Example of a short literature review in sports medicine is available here.
An example of a student literature review in psychology and lecturer's comments is here.
A literature review in a proposal to investigate how indigenous peoples choose plant medicines.
An example of a literature review on language and gender with annotated comments.
Below is an example of a lit. review from the social sciences
See the following link.
From Vaughan Dickson and Tony Myatt, “The Determinants of Provincial Minimum Wages in Canada,” Journal of Labor Research 23 (2002), 57-68:
In the last few years, prompted largely by the work of Card and Kruger (1995), numerous articles on the employment effects of minimum wage legislation have appeared. This renewed interest in how minimum wages affect employment leads naturally to another question: What factors determine the minimum wage? Despite the ubiquity of minimum wage legislation, this question has received surprisingly little attention. One reason may be that in the U.S. the minimum wage is legislated at the federal rather than at the state level of government. Since this federal wage changes only occasionally, most U.S. studies have been limited to cross-sectional studies that focus on how the characteristics of the states, and the party affiliation of legislators, influence the vote on proposed changes in the federal minimum wage (Silberman and Durbin, 1970; Kau and Rubin, 1978; Bloch, 1980; Seltzer, 1995). However, as pointed out by Baker et al. (1999), Canada offers some unique advantages for minimum wage studies: Since the Canadian minimum wage is under provincial, not federal jurisdiction, there has been substantial variation in the level and timing of changes in the wage across provinces, thus providing the opportunity to explore a relatively rich panel data set. To date, only one... study (Blais et al., 1989) has investigated the determinants of provincial minimum wages using a pooled data set extending across eight years (1975 to 1982) and nine provinces....
As noted, U.S. studies have usually been cross sectional and have examined what variables influenced congressional voting for increases in the federal minimum wage. For example, Bloch (1993) related state wage levels and proportions of unionized employees to votes by senators to amend the 1977 and 1989 Federal Labor Standards Act and thereby increase the minimum wage. For each year he found only the union variable increased the probability of an in-favor vote - and only for Republicans, since Democrats almost universally support minimum wage increases. An earlier contribution is Silberman and Durden (1976) who examined congressmen's votes for the 1973 amendment to increase the minimum wage. Using variables for each congressional district, they found larger political contributions by unions and larger proportions of low-income families increased the probability of an affirmative vote, while larger campaign contributions from small business and larger proportions of teen-age workers reduced the probability. Kau and Rubin (1978) expanded Silberman and Durden's analysis to five separate cross sections covering five legislated increases in the federal minimum wage between 1949 and 1974. They found that higher state wages and a measure of the congressperson's liberalism were always positively and significantly associated with votes for, while percentage of blacks in the state was negatively related, but not significant, in all the cross sections. Unionization in the state's work force and political party of the legislator were never significant; the latter result probably occurred because northern and southern Democrats typically voted on opposite sides.
More recently, Seltzer (1995) explored support in both the House and Senate for the 1938 introduction of the federal minimum wage law. He found variables representing small business and low-wage workers decreased support for the bill, while ideology (liberals for, conservatives against) was also important. To anticipate future problems, Seltzer emphasized that not only are some variables inevitably theoretically ambiguous (a low-wage worker may rationally support or oppose minimum wage increases depending on whether job loss is expected), but also the coefficients on some variables must be interpreted cautiously. For example, should the coefficient for a variable measuring teen workers in the labor force be interpreted as their demand for higher wages, or does the coefficient better reflect the demands of well-organized firms that disproportionally hire younger workers?
In contrast to the U.S., Canada presents a better opportunity to study variations in minimum wages across jurisdictions and time, so it is perhaps surprising that the only study, to our knowledge, that examines Canadian minimum wage determination is Blais et al. (1989). They related the minimum wage, measured as the minimum wage divided by the average manufacturing wage, to the percentages of union workers, women, and 15 to 19-year-olds in the labor force, the current year unemployment rate, the inflation rate, the percentage of employment in small firms (less than 20 employees), and a "convergence" variable that measures average manufacturing wages in a province divided by average wages in Canada. This model was tested with ordinary least squares for a pooled sample covering nine provinces for the years 1975 to 1982, with no fixed effects for provinces or years. All variables had negative coefficients that were significant at the 5 percent level, except for the union variable which was, unexpectedly, negative and insignificant....
Abizadeh, Sohrab and John A. Gray. "Politics and Provincial Government Spending in Canada." Canadian Public Administration 35 (Winter 1992): 519-33.
Akyeampong, Earnest B. "Working for Minimum Wage." Perspectives on Labour Income. Statistics Canada Catalogue 75-001E (Winter 1989): 8-20.
Baker, Michael, Dwayne Benjamin, and Schuchita Stanger. "The Highs and Lows of the Wage Effect: A Time-Series Cross-Section Study of the Canadian Law." Journal of Labor Economics 17 (April 1999): 318-50.
Blais, Andre, Jean-Michel Cousineau, and Kenneth McRoberts. "The Determinants of Minimum Wage Rates." Public Choice 62 (July 1989): 15-24.
Bloch, Farrell E. "Political Support for Minimum Wage Legislation: 1989." Journal of Labor Research 14 (Spring 1993): 187-90.
Card, David and Alan Kruger. Myth and Measurement: The New Economics of the Minimum Wage. Princeton: Princeton University Press, 1995.
Cox, James C. and Ronald L. Oaxaca. "The Political Economy of Minimum Wage Legislation." Economic Inquiry 20 (October 1982): 533-55.
Fortin, Pierre. "Unemployment Insurance Meets the Classical Labor Supply Model." Economics Letters 14 (1984): 275-81.
Kalt, Joseph P. and Mark A. Zupan. "Capture and Ideology in the Economic Theory of Politics." American Economic Review 74 (June 1984): 279-300.
Kau, James B. and Paul H. Rubin. "Voting on Minimum Wages: A Time-Series Analysis." Journal of Political Economy 86 (April 1978): 337-42.
Mueller, Dennis. Public Choice II . Cambridge: Cambridge University Press, 1989.
Peltzman, Sam. "Toward a More General Theory of Regulation." Journal of Law and Economics 19 (August 1976): 211-40.
Salop, Steven C. and David T. Scheffman. "Raising Rivals Costs." American Economic Review 73 (May 1983): 267-71.
Seltzer, Andrew J. "The Political Economy of the Fair Labor Standards Act of 1938." Journal of Political Economy 103 (December 1996): 1302-42.
Silberman Jonathan I. and Garey C. Durden. "Determining Legislative Preferences on the Minimum Wage: An Economic Approach." Journal of Political Economy 84 (April 1976): 317-29.
Simon, R.J. Public Opinion in America, 1936-1970. Chicago: Rand McNally, 1974.
Sobel, Russell S. "Theory and Evidence on the Political Economy of Minimum Wage." Journal of Political Economy 107 (August 1999): 761-85.
Stigler, George. "The Theory of Economic Regulation." Bell Journal of Economics and Management Science 2 (Spring 1971): 3-21.
I. Thinking About Your Literature Review
The structure of a literature review should include the following:
- 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?
- Value -- 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
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:
If your assignment is not very specific about what form your literature review should take, seek clarification from your professor by asking these questions:
1. Roughly how many sources should I 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?
5. Should I provide subheadings and other background information, such as definitions and/or a history?
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 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 your job easier if you first limit scope of the research problem. A good strategy is to begin by searching the HOMER catalog for 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.
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”]
Thematic reviews of literature are organized around a topic or issue, rather than the progression of time. However, progression of time may still be an important factor in 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 will still be organized chronologically reflecting technological developments in media. The only difference here between a "chronological" and a "thematic" approach is what is emphasized the most: the role of the Internet in presidential politics. Note however 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 made.
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 but include only what is necessary for the reader to locate your study within the larger scholarship framework.
Here are examples of other sections you may need to include depending on the type of review you write:
- Current Situation: information necessary to understand the topic or focus of the literature review.
- History: the chronological progression of the field, the 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: the 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 articles and journals.
- Standards: 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.
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.
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 okay 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, not common knowledge, or taken directly from the study. Do not use extensive quotes as a substitute for your own summary and interpretation of 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.
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 relevent 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.