Determining Sample Size with a Given Range of Mean Effects in One-Way Heteroscedastic Analysis of Variance

Autor/inn/en	Shieh, Gwowen; Jan, Show-Li
Titel	Determining Sample Size with a Given Range of Mean Effects in One-Way Heteroscedastic Analysis of Variance
Quelle	In: Journal of Experimental Education, 81 (2013) 3, S.281-294 (14 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0022-0973
DOI	10.1080/00220973.2012.731020
Schlagwörter	Sampling; Statistical Analysis; Computation; Research Methodology; Sample Size; Equations (Mathematics); Simulation; Monte Carlo Methods; Effect Size + Suchen Sie Ihr Suchwort? Statistische Analyse; Research method; Forschungsmethode; Equations; Mathematics; Gleichungslehre; Simulation program; Simulationsprogramm; Monte-Carlo-Methode
Abstract	The authors examined 2 approaches for determining the required sample size of Welch's test for detecting equality of means when the greatest difference between any 2 group means is given. It is shown that the actual power obtained with the sample size of the suggested approach is consistently at least as great as the nominal power. However, the sample size given by the method of Guo and Luh (2008) does not always guarantee the minimum power performance. Furthermore, the computed sample size and associated power of their formula tend to be larger than those provided with the proposed procedure. A supplementary computer program is provided to aid the implementation of the proposed technique in planning analysis of variance designs. (Contains 3 tables.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10