![]() ![]() Another key difference is the goal of each type of review.Meta-analysis is a statistical method used to synthesize the results of multiple studies on a specific research question or topic. Literature reviews provide a summary of the existing literature on a specific topic without a specific methodology, whereas systematic reviews follow a standardized methodology to identify, evaluate, and synthesize all available evidence on a specific research question or topic.The main difference between literature review, systematic review, and meta-analysis is the methodology used to identify, evaluate, and synthesize the available evidence.Meta-analysis is particularly useful when there are multiple studies on a specific research question or topic with varying effect sizes, or when the sample sizes of individual studies are too small to provide a precise estimate of the effect size. The primary aim of a meta-analysis is to provide a more precise estimate of the effect size of an intervention or exposure than any individual study can provide.The methodology of a meta-analysis involves identifying relevant studies through a comprehensive search strategy, screening and selecting studies based on pre-determined inclusion and exclusion criteria, extracting data from the included studies, and analysing the data using statistical methods to calculate an overall effect size.It is a quantitative analysis that combines data from multiple studies to provide an overall estimate of the effect size of an intervention or exposure. Systematic reviews are particularly useful when there is a large amount of existing literature on a topic, or when there is conflicting evidence in the literature.Ī meta-analysis is a statistical method used to synthesize the results of multiple studies on a specific research question or topic. The primary aim of a systematic review is to provide a summary of the available evidence on a specific topic, with the goal of answering a specific research question.The methodology of a systematic review involves defining a specific research question, identifying relevant studies through a comprehensive search strategy, screening and selecting studies based on pre-determined inclusion and exclusion criteria, assessing the quality of the included studies, and synthesizing the findings of the included studies.A systematic review is often considered the gold standard in literature review because of its transparent and reproducible methodology. It follows a rigorous and standardized methodology to identify, evaluate, and synthesize all available evidence on the topic of interest. Conducting a thorough literature review is an essential step in the research process as it provides a foundation for the study and demonstrates the researcher's understanding of the field.Ī systematic review is a comprehensive review of the literature on a specific research question or topic. ![]() It serves to identify gaps in current knowledge and inform research questions and hypotheses. ![]() A Literature Review in Research involves gathering and evaluating existing literature and research on a particular topic.Literature reviews can be conducted using various methods, such as a narrative review, which provides a summary of the literature without any specific analysis or synthesis of the findings, or a scoping review, which maps out the literature on a specific topic but does not necessarily aim to answer a specific research question.The purpose of a literature review is to identify gaps in the existing research and to provide a foundation for further research. It is an overview of the research that has already been conducted on the topic, including relevant theories, concepts, and findings. A literature review is a critical analysis and summary of the existing literature on a specific topic.In this article, we will explore the differences between literature review, systematic review, and meta-analysis. However, there are different types of Literature Reviews, each with their own purpose and methodology. ![]() When conducting research, one of the most important steps is reviewing the existing literature to gain an understanding of what is already known about a particular topic. ![]()
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