How many sources do you need in a literature review? (2024)

Students often ask me how many sources they need in their literature review. The short answer is, “It depends.” It depends on your topic, the nature of your research project, your level of scholarship, and a number of other factors.

An article from Canberra University(http://www.canberra.edu.au/studyskills/writing/literature) suggests:

  • Undergraduate review: 5-20 titles depending on level
  • Honours dissertation: 20+ titles
  • Master’s thesis: 40+ titles
  • Doctoral thesis: 50+ titles

Another strategy I learned somewhere along the way that I now share with my students is this:

If your literature review is one section of a larger research paper, thesis or dissertation

Minimum number of sources = number of pages in the body of your entire paper (exclusive of title page, abstract, appendices and references)

Example: A paper that has 10 pages of content (the body of the paper) needs at least 10 sources in its literature review.

A thesis of 100 pages (in the body) includes at least 100 sources.

If your literature review is a stand-alone document

Minimum number of sources = 3 times the number of pages in the body of your paper (exclusive of title page, abstract, appendices and references)

Example: A stand-alone literature review that has 10 pages of content (the body of the paper) should examine at least 30 sources.

These are not hard and fast rules by any means. Also, it is worth mentioning that as students and scholars who care about the quality of our work, we want to aim to raise the bar, not simply meet a minimum suggested standard. What these guidelines are suggesting is that you don’t aim for any less. If you do, your search for relevant literature in your field may be incomplete and you need to keep digging. Of course, your sources have to be relevant to your topic, too.

Not every scholar or academic supervisor would agree with the guidelines I offer here, criticizing them as being too reductionist or simplistic. My point isn’t to offer a black and white rule or to open a theoretical debate for which there can be no clear solution, but rather to offer a straight forward and practical answer to a question that academics often respond to in an ambiguous way, leaving students frustrated, exasperated, and anxious about how to go conduct their literature review.

When in doubt, talk with your own instructor or supervisor, asking them what their expectations are. (Don’t be surprised though, if you get an answer that is vague, like, “It depends…”)

Remember: Aim for quality over quality… and to do a quality literature review, you need to have a substantive quantity of sources.

Here are some of my favourite resources to help you write your literature review:

University of Toronto –http://www.writing.utoronto.ca/advice/specific-types-of-writing/literature-review

U Conn –http://classguides.lib.uconn.edu/content.php?pid=239974&sid=1980274

University of Leicester – http://www2.le.ac.uk/offices/ld/resources/writing/writing-resources/literature-review

Queensland Univeristy of Technology –http://www.citewrite.qut.edu.au/write/litreview.jsp

Birmingham City University –http://library.bcu.ac.uk/learner/writingguides/1.04.htm

Related posts:Why APA formatting mattershttp://wp.me/pNAh3-1Hc

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Sarah Elaine Eaton is a faculty member in the Werklund School of Education, University of Calgary, Canada.

This entry was posted on Wednesday, February 19th, 2014 at 12:54 pm and is filed under education, research.You can follow any responses to this entry through the RSS 2.0 feed.Both comments and pings are currently closed.

How many sources do you need in a literature review? (2024)

FAQs

How many sources do you need in a literature review? ›

If your topic is ultra-specific and you can only find four articles, that will not benefit you in writing a full literature review (which typically has 10- 15 articles as sources). If that is something you encounter, you may want to consider broadening your question or looking for a different subject matter.

How many sources should I include in a literature review? ›

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.

How many references do I need for a 2000 word literature review? ›

Balancing references is key; generally, 10-20 quality references suffice for a 2000-word essay. 2. Can I use online sources in academic essays? Yes, but ensure they are reputable and reliable sources.

How many articles are sufficient for a literature review? ›

Although published review articles may cite more than 100 articles, literature reviews for courses are often shorter because they present only highlights of a research area and are not exhaustive. A short literature review may survey 7-12 research articles and be about 10-15 pages long.

How many sources for a 3000 word literature review? ›

A 3000 word essay should have exactly as many references cited as required - not a single reference more and not a single reference less. 3000 word essay: 20 sources (or more) listed in the reference list. 5000 word essay: 33 sources (or more) listed in the reference list.

What are the 3 major sources of literature review? ›

Primary, Secondary, and Tertiary Sources.

Can you have too many references in a literature review? ›

My "rule of thumb" has always been to use a maximum of three references to support a particular statement. The role of a literature review is to provide a targeted review of the literature. In my view, there are several reasons why it is wise not to use too many references: It really disturbs the flow of the paper.

What is the minimum number of references for a literature review? ›

Generally speaking, a reasonable number of references in a literature review would be: Undergraduate review: 5-20 titles depending on level. Honours dissertation: 20+ titles. Masters thesis: 40+ titles.

How many sources are in a 1000 word literature review? ›

When you're considering how many sources to include in your review, you can aim to include one or two sources per thousand words in your overall thesis or dissertation word count. For a 10,000-word dissertation, you would try to include between 10 and 20 sources.

Does a literature review need references? ›

As with other forms of academic writing, your literature review needs to demonstrate good academic practice by following the Code of Student Conduct and acknowledging the work of others through citing and referencing your sources.

What is the minimum number of articles for a literature review? ›

If your literature review is a stand-alone document

Example: A stand-alone literature review that has 10 pages of content (the body of the paper) should examine at least 30 sources.

What are the requirements for a literature review? ›

The review should enumerate, describe, summarize, objectively evaluate and clarify this previous research. Connections should be made linking those sources to one another. A literature review is a comprehensive summary of previous research on a topic. Do not describe each source individually.

How long should a literature review be per source? ›

The length of a literature review varies depending on its purpose and audience. In a thesis or dissertation, the review is usually a full chapter (at least 20 pages), but for an assignment it may only be a few pages.

How many sources do I need for my literature review? ›

You want to make sure that you are devising a research question in a field where there is actually research to be found. If your topic is ultra-specific and you can only find four articles, that will not benefit you in writing a full literature review (which typically has 10- 15 articles as sources).

How many sources should you have for 2000 words? ›

As a general rule of thumb, you should aim for one source for your paper's reference list per 150 words. Here's a breakdown by essay size: 1500-word essay: Aim for at least 10 sources in the reference list. 2000-word essay: Aim for at least 13 sources in the reference list.

How many sources should a master's thesis have? ›

If you go below the bottom value, your paper can seem poorly researched, and if you go over the high end, it can seem wholly unoriginal. Simple multiplication would suggest that a 100 page thesis should therefore have from 100 to 200 sources, and this isn't a terrible range to work with.

How many sources should a 20 page research paper have? ›

Optimal Number of References per Page

The optimal number of references per page often falls between 3 to 6 citations, balancing the need for a thorough literature review with readability and coherence.

How many sources should a 10,000 word dissertation have? ›

The Degree level of your Dissertation

Bachelors: A Bachelors level dissertation contains words from 10,000 to 12,000. For this type of word count, 45 to 50 references will most likely be needed at least and the maximum, 100 reference will also be a respectable benchmark to add references.

How long should a literature review be for each source? ›

The length of a literature review varies depending on its purpose and audience. In a thesis or dissertation, the review is usually a full chapter (at least 20 pages), but for an assignment it may only be a few pages.

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