What does Mauchly's test measure and in which situations can you use it?
A) It is a test of normal distribution and it looks at the difference scores across the conditions in repeated measures design. It can be used only if we have three or more repeated measures conditions.
B) It is a test of variance and it looks at the homogeneity in the difference scores across the conditions in repeated measures design. It can be used only if we have two repeated measures conditions.
C) It is a test of sphericity and it looks at the variance in the difference scores across the conditions in repeated measures design. It can be used only if we have three or more repeated measures conditions.
D) It is a test of significance and it looks at the difference in the difference scores across the conditions in repeated measures design. It can be used only if we have three or more repeated measures conditions.

Question

Quizplus · Accepted Answer

Mauchly's test measures sphericity, which refers to the equality of variances of the differences between all possible pairs of within-subject conditions. It is applicable in situations with three or more repeated measures conditions to ensure the assumptions for certain statistical tests (like ANOVA) are met.

What Does Mauchly's Test Measure and in Which Situations Can