Biaix de publicació en meta-anàlisirevisió dels mètodes de detecció i avaluació
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1
Universitat de València
info
ISSN: 1135-1268
Año de publicación: 2017
Volumen: 18
Número: 1
Páginas: 13-30
Tipo: Artículo
Otras publicaciones en: Anuari de psicologia de la Societat Valenciana de Psicologia
Resumen
Meta-analyses are considered as the best tools to synthesize the scientific evidence as to which treatments, interventions, or prevention programs should be applied for a given psychological problem. However, meta-analysis studies are also subject to limitations, such as, publication bias. Therefore, practitioner psychologists need to know how to carry out critical appraisal of them. The goal of this article is to present methods to assessment the publication bias in meta-analytic studies, together with some guidelines to warrant a critical reading of them. The most frequently used are funnel plots, method of the trim and fill, which allow the effects of bias to be estimated, and methods based upon regression on funnel plots, such as Egger’s method. Nevertheless, agreement between these methods in detecting bias is often poor. Therefore, application of more than one method to detect and evaluate of publication bias is recommended.
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