A literature review assignment is a critical analysis of previous research about a specific topic. This is different from a literature review for a research project, where you use past research findings to identify and justify your new research topic. An effective literature review assignment involves Jul 18, · Literature reviews are in great demand in most scientific fields. Their need stems from the ever-increasing output of scientific blogger.com example, compared to , in three, eight, and forty times more papers were indexed in Web of Science on malaria, obesity, and biodiversity, blogger.com such mountains of papers, scientists cannot be expected to examine in detail Our resources will help you with everything from reading to note-taking, and time management to exams. Learning at university. Whether you’re writing an essay, report or literature review, our sample assignments will show you what markers are looking for. Graduate research and writing
Ten Simple Rules for Writing a Literature Review
Citation: Pautasso M Ten Simple Rules for Writing a Literature Review. PLoS Comput Biol 9 7 : e Editor: Philip E. Bourne, University of California San Diego, United States of America. Copyright: © Marco Pautasso. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Funding: This work was funded by the French Foundation for Research on Biodiversity FRB through its Centre for Synthesis and Analysis of Biodiversity data CESABas part of the NETSEED research project. The funders had no role in the preparation of the manuscript. Competing interests: The author has declared that no competing interests exist. Literature reviews are in great demand in most scientific fields. Their need stems from the ever-increasing output of scientific publications [1].
For example, compared toin three, eight, help writing literature review, and forty times more papers were indexed in Web of Science on malaria, obesity, and biodiversity, respectively [2].
Given such mountains of papers, scientists cannot be expected to examine in detail every single new paper relevant to their interests [3]. Thus, it is both advantageous and necessary to rely on regular summaries of the recent literature.
Although recognition for scientists mainly comes from primary research, timely literature reviews can lead to new synthetic insights and are often widely read [4]. For such summaries to be useful, however, they need to be compiled in a professional way [5].
When starting from scratch, reviewing the literature can require a titanic amount of work. That is why researchers who have spent their career working on a certain research issue are in a perfect position to review that literature. Some graduate schools are now offering courses in reviewing the literature, given that most research students start their project by producing an overview of what has already been done on their research issue [6].
However, it is likely that most scientists have not thought in detail about how to approach and carry out a literature review. Reviewing the literature requires the ability to juggle multiple tasks, from finding and evaluating relevant material to synthesising information from various sources, from critical thinking to paraphrasing, help writing literature review, evaluating, and citation skills [7].
In this contribution, I share ten simple rules I learned working on about 25 literature reviews as a PhD and postdoctoral student. Ideas and insights also come from discussions with coauthors and colleagues, help writing literature review, as well as feedback from reviewers and editors.
How to choose which topic to review? There are so many issues in contemporary science that you could spend a lifetime of attending conferences and reading the literature just pondering what to review. Help writing literature review the one hand, if you take several years to choose, several other people may have had the same idea in the meantime. On the other hand, only a well-considered topic is likely to lead to a brilliant literature review [8].
The topic must at least be:. Ideas for potential reviews may help writing literature review from papers providing lists of key research questions to be answered [9]but also from serendipitous moments during desultory reading and discussions. In addition to choosing your topic, you should also select a target audience. In many cases, the topic e. After having chosen your topic and audience, start by checking the literature and downloading relevant papers. Five pieces of advice here:. The chances are high that someone will already have published a literature review Figure 1if not exactly on the issue you are planning to tackle, help writing literature review, at least on a related topic.
If there are already a few or several reviews of the literature on your issue, my advice is not to give up, but to carry on with your own literature review. The bottom-right situation many literature reviews but few research papers is not just a theoretical situation; it applies, for example, help writing literature review, to the study of the impacts of climate change on plant diseases, help writing literature review, where there appear to be more literature reviews than research studies [33].
If you read the papers first, and only afterwards start writing the review, you will need a very good memory to remember who wrote what, and what your impressions and associations were while reading each single paper.
My advice is, help writing literature review, while reading, to start writing down interesting pieces of information, insights about how to organize the review, and thoughts on what to write, help writing literature review. This way, by the time you have read the literature you selected, you will already have a rough draft of the review. Of course, this draft will still need much rewriting, restructuring, and rethinking to obtain a text with a coherent argument [11]help writing literature review you will have avoided the danger posed by staring at a blank document.
Be careful when taking notes to use quotation marks if you are provisionally copying verbatim from the literature. It is advisable then to reformulate such quotes with your own words in the final draft.
It is important to be careful in noting the references already at this stage, so as to avoid misattributions. Using referencing software from the very beginning of your endeavour will save you time.
After having taken notes while reading the literature, you will have a rough idea of the amount of material available for the review. This is probably a good time to decide whether to go for a mini- or help writing literature review full review. Some journals are now favouring the publication of rather short reviews focusing on the last few years, with a limit on the number of words and citations.
A mini-review is not necessarily a minor review: it may well attract more attention from busy readers, although it will inevitably simplify some issues and leave out some relevant material due to space limitations.
There is probably a continuum between mini- and full reviews. The same point applies to the dichotomy of descriptive vs.
integrative reviews, help writing literature review. While descriptive reviews focus on the methodology, help writing literature review, findings, and interpretation of each reviewed study, integrative reviews attempt to find common ideas and concepts from the reviewed material [12]. A similar distinction exists between narrative and systematic reviews: while narrative reviews are qualitative, systematic reviews attempt to test a hypothesis based on the published evidence, which is gathered using a predefined protocol to reduce bias [13][14].
When systematic reviews analyse quantitative results in a quantitative way, they become meta-analyses. The choice between different review types will have to be made on a case-by-case basis, depending not just on the nature of the material found and the preferences of the target journal sbut also on the time available to write the review and the number of coauthors [15].
Whether your plan is help writing literature review write a mini- or a full review, it is good advice to keep it focused 16 Including material just for the sake of it can easily lead to reviews that are trying to do too many things at once. The need to keep a review help writing literature review can be problematic for interdisciplinary reviews, help writing literature review, where the aim is to bridge the gap between fields [18].
If you are writing a review on, for example, how epidemiological approaches are used in modelling the spread of ideas, you may be inclined to include material from both parent fields, epidemiology and the study of cultural diffusion. This may be necessary to some extent, help writing literature review, but in this case a focused review would only deal in detail with those studies at the interface between epidemiology and the spread of ideas.
While focus is an important feature of a successful review, this requirement has to be balanced with the need to make the review relevant to a broad audience. This square may be circled by discussing the wider implications of the reviewed topic for other disciplines.
Reviewing the literature is not stamp collecting. A good review does not just summarize the literature, but discusses it critically, identifies methodological problems, and points out research gaps [19]. After having read a review of the literature, a reader should have a rough idea of:. It is challenging to achieve a successful review on all these fronts. A solution can be to involve a set help writing literature review complementary coauthors: some people are excellent at mapping what has been achieved, some others are very good at identifying dark clouds on the horizon, and some have instead a knack at predicting where solutions are going to come from.
If your journal club has exactly this sort of team, then you should definitely write a review of the literature! In addition to critical thinking, a literature review needs consistency, for example in the choice of passive vs. active voice and present vs.
past tense. Like a well-baked cake, help writing literature review, a good review has a number of telling features: it is worth the reader's time, timely, systematic, well written, focused, and critical. It also needs a good structure. With reviews, the usual subdivision of research papers into introduction, methods, results, and help writing literature review does not work or is rarely used.
However, a general introduction of the context and, toward the end, a recapitulation of the main points covered and take-home messages make sense also in the case of reviews. For systematic reviews, there is a trend towards including information about how the literature was searched database, keywords, time limits [20].
How can you organize the flow of the main body of the review so that the reader will be drawn into and guided through it? It is generally helpful to draw a conceptual scheme of the review, e. Such diagrams can help recognize a logical way to order and link the various sections of a review [21]. This is the case not just at the writing stage, but also for readers if the diagram is included in the review as a figure.
A careful selection of diagrams and figures relevant to the reviewed topic can be very helpful to structure the text too [22]. Reviews of the literature are normally peer-reviewed in the same way as research papers, and rightly so [23]. As a rule, incorporating feedback from reviewers greatly helps improve a review draft.
Having read the review with a fresh mind, reviewers may spot inaccuracies, inconsistencies, and ambiguities that had not been noticed by the writers due to rereading the typescript too many times.
It is however advisable to reread the draft one more time before submission, as a last-minute correction of typos, leaps, and muddled sentences may enable the reviewers to focus on providing advice on the content rather than the form. Feedback is vital to writing a good review, and should be sought from a variety of colleagues, so as to obtain a diversity of views on the draft. This may lead in some cases to conflicting views on the merits of the paper, and on how to improve it, but such a situation is better than the absence of feedback.
A diversity of feedback perspectives on help writing literature review literature review can help identify where the consensus view stands in the landscape of the current scientific understanding of an issue [24].
In many cases, reviewers of the literature will have published studies relevant to the review they are writing. This could create a conflict of interest: how can reviewers report objectively on their own work [25]? Some scientists may be overly enthusiastic about what they have published, and thus risk giving too much importance to their own findings in the review.
However, bias could also occur in the other direction: some scientists may be unduly dismissive of their own achievements, so that they will tend to downplay their contribution if any to a field when reviewing help writing literature review. In general, a review of the literature should neither be a public relations brochure nor an exercise in competitive self-denial. If a reviewer is up to the job of producing a well-organized and methodical review, which flows well and provides a service to the readership, then it should be possible to be objective in reviewing one's own relevant findings.
In reviews written by multiple authors, this may be achieved by assigning the review of the results of a coauthor to different coauthors. Given the progressive acceleration in the publication of scientific papers, help writing literature review, today's reviews of the literature need awareness not just of the overall direction and achievements of a field of inquiry, but also of the latest studies, so as not to become out-of-date before they have been published.
This implies that literature reviewers would do well to keep an eye on electronic lists of papers in press, given that it can take months before these appear in scientific databases. Some reviews declare that they have scanned the literature up to a certain point in time, but given that peer review can be a rather lengthy process, a full search for newly appeared literature at the revision stage may be worthwhile.
Assessing the contribution of papers that have just appeared is particularly challenging, because there is little perspective with which to gauge their significance and impact on further research and society.
How To Write A Literature Review In 3 Simple Steps (FREE Template With Examples)
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A literature review will help you identify such an area. Your literature review should discuss the theories and concepts that underpin your research. This is Books offering advice on writing a literature review are available in the Study Skills collections in the Learning Centres and as part of the electronic book collection Essay Writing Help Benefits. We have been working for a very long time, and we know exactly how to do most of the tasks correctly. That is why we have a universal recipe for making our essay help service useful for every customer. Thanks to us, you will be able to plan your schedule several weeks in advance Our resources will help you with everything from reading to note-taking, and time management to exams. Learning at university. Whether you’re writing an essay, report or literature review, our sample assignments will show you what markers are looking for. Graduate research and writing
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