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Drummond, Gordon B.; Vowler, Sarah L. – Advances in Physiology Education, 2012
These authors have previously described how to use the "t" test to compare two groups. In this article, they describe the use of a different test, analysis of variance (ANOVA) to compare more than two groups. ANOVA is a test of group differences: do at least two of the means differ from each other? ANOVA assumes (1) normal distribution…
Descriptors: Test Results, Statistical Analysis, Multivariate Analysis, Evaluation Methods