Autor(en): Böckenhoff, Annette
Hartung, Joachim
Titel: Some Corrections of the Significance Level in Meta - Analysis
Sprache (ISO): en
Zusammenfassung: In many applications we obtain test statistics by combining estimates from different experiments or studies. The usual combined estimator of the overall effect in independent studies leads to systematic overestimates of the significance level, see Li et al. (1994). This results in a great number of unjustified significant evidences. By examination of the convexity of composed functions involved and application of higher and inverse moments of the chi-square distribution we propose corrections for the estimated standard deviation of the overall effect estimator. Analytical results and simulations show that we improve the estimated significance level in such models.
Schlagwörter: combined estimator
meta-analysis
significance level
URI: http://hdl.handle.net/2003/4839
http://dx.doi.org/10.17877/DE290R-5415
Erscheinungsdatum: 1998
Provinienz: Universitätsbibliothek Dortmund
Enthalten in den Sammlungen:Sonderforschungsbereich (SFB) 475

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