Meta-analysis in the social sciences:
- Cite this article as:
- Wampold, B.E., Ahn, H. & Kim, D. Asia Pacific Educ. Rev. (2000) 1: 67. doi:10.1007/BF03026147
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Meta-analysis is a class of statistical methods for combining the results from a series of studies addressing the same research question. These methods can powerfully test hypotheses that cannot be answered clearly with one or a few studies and eliminates the ambiguity that results from narrative reviews of a research literature or from counting the number of studies that support a particular conclusion. The usefulness of meta-analysis is demonstrated by reviewing instances in psychotherapy, education, and medicine that show how meta-analysis was used successfully to end acrimonious debate and reach a firm and lasting conclusion.