What test is used when there has been a violation of sphericity?
A) Chi-square
B) Lower bound
C) Huynh-Feldt
D) None of the above

Question

Quizplus · Accepted Answer

When there is a violation of sphericity (where the variances of the differences between all possible pairs of conditions are not equal), the Huynh-Feldt correction is the recommended procedure for adjusting the degrees of freedom to prevent inflation of Type I error rates. Chi-square and lower bound do not address violations of sphericity.

What Test Is Used When There Has Been a Violation