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Updated and expanded to cover recent advances in the field. Further Reading expanded.

Updated on 01 Oct 2013. The previous version of this content can be found here.
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date: 29 April 2017

Abstract and Keywords

Meta-analysis is widely used in the social, behavioral, and medical sciences to combine results of multiple studies and produce relevant information for clinical practice and social policy. It is most often used to synthesize quantitative data on treatment effects, but it has many potential applications. Meta-analysis includes a set of techniques for quantitative data synthesis that can (and should) be performed in the context of systematic efforts to minimize bias at each step in the research review process (see Systematic Reviews). Without careful efforts to eliminate bias, meta-analysis can lead to wrong conclusions.

Keywords: evidence, empirical, research, literature reviews, quantitative data, systematic reviews

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