If you establish that Mauchly's Test of Sphericity is significant it suggests
A) that the data you have collected have not violated the assumption that there is sphericity in the data - different variance in the difference scores across conditions.
B) that the data you have collected have not violated the assumption that there is sphericity in the data - similar variance in the difference scores across conditions.
C) that the data you have collected have violated the assumption that there is sphericity in the data - similar variance in the difference scores across conditions.
D) that the data you have collected have violated the assumption that there is a lack of sphericity in the data - similar variance in the difference scores across conditions.

Question

Quizplus · Accepted Answer

Mauchly's Test of Sphericity assesses the assumption of sphericity in repeated measures ANOVA, which requires that the variances of the differences between all combinations of related groups are equal. A significant result indicates a violation of this assumption, meaning the variances are not equal.

If You Establish That Mauchly's Test of Sphericity Is Significant