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ERIC Number: EJ184148
Record Type: Journal
Publication Date: 1977
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Is the ANOVA F-Test Robust to Variance Heterogeneity When Sample Sizes are Equal?: An Investigation via a Coefficient of Variation
Rogan, Joanne C.; Keselman, H. J.
American Educational Research Journal, 14, 4, 493-8, F 77
The effects of variance heterogeneity on the empirical probability of a Type I error for the analysis of variance (ANOVA) F-test are examined. The rate of Type I error varies as a function of the degree of variance heterogeneity, and the ANOVA F-test is not always robust to variance heterogeneity when sample sizes are equal. (Author/JAC)
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