Meta-analysis in psychological research.
Meta-analysis is a research methodology that aims to quantitatively integrate the results of a set of empirical studies about a given topic. With this purpose, effect-size indices are obtained from the individual studies and the characteristics of the studies are coded in order to examine their rela...
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| Autores principales: | , |
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| Formato: | article |
| Lenguaje: | EN ES |
| Publicado: |
Universidad de San Buenaventura
2010
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/d622fab392e146238a02ab7eaa9affc4 |
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| Sumario: | Meta-analysis is a research methodology that aims to quantitatively integrate the results of a set of empirical studies about a given topic. With this purpose, effect-size indices are obtained from the individual studies and the characteristics of the studies are coded in order to examine their relationships with the effect sizes. Statistical analysis in meta-analysis requires the weighting of each effect estimate as a function of its precision, by assuming a fixed- or a random-effects model. This paper outlines the steps required for carrying out the statistical analyses in a meta-analysis, the different statistical models that can be assumed, and the consequences of the assumptions in interpreting their results. The statistical analyses are illustrated with a real example. |
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