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Research Methods in the Social Sciences: An A-Z of key concepts

Research Methods in the Social Sciences: An A-Z of key concepts (1st edn)

Jean-Frédéric Morin, Christian Olsson, and Ece Özlem Atikcan
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date: 02 December 2021

p. 163M. Meta-Analysis

A Solution to Deal with Scientific Information Overload when Conducting Research Syntheseslocked

p. 163M. Meta-Analysis

A Solution to Deal with Scientific Information Overload when Conducting Research Syntheseslocked

  • Noémie Laurens

Abstract

This chapter illustrates meta-analysis, which is a specific type of literature review, and more precisely a type of research synthesis, alongside traditional narrative reviews. Unlike in primary research, the unit of analysis of a meta-analysis is the results of individual studies. And unlike traditional reviews, meta-analysis only applies to: empirical research studies with quantitative findings hat are conceptually comparable and configured in similar statistical forms. What further distinguishes meta-analysis from other research syntheses is the method of synthesizing the results of studies — i.e. the use of statistics and, in particular, of effect sizes. An effect size represents the degree to which the phenomenon under study exists.

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