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Analysis of Variance2
Nonparametric Statistics2
Hypothesis Testing1
Probability1
Reliability1
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Journal of Educational…2
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Chang, Horng-shing1
Toothaker, Larry E.1
Wilcox, Rand R.1
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On "The Analysis of Ranked Data Derived from Completely Randomized Factorial Designs."
Peer reviewed Peer reviewed
Toothaker, Larry E.; Chang, Horng-shing – Journal of Educational Statistics, 1980
Extensions of the Kruskal-Wallis procedure for a factorial design are examined under various degrees and kinds of nonnullity. It was found that the distributions of these test statistics are a function of effects other than those being tested, except under the completely null situation. Their use is discouraged. (Author/JKS)
Descriptors: Analysis of Variance, Hypothesis Testing, Nonparametric Statistics
Approximating the Probability of Selecting the Best Treatment with a Heteroscedastic Procedure When the First Stage Has Unequal Sample Sizes.
Peer reviewed Peer reviewed
Wilcox, Rand R. – Journal of Educational Statistics, 1983
The problem of determining which of several populations has the largest mean is considered. The procedure described by Dudewicz and Dalal is extended to the case of unequal sample sizes. (JKS)
Descriptors: Analysis of Variance, Nonparametric Statistics, Probability, Reliability