Which of the following is an assumption for the one-way within-subjects ANOVA,but not for the one-way between-subjects ANOVA?
A) normality
B) homogeneity of variance
C) homogeneity of covariance
D) none of these; each is assumed for both tests

Question

Quizplus · Accepted Answer

The one-way within-subjects ANOVA assumes homogeneity of covariance (also known as sphericity), which is not an assumption for the one-way between-subjects ANOVA. This is because within-subjects designs involve repeated measures on the same subjects, which can lead to correlations among the repeated measures that need to be accounted for.

Which of the Following Is an Assumption for the One-Way