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 |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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98_23.pdf | DNB | 216.35 kB | Adobe PDF | Öffnen/Anzeigen |
tr23-98.ps | 190.03 kB | Postscript | Öffnen/Anzeigen |
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