The Power of t and Wilcoxon Statistics

R.Clifford Blair and J.J. Higgins
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R.Clifford Blair: University of South Florida
J.J. Higgins: Kansas State University

Evaluation Review, 1980, vol. 4, issue 5, 645-656

Abstract: Computer-generated Monte Carlo techniques were used to assess the relative power of Wilcoxon's rank-sum test and the independent means t test under a certain mixed normal distribution. Results showed a very largepoweradvantagefor the Wilcoxon statistic. This indicates that the very large advantages promised by asymptotic theory may be obtained with samples of sizes commonly encountered in social science research.

Date: 1980
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Persistent link: https://EconPapers.repec.org/RePEc:sae:evarev:v:4:y:1980:i:5:p:645-656

DOI: 10.1177/0193841X8000400506

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