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50 Years of ERIC
50 Years of ERIC
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Peer reviewed Peer reviewed
ERIC Number: EJ184148
Record Type: CIJE
Publication Date: 1977
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
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)
Descriptors: Analysis of Variance, Hypothesis Testing, Mathematical Models, Statistical Analysis, Statistical Bias
Publication Type: N/A
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: N/A
Identifiers: F Test; Robustness; Type I Errors