like.

How to Write a Literature Review for a Dissertation: An Example 

Let’s take an example that will make the organization, and the outline, a little bit more clear. Below, I’ll fill out the example outline based on the topics discussed.

If your questions have to do with the impact of the servant leadership style of management on employee retention, you may want to saunter down the path of servant leadership first, learning of its origins , its principles , its values , and its methods . 

You’ll note the different ways the style is employed based on different practitioners’ perspectives or circumstances and how studies have evaluated these differences. Researchers will draw conclusions that you’ll want to note, and these conclusions will lead you to your next questions. 

Next, you’ll want to wander into the territory of management styles to discover their impact on employee retention in general. Does management style really make a difference in employee retention, and if so, what factors, exactly, make this impact?

Employee retention is its own path, and you’ll discover factors, internal and external, that encourage people to stick with their jobs.

You’ll likely find paradoxes and contradictions in here that just bring up more questions. How do internal and external factors mix and match? How can employers influence both psychology and context ? Is it of benefit to try and do so?

At first, these three paths seem somewhat remote from one another, but your interest is where the three converge. Taking the lit review section by section like this before tying it all together will not only make it more manageable to write but will help you lead your reader down the same path you traveled, thereby increasing clarity. 

Example Outline

So the main sections of your literature review might look something like this:

• Literature Search Strategy
• Conceptual Framework or Theoretical Foundation
• Literature that supports your methodology
• Origins, principles, values
• Seminal research
• Current research
• Management Styles’ Impact on employee retention
• Internal Factors
• External Factors
• Influencing psychology and context
• Summary and Conclusion

Final Thoughts on Writing Your Dissertation’s Chapter 2

The lit review provides the foundation for your study and perhaps for your career. Spend time reading and getting lost in the literature. The “aha” moments will come where you see how everything fits together. 

At that point, it will just be a matter of clearly recording and tracing your path, keeping your references organized, and conveying clearly how your research questions are a natural evolution of previous work that has been done.

PS. If you’re struggling with your literature review, I can help. I offer dissertation coaching and editing services.

Steve Tippins

Steve Tippins, PhD, has thrived in academia for over thirty years. He continues to love teaching in addition to coaching recent PhD graduates as well as students writing their dissertations. Learn more about his dissertation coaching and career coaching services. Book a Free Consultation with Steve Tippins

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Literature reviews

Writing a literature review.

The following guide has been created for you by the  Student Learning Advisory Service . For more detailed guidance and to speak to one of our advisers, please book an  appointment  or join one of our  workshops . Alternatively, have a look at our  SkillBuilder  skills videos.   

Preparing a literature review involves:

• Searching for reliable, accurate and up-to-date material on a topic or subject
• Reading and summarising the key points from this literature
• Synthesising these key ideas, theories and concepts into a summary of what is known
• Discussing and evaluating these ideas, theories and concepts
• Identifying particular areas of debate or controversy
• Preparing the ground for the application of these ideas to new research

Finding and choosing material

Ensure you are clear on what you are looking for. ask yourself:.

• What is the specific question, topic or focus of my assignment?
• What kind of material do I need (e.g. theory, policy, empirical data)?
• What type of literature is available (e.g. journals, books, government documents)?

What kind of literature is particularly authoritative in this academic discipline (e.g. psychology, sociology, pharmacy)?

How much do you need?

This will depend on the length of the dissertation, the nature of the subject, and the level of study (undergraduate, Masters, PhD). As a very rough rule of thumb – you may choose 8-10 significant pieces (books and/or articles) for an 8,000 word dissertation, up to 20 major pieces of work for 12-15,000 words, and so on. Bear in mind that if your dissertation is based mainly around an interaction with existing scholarship you will need a longer literature review than if it is there as a prelude to new empirical research. Use your judgement or ask your supervisor for guidance.

Where to find suitable material

Your literature review should include a balance between substantial academic books, journal articles and other scholarly publications. All these sources should be as up-to-date as possible, with the exception of ‘classic texts’ such as major works written by leading scholars setting out formative ideas and theories central to your subject. There are several ways to locate suitable material:

Module bibliography: for undergraduate dissertations, look first at the bibliography provided with the module documentation. Choose one or two likely looking books or articles and then scan through the bibliographies provided by these authors. Skim read some of this material looking for clues: can you use these leads to identify key theories and authors or track down other appropriate material?

Library catalogue search engine: enter a few key words to capture a range of items, but avoid over-generalisations; if you type in something as broad as ‘social theory’ you are likely to get several thousand results. Be more specific: for example, ‘Heidegger, existentialism’. Ideally, you should narrow the field to obtain just a few dozen results. Skim through these quickly to identity texts which are most likely to contribute to your study.

Library bookshelves: browse the library shelves in the relevant subject area and examine the books that catch your eye. Check the contents and index pages, or skim through the introductions (or abstracts, in the case of journal articles) to see if they contain relevant material, and replace them if not. Don’t be afraid to ask one of the subject librarians for further help. Your supervisor may also be able to point you in the direction of some of the important literature , but remember this is your literature search, not theirs.

Online: for recent journal articles you will almost certainly need to use one of the online search engines. These can be found on the ‘Indexing Services’ button on the Templeman Library website. Kent students based at Medway still need to use the Templeman pages to access online journals, although you can get to these pages through the Drill Hall Library catalogue. Take a look as well at the Subject Guides on both the Templeman and DHL websites.

Check that you have made the right selection by asking:

• Has my search been wide enough to ensure that I have identified all the relevant material, but narrow enough to exclude irrelevant material?
• Is there a good enough sample of literature for the level (PhD, Masters, undergraduate) of my dissertation or thesis?
• Have I considered as many alternative points of view as possible?
• Will the reader find my literature review relevant and useful?

Assessing the literature

Read the material you have chosen carefully, considering the following:

• The key point discussed by the author: is this clearly defined
• What evidence has the author produced to support this central idea?
• How convincing are the reasons given for the author’s point of view?
• Could the evidence be interpreted in other ways?
• What is the author's research method (e.g. qualitative, quantitative, experimental, etc.)?
• What is the author's theoretical framework (e.g. psychological, developmental, feminist)?
• What is the relationship assumed by the author between theory and practice?
• Has the author critically evaluated the other literature in the field?
• Does the author include literature opposing their point of view?
• Is the research data based on a reliable method and accurate information?
• Can you ‘deconstruct’ the argument – identify the gaps or jumps in the logic?
• What are the strengths and limitations of this study?
• What does this book or article contribute to the field or topic?
• What does this book or article contribute to my own topic or thesis?

As you note down the key content of each book or journal article (together with the reference details of each source) record your responses to these questions. You will then be able to summarise each piece of material from two perspectives:     

Content: a brief description of the content of the book or article. Remember, an author will often make just one key point; so, what is the point they are making, and how does it relate to your own research project or assignment?

Critical analysis: an assessment of the relative strengths and weaknesses of the evidence used, and the arguments presented. Has anything conveniently been left out or skated over? Is there a counter-argument, and has the author dealt with this adequately? Can the evidence presented be interpreted another way? Does the author demonstrate any obvious bias which could affect their reliability? Overall, based on the above analysis of the author’s work, how do you evaluate its contribution to the scholarly understanding and knowledge surrounding the topic?    

Structuring the literature review

In a PhD thesis, the literature review typically comprises one chapter (perhaps 8-10,000 words), for a Masters dissertation it may be around 2-3,000 words, and for an undergraduate dissertation it may be no more than 2,000 words. In each case the word count can vary depending on a range of factors and it is always best, if in doubt, to ask your supervisor.

The overall structure of the section or chapter should be like any other: it should have a beginning, middle and end. You will need to guide the reader through the literature review, outlining the strategy you have adopted for selecting the books or articles, presenting the topic theme for the review, then using most of the word limit to analyse the chosen books or articles thoroughly before pulling everything together briefly in the conclusion.

Some people prefer a less linear approach. Instead of simply working through a list of 8-20 items on your book review list, you might want to try a thematic approach, grouping key ideas, facts, concepts or approaches together and then bouncing the ideas off each other. This is a slightly more creative (and interesting) way of producing the review, but a little more risky as it is harder to establish coherence and logical sequencing.

Whichever approach you adopt, make sure everything flows smoothly – that one idea or book leads neatly to the next. Take your reader effortlessly through a sequence of thought that is clear, accurate, precise and interesting. 

Writing up your literature review

As with essays generally, only attempt to write up the literature review when you have completed all the reading and note-taking, and carefully planned its content and structure. Find an appropriate way of introducing the review, then guide the reader through the material clearly and directly, bearing in mind the following:

• Be selective in the number of points you draw out from each piece of literature; remember that one of your objectives is to demonstrate that you can use your judgement to identify what is central and what is secondary.
• Summarise and synthesise – use your own words to sum up what you think is important or controversial about the book or article.
• Never claim more than the evidence will support. Too many dissertations and theses are let down by sweeping generalisations. Be tentative and careful in the way you interpret the evidence.
• Keep your own voice – you are entitled to your own point of view provided it is based on evidence and clear argument.
• At the same time, aim to project an objective and tentative tone by using the 3rd person, (for example, ‘this tends to suggest’, ‘it could be argued’ and so on).
• Even with a literature review you should avoid using too many, or overlong, quotes. Summarise material in your own words as much as possible. Save the quotes for ‘punch-lines’ to drive a particular point home.
• Revise, revise, revise: refine and edit the draft as much as you can. Check for fluency, structure, evidence, criticality and referencing, and don’t forget the basics of good grammar, punctuation and spelling.

Literature Reviews

• Getting started

What is a literature review?

Why conduct a literature review, stages of a literature review, lit reviews: an overview (video), check out these books.

• Types of reviews
• 1. Define your research question
• 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

Ask a Librarian

Definition: A literature review is a systematic examination and synthesis of existing scholarly research on a specific topic or subject.

Purpose: It serves to provide a comprehensive overview of the current state of knowledge within a particular field.

Analysis: Involves critically evaluating and summarizing key findings, methodologies, and debates found in academic literature.

Identifying Gaps: Aims to pinpoint areas where there is a lack of research or unresolved questions, highlighting opportunities for further investigation.

Contextualization: Enables researchers to understand how their work fits into the broader academic conversation and contributes to the existing body of knowledge.

tl;dr  A literature review critically examines and synthesizes existing scholarly research and publications on a specific topic to provide a comprehensive understanding of the current state of knowledge in the field.

What is a literature review NOT?

❌ An annotated bibliography

❌ Original research

❌ A summary

❌ Something to be conducted at the end of your research

❌ An opinion piece

❌ A chronological compilation of studies

The reason for conducting a literature review is to:

Literature Reviews: An Overview for Graduate Students

While this 9-minute video from NCSU is geared toward graduate students, it is useful for anyone conducting a literature review.

Writing the literature review: A practical guide

Available 3rd floor of Perkins

Writing literature reviews: A guide for students of the social and behavioral sciences

Available online!

So, you have to write a literature review: A guided workbook for engineers

Telling a research story: Writing a literature review

The literature review: Six steps to success

Systematic approaches to a successful literature review

Request from Duke Medical Center Library

Doing a systematic review: A student's guide

• Next: Types of reviews >>
• Last Updated: May 17, 2024 8:42 AM
• URL: https://guides.library.duke.edu/litreviews

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Information

Dissertation research & literature reviews, endnote software.

Endnote is a tool that will allow you to store & organize citation information for the articles, books and other materials you consult during the dissertation writing process. It can also be used with word processor software to build and  insert citations as you write and to create the document's bibliography in the style of your choice.

Purchase and download EndNote from Wayne State C&IT

• Select the  Student Software  or  Employee Owned Software
• Login with your Wayne State Access ID and Password
• Select  Student Software  or  Employee Owned Software  in the menu bar at the top
• Select  EndNote  and follow the directions to purchase and download.
• How to Use Endnote This guide will explain more about Endnote including how to get it, how to use it, and how to get assitance with it.

So, you are embarking on one of the last legs of you doctoral journey!!!

This guide is designed to guide you to information on how to understand the process of researching and writing the Literature Review and the Doctoral Dissertation and to make your research and writing more efficient and effective.

Preparing the Literature Review

• The Literature Review: A Few Tips On Conducting It This is a brief page with several lists of questions to ask yourself during the process of researching and writing your literature review.
• Approaching literature review for academic purposes: The Literature Review Checklist This paper discusses the purposes of LRs in dissertations and theses and describes five steps for developing a review: defining the main topic, searching the literature, analyzing the results, writing the review and reflecting on the writing.
• A Guide to Writing the Dissertation Literature Review This article first discusses the reasons for writing a literature review. It then elaborates the steps involved in doing so. Finally it describes some of the common mistakes made in literature reviews and how to avoid them.

Finding Dissertations and Theses

Were you looking for information on how to  FIND  Dissertations and Theses using the resources at Wayne State?  Then try the Finding WSU and Non-WSU Dissertations & Theses Research Guide

WSU Graduate School

• Degree Requirements for Ph.D. Students This page lists the main university-wide requirements for PhD. completion.
• Forms for Ph.D. Students This page provide links to each of the forms required by the Wayne State University Graduate School of all PhD students as they progress through the degree process.
• Last Updated: Feb 2, 2024 1:22 PM
• URL: https://guides.lib.wayne.edu/litreview
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Wrestling an elephant into a cupboard: how to write a PhD literature review in nine easy steps

Feb 10, 2019

When I was writing my PhD I hated the literature review. I was scared of it. One day, my supervisor took me to one side and told me that I had no choice: ‘It was going to have to be done before you start fieldwork’. I was terrified.

Sound familiar? According to Google, 5,000 people a month search for advice on how to conduct a literature review. And we know from the one-on-one PhD coaching we offer and from the theses we proofread that many students struggle with this part of their thesis. 

If you’re feeling lost, keep reading. In this guide, I’ll walk you through the nine steps involved in conducting and writing a PhD literature review.

You’ll realise what I eventually found out: C onducting a literature review is easy. Okay, perhaps that’s a bit much. Let me rephrase: Conducting a PhD literature review isn’t as hard as you think.

What a PhD literature review isn’t

Let us make one thing very clear. A PhD literature review isn’t just a summary of existing literature. That’s an annotated bibliography and that isn’t what a PhD literature review is about. This is the mistake I see most frequently in the PhDs I proofread.

Not only will your examiners send this back for corrections, but it may mean the whole PhD thesis is problematic because it isn’t grounded in a critical review of the literature.

What a PhD literature review is

A PhD literature review is a critical assessment of the literature in your field and related to your specific research topic. When discussing each relevant piece of literature, the review must highlight where the gaps are and what the strengths and weaknesses are of particular studies, papers, books, etc. Also, different pieces of literature are compared and contrasted with one another so that themes and relationships are highlighted.

The job of a literature review is to show five things (if you’re using our PhD Writing Template , you may recognise these):

1. What has been written on your topic 2. Who the key authors are and what the key works are 3. The main theories and hypotheses 4. The main themes that exist in the literature 5. Gaps and weaknesses that your study will then help fill

Who cares what other people have written and said, or what they haven’t said? Well, you should and your examiners definitely will. For your own study to make sense, it has to be situated in the literature. That means you must relate it to what others are talking about.

If you wanted to build a new mobile phone, you would have to research how other mobile phones are built, find out where they can be improved and then design one that makes those improvements.

The literature review is the same.

But where do I start? Here, we list nine steps. Follow each and you’ll be on your way to literature review greatness.

We’ve made the infographic below to help you on your way. Click the image to download it.

Step One: Pick a Broad Topic

You will be reviewing literature on a particular topic, so knowing what your topic is beforehand means you can narrow down your search. At this stage your topic is broad. You won’t be able to know the specifics until you do the review itself.

For my PhD, which looked at the contributions that local government made to climate change policy, my literature review started with a broad topic of ‘climate change policy’. I didn’t focus in on local government until I had read the literature on climate change policy and realized there was a gap.

So, having a clearly defined purpose is really important. Otherwise you are searching blind. If you refer to your PhD Writing Template, take a look at the box titled ‘Aims & Objectives’ – you’ll need to make sure you have established your aims, scope and research questions.

Step Two: Find the Way In

If you search for your broad topic in Google Scholar, you’ll be presented with millions of results. With my own PhD, a search for ‘climate change policy’ bought up over 3 million results.

  Obviously it’s unfeasible to read through all these.

So where do you start? Easy: choose the biggest names in your field.

There are three ways to find these:

1. Textbooks 2. Review articles 3. Most-cited articles

Read through these seminal texts and you’ll begin to get an idea of the broad topic.

Step Three: Who’s Saying What & When

Your job at this stage is to find out the key debates in the field. 

• Who is making the most significant contribution?
• What are they saying?
• How are they saying it?
• What aren’t they saying?

Step Four: Notes, Notes, Notes.

Whenever you read anything you should be taking notes. Detailed notes. These need to cover the following points: 

• What is the author saying?
• How is it relevant to your research?
• What are the gaps/weaknesses?
• What are the key references that you should read?

The more of these kind of standardised notes you have, the easier it will be when you write your literature review.

Step Five: Narrow Down the Field

As you read the key texts, you will begin to see what the key debates are in your field. There might be a number of ’schools’, for example. When you become aware of them, start to focus your literature review around them.

Step Six: Filter Through Your Growing List of References

Don’t just read everything. You need to find a way to filter through the articles or books that are relevant. For example, scan the abstracts, introduction, keywords, titles and references.

Filter the sources you come across into three separate categories:

• Probably won’t read

Step Seven: Use Snowball Sampling

As you read through these articles, look at their reference list. Collect articles that you think will be relevant and use them in your literature review. This is known as snowball sampling.

Step Eight: Think About the Questions that Haven’t Been Asked

You must be reading critically, which means asking what the weaknesses are and where particular articles or book could be improved.

In order to tease out your own specific research topic, you need to think of the questions that haven’t been asked.

Master your lit review & theory framework.

Learn what goes where (and why), and how it all fit together with this free, interactive guide to the PhD literature review and theory framework.

Step Nine: Writing Up Your Literature Review

  The review will broadly follow the key debates you have spotted in step five above. As you write, focus on putting in more detail about particular sources (i.e. flesh out steps six and seven). The focus when writing is to elaborate upon the key patterns and themes that have emerged.

However, you need to include your own synthesis of the material. I said earlier that you shouldn’t just summarize the literature. Instead you should write critically. You should clearly and precisely present your argument. The argument will focus around the questions that haven’t been asked – step nine above – and will ground the literature review. We’ve written a guide to being critical in your literature review . You should read it if you’re unsure what’s required.

So, write early and write that first draft quickly. The earlier you start writing your literature review the better. You must accept that your first draft is going to be just that: a draft. When you write the first draft, focus on the broad structure first. This means focus on the broad themes you want to discuss in the review.

Something you need to consider is how to structure the chapter. The simple answer is that you can either structure it chronologically or thematically.

The long answer is that chronological literature reviews are restrictive and over-simplify the field. They are useful for very early drafts of the review and can help you to arrange the literature and trace threads and connections within it. However, your supervisors and examiners are looking for thematic reviews (unless they have told you otherwise), where you discuss the literature with reference to the themes that have emerged.

Equally important is knowing when to stop reviewing the literature.

The sooner you go out and do your fieldwork, the better. The literature review is a cruel mistress; you’ll struggle to fully nail down its various components and fully understand how everything you have read is related. But don’t despair; aspects of the literature review will become clearer when you enter the field and start to collect data.

Don’t fall into the trap of spending too long in the library and too little time doing fieldwork.

  It’s natural to be scared of the literature review. To conduct one, you have to read, process and synthesise hundreds of thousands of words. But it’s not impossible. Keep this guide to hand and refer to it when you feel yourself getting lost. Share it with your colleagues so they too can conquer their fear of the literature review.

Now read our guide to being critical in the literature review and, if you haven’t already, download our PhD writing template .

And if you need a little extra support, check out our one-on-one PhD coaching . It’s like having a personal trainer, but for your PhD. 

Hello, Doctor…

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

Now half price. Join hundreds of other students and become a better thesis writer, or your money back. 

Share this:

24 comments.

Good. Clear guidance

I have read the guidelines and noted numerous tricks of writing a thesis. My understanding of writing literature review has improved a lot. Thanks a lot

You’re welcome 🙂

Another Great piece.

It’s understandable and clearer now. I do appreciate you. Thanks so much

Many thanks for the kind words.

You are just brilliant. Outstanding piece for the literature review.

You’re too kind. Thanks!

Great insights! Thanks indeed.

Thank you very much for your clear advice. I am beginning to see where my early literature review drafts were lacking and my feelings of panic are reducing!

is the process the same a research paper?

Broadly speaking, yes. It’ll follow the same overall structure, but you won’t be going into as much detail.

This is very helpful. Thank you so much for sharing

Great advice. Thank you!

You’re welcome!

Thank you for this! I’m a first-year Ph.D. candidate, and I’m super nervous about writing my first literature review. I’ll be sure to use this for some more insight!

Thanks for the kind words. You’re welcome to join us on a PhD Masterclass. We’re currently putting together the Spring 24 calendar and we always run literature review sessions. You can bookmark this page to be the first to hear when our new programme is ready for bookings: https://www.thephdproofreaders.com/phd-workshops/

I cannot tell you how much more concise this makes everything for my ADHD brain. Thank you!

I’m so glad. Thanks for the kind words Kimberly.

I’m staring down the barrel of my literature review and this article made it much clearer what I’m trying to accomplish and actually feel more doable. Thank you!

You’re welcome. I’m glad it helped. Best of luck with it. If you need any support you can get me at max[at]thephdproofreaders.com

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Literature review.

• Getting Started
• Chemistry journals and databases
• Find Dissertations and Theses
• Find Conference Proceedings
• Find Technical Reports
• Managing Citations
• Research Data Management
• Managing Your Academic Identity  
• Helpful Tools

Reviewing the Literature: Why do it?

• Personal: To familiarize yourself with a new area of research, to get an overview of a topic, so you don't want to miss something important, etc.
• Required writing for a journal article, thesis or dissertation, grant application, etc.

Literature reviews vary; there are many ways to write a literature review based on discipline, material type, and other factors.

Background:

• Literature Reviews - UNC Writing Center
• Literature Reviews: An Overview for Graduate Students  - What is a literature review? What purpose does it serve in research? What should you expect when writing one? - NCSU Video

Where to get help (there are lots of websites, blogs , articles,  and books on this topic) :

• The Center for writing and Communicating Ideas (CWCI)
• (these are non-STEM examples: dissertation guidance , journal guidelines )
• How to prepare a scientific doctoral dissertation based on research articles (2012)
• Writing a graduate thesis or dissertation (2016)
• The good paper : a handbook for writing papers in higher education (2015)
• Proposals that work : a guide for planning dissertations and grant proposals (2014)
• Theses and dissertations : a guide to planning, research, and writing (2008)
• Talk to your professors, advisors, mentors, peers, etc. for advice

READ related material and pay attention to how others write their literature reviews:

• Dissertations
• Journal articles
• Grant proposals
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• Last Updated: Sep 13, 2023 2:15 PM
• URL: https://guides.library.harvard.edu/CCB

Harvard University Digital Accessibility Policy

• Doctoral Writing Center
• Doctoral Support

What is a Literature Review?

1. Identify

3. evaluate.

Outline the review ( samples )

What Should I Look for in the Research?

For many individuals, creating a record of the articles you have read and the information you have gathered from them saves a lot of time in the future! Annotated bibliographies are a common way of organizing information. (Note the differences between an annotated bibliography and literature review here ). There are also free reference management organizers like Mendley and Zotero .

When looking at the research, try to identify:

• What patterns can you identify in the research?
• What are the similarities and differences between the literature/findings?
• What are the limitations of the previous research?
• Which studies are the most prevalent? (ensure you include these in your review)
• What gaps have you identified? (this will be where your research comes into focus – you are situating yourself in what is already available)

How do I Organize my Literature Review?

Literature reviews will typically make up the second chapter of your dissertation. They are, on average, twenty pages in length (though this will differ amongst authors). They are organized similarly to a typical paper, where they have an introduction, body, and conclusion.

Literature Review Outline

How do I organize the body of my literature review?

The way you choose to organize your literature review will vary based on what you have found within the literature and how you want to present it to the readers so that it is logical and easy to follow. You will just need to be mindful of how you transition between your points and paragraphs. Typically, think wider to narrower. Here are a few different approaches that are commonly used (note: you do not need to stick to only one approach; you can mix them in your review).

Understanding the Approaches

• Chronological (over time)
• Methodological
• Theoretical

Language Focus:

Should i just summarize the articles i have found.

No, in your literature review, you do not want to simply summarize information. You want to analyze, evaluate, and synthesize. You are making connections for your readers.

What Tense Should I Use?

Tense: present simple.

Explanation: Used when providing definitions, stating general truths or repeated actions.

Examples: In the literature, there are many examples of the negative ramifications associated with ineffective leadership (Henderson, 2019; Bryson et al., 2021).

Tense: Present Perfect

Explanation: Used when discussing something that started in the past and is not finished or when something happened in the past but is relevant now.

Examples: Many of the theories have been rooted in the belief that learning is most effective if personalized (Johnson, 2013).

Tense: Past Simple

Explanation: Used when describing a definite or finished time in the past. Also used when referring to a specific finding in research

Examples: From 2011 to 2017, Jones (2017) researched the effect of inequitable practices on the achievement gap.

Adamson (2019) found… Blark (2020) identified that…

Note with Past Simple

If you state a past year in the sentence of your text, use past tense. If you are only using a year in a citation, you do not have to be limited by the past tense.

Note, the difference between:

• The approach was attempted in 1987.
• The approach is widely regarded as effective for stopping ageism in the hiring process (Gelson, 2001).

What Should I Know About Citing in the Literature Review?

When considering citing in the literature review, you will want to consider how to use citations to show that you are synthesizing and not summarizing, how to cite research that spans multiple sentences, and when to quote. To answer all of these questions and more, please refer to this tutorial .

Additional Resources for Literature Reviews

• Simple Explanations for Confusing Terms •  Self-Evaluation Checklist: Literature Review • Avoiding Plagiarism in the Literature Review