Effect-Size Measures and Meta-Analytic Thinking in Counseling Psychology Research

Autor/in	Henson, Robin K.
Titel	Effect-Size Measures and Meta-Analytic Thinking in Counseling Psychology Research
Quelle	In: Counseling Psychologist, 34 (2006) 5, S.601-629 (29 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0011-0000
DOI	10.1177/0011000005283558
Schlagwörter	Effect Size; Meta Analysis; Counseling Psychology; Psychological Studies; Statistical Significance; Correlation + Suchen Sie Ihr Suchwort? Meta-analysis; Metaanalyse; Counselling psychology; Beratungspsychologie; Korrelation
Abstract	Effect sizes are critical to result interpretation and synthesis across studies. Although statistical significance testing has historically dominated the determination of result importance, modern views emphasize the role of effect sizes and confidence intervals. This article accessibly discusses how to calculate and interpret the effect sizes that counseling psychologists use most frequently. To provide context, the author presents a brief history of statistical significance tests. Second, the author discusses the difference between statistical, practical, and clinical significance. Third, the author reviews and graphically demonstrates two common types of effect sizes, commenting on multivariate and corrected effect sizes. Fourth, the author emphasizes meta-analytic thinking and the potential role of confidence intervals around effect sizes. Finally, the author gives a hypothetical example of how to report and potentially interpret some effect sizes. (Contains 2 tables and 6 figures.) (Author).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10