systematical literature review

systematical literature review
Systematic Literature Reviews: A Guide
Systematic literature review is a research method used to identify, appraise, and synthesize available evidence in a systematic and rigorous manner. This method is particularly useful when trying to answer a specific research question or to inform policy and practice.
1. Defining the research question
The first step in conducting a systematic literature review is to clearly define the research question. This step involves identifying the research topic and formulating research questions that are specific, clear, and relevant to the study aim. The research questions should guide the search process and help identify relevant studies.
2. Conducting a comprehensive search
The second step is to identify relevant studies by conducting a comprehensive search. This search involves searching multiple electronic databases, grey literature, conference proceedings, and other sources of information. Keywords, indexing terms, and inclusion and exclusion
criteria are used to guide the search process.
3. Screening and selecting studies
The third step is to screen and select studies that meet the inclusion and exclusion criteria. This involves reviewing the titles, abstracts, and full-texts of potential studies to determine their relevance to the research questions. The selected studies are then included in the review.
4. Data extraction and appraisal
The fourth step is to extract data from the selected studies and appraise their quality. This involves collecting data on the study population, design, intervention, outcome measures, and results. The quality of the studies is assessed using predetermined criteria such as the Cochrane Risk of Bias tool.
5. Synthesizing the evidence
The fifth and final step is to synthesize the evidence by analyzing and summarizing the findings of the selected studies. This involves combining the results of individual studies to determine the overall effect size and strength of evidence. Meta-analysis, sub-group analysis, and narrative synthesis are some methods that can be used to synthesize the evidence.
Systematic literature review is a rigorous and transparent method of synthesizing evidence that is useful in informing policy and practice. Its strength lies in its
ability to identify, appraise, and synthesize a large body of evidence in a systematic and comprehensive manner.。