How to Estimate and Interpret Various Effect Sizes

Autor/inn/en	Vacha-Haase, Tammi; Thompson, Bruce
Titel	How to Estimate and Interpret Various Effect Sizes
Quelle	In: Journal of Counseling Psychology, 51 (2004) 4, S.473-481 (9 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0022-0167
Schlagwörter	Effect Size; Research Methodology; Computation; Data Interpretation; Statistical Analysis + Suchen Sie Ihr Suchwort? Research method; Forschungsmethode; Data evaluation; Datenauswertung; Statistische Analyse
Abstract	The present article presents a tutorial on how to estimate and interpret various effect sizes. The 5th edition of the Publication Manual of the American Psychological Association (2001) described the failure to report effect sizes as a "defect" (p. 5), and 23 journals have published author guidelines requiring effect size reporting. Although dozens of effect size statistics have been available for some time, many researchers were trained at a time when effect sizes were not emphasized, or perhaps even taught. Consequently, some readers may appreciate a review of how to estimate and interpret various effect sizes. In addition to the tutorial, the authors recommend effect size interpretations that emphasize direct and explicit comparisons of effects in a new study with those reported in the prior related literature, with a focus on evaluating result replicability. (Author).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10