Before reviewing any publications, including books and scholastic articles, evaluate the sources for their credibility. How have they arrived at their results? Are there any conflicting theories or findings? Reading at this critical level will help you decide whether a publication should or should not be included in your literature review.
Author credentials
Take some time to examine how the contributors are affiliated. Are the researchers connected to a university, a research lab or a pharmaceutical company? Are the authors considered leading experts in their field? Are they promoting special interests?
Relevance and Scope
Make sure the publications you include in your literature review are relevant and within the scope of your topic, in terms of theoretical argument, research methodology, timeframe and currency.
Reliability
How well is the study designed? Do you see any room for improvement? Do similar studies come to the same conclusion? Have the authors explored the topic from different points of view, or do they rely on a more one-sided argument?
A literature review is NOT an annotated bibliography. It should be a discursive piece of writing that combines, analyses and evaluates what is currently known and published about a particular topic.
Introduction
The introduction specifies your literature review topic and its relevance to the discipline in question. As with any other research paper, your introduction should preview the synthesis and the conclusion that you will come to, based on your analysis and evaluation.
Body
There are many ways of organizing the body of your literature review, including theme, methodology and chronology. Since a literature review is a critical evaluation of existing knowledge, it is useful to compare works that share the same themes or use similar methodologies. This allows for a more discursive reading of the current knowledge, rather than a simple list of available literature.
The following are three types of literature reviews, all on the topic of farming and food security; however, each uses a different organizing concept.
Organizing Concept |
Example |
Theoretical Frameworks |
Farming approaches for greater biodiversity, livelihoods, and food security |
Anecdotal/Personal |
Evolution of regional to global paddy rice mapping methods: A review |
Qualitative/Quantitative |
Yield gaps in rice-based farming systems: Insights from local studies and prospects for future analysis |
Conclusion
This is the place to summarize the results of your analysis of the current literature, highlighting what key information is known and what areas need further study. You can also provide suggestions for possible future studies, or demonstrate why your proposed research merits further study.
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