Omega-squared corrects for the number of groups and the size of error in an analysis of variance test;eta-squared does not.

Question

Quizplus · Accepted Answer

Omega-squared is a more accurate measure of effect size than eta-squared because it takes into account the size of the error term and is biased less by the number of groups being compared. Eta-squared, on the other hand, does not take into account the size of the error term and is more affected by the number of groups being compared.

Omega-Squared Corrects for the Number of Groups and the Size