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Targeted literature searches are a fundamental part of writing clinical manuscripts that will meet the standards of high-quality journals and contribute meaningfully to evidence-based practice. When physicians write clinical manuscripts, utilizing a targeted literature search can identify high-quality, relevant, and current evidence. While a general literature review is useful, a targeted literature search is specific to the clinical question and should be completed through frameworks established, such as PICO (Population, Intervention, Comparator, Outcome) and PRISMA [1].
An important aspect of academic research is the literature review. Reading and systematically analyzing the existing knowledge related to your research question opens future research directions. Contextualizing your research within and as it relates to prior knowledge is the underpinning of all academic research activities across all academic disciplines. Thus, executing this effectively should be a top priority for all academics. However, this process has become more difficult.
A literature review could be defined broadly as a systematic approach to gathering and synthesizing prior research. It can bring together findings and perspectives from multiple empirical studies to answer research questions with a strength that no single study could match.[1],[2]
Literature reviews have several purposes. They provide a broad summary and analysis of a field of research, reviewing the consensus and disagreement, and identifying gaps in knowledge where research is needed. Reviews enhance and augment theoretical approaches, inform methodological decisions, and help to mitigate the possibility of engaging in biased reasoning or interpreting selective evidence and experiences.
It is important to determine what an appropriate literature review type and methodology are to align the literature review process with the overall research interest. [4]
In business research, literature reviews are typically categorized as systematic, semi-systematic, or integrative.
| Approach | Systematic | Semi-systematic | Integrative |
|---|---|---|---|
| Typical purpose | Synthesize and compare evidence | Overview of the research area and track development over time | Critique and synthesize |
| Research questions | Specific | Broad | Narrow or broad |
| Search strategy | Systematic | May or may not be systematic | Usually not systematic |
| Sample characteristics | Quantitative articles | Research articles | Research articles, books, and other published texts |
| Analysis and evaluation | Quantitative | Qualitative/quantitative | Qualitative |
| Examples of contribution | Evidence of effect Inform policy and practice | State of knowledge Themes in literature Historical overview Research agenda Theoretical model | Taxonomy or classification Theoretical model or framework |
| Authors | Discipline | Type of literature review | Contribution |
|---|---|---|---|
| Baumeister and Leary (1997) [5] | Psychology | Narrative review |
|
| Tranfield et al. (2003) [6] | Management | Systematic review |
|
| Torraco (2005) [7] | Human Resources | Integrative review |
|
| Liberati et al. (2009) [8] | Medicine | Systematic review and meta-analysis | Provides guidelines for conducting and reporting systematic reviews and meta-analysis |
| Wong et al. (2013) [9] | Medicine | Semi-systematic review | Provides guidelines for conducting a meta-narrative review |
| Davis et al. (2014) [10] | Social Sciences | Systematic review and meta-analysis |
|
| Palmatier et al. (2018) [11] | Marketing | Review papers and systematic reviews | Provides guidelines for publishing review papers in the Journal of the Academy of Marketing Science |
Identify the review’s purpose, audience, and research questions. Choose the type of review, search terms, databases, and inclusion and exclusion criteria. Preliminary scanning prevents duplication and informs methodology.
Searching for and selecting appropriate studies, piloting methods, and using at least two reviewers will strengthen reliability. You should document the inclusion exclusion decisions for transparency as well.
Gather and collectively analyze information that could be descriptive (authors, methods) or be conceptually themed. There are varied ways to synthesize: systematic reviews typically use meta-analysis, semi-systematic reviews use qualitative syntheses for information on an integrative review, and critically
reinterpreting findings to create insights. There is a quality apparatus to guarantee reliability.
Effectively communicate motivation, methods, and findings. Reporting standards, such as PRISMA for systematic reviews and RAMESES for narrative reviews, support clarity. Strong writing synthesizes findings to make meaning with contributions such as conceptual frameworks, evidence of effects, or a research agenda.
Quality reviews reflect depth, rigor, and usefulness. Depth entails the inclusion of relevant studies in the review summaries. Rigor provides transparency about the methods of the review. Usefulness means the reviews contribute to theory and practice. Whereas assessments of quality for reviews point to the clarity of the research questions, appropriateness of methods, transparency, and significance of the findings, if any of these are absent, the conclusions of the review may be faulty or less complete.[14]
Publishing is not just a matter of summarizing studies. Usual blunders consist of providing inadequate methodological information, inadequate sampling (narrow or broad), poor analysis, and a lack of implications. Successful reviews identify meaningful research problems, include feasible methods, synthesize findings in a meaningful way, and include meaningful implications for the work field. This could include methods like meta-analysis, machine-learning-based text analysis, or building a conceptual model, which somewhat makes it easier for readers to see the value of the review if they are used in a sophisticated way. Many reviews exert a range of theoretical contributions, practical implications, or research agendas that can be well thought-out contributions to the field.[15]
Literature reviews provide the building blocks for business research, assisting in theory, evidence-based practice, and knowledge advancement. Systematic, semi-systematic, and integrative reviews all have pros and cons, as determining a review’s type will depend upon the purpose of the research. In any case, conducting a good literature review entails careful planning, transparent methodology, critical analysis, and clear reporting.
A good literature review will do more than summarize the studies that are the subject of the review: by identifying gaps in existing studies, it also synthesizes knowledge across disciplines or creates new theoretical knowledge or practical implications.
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