A measure of variability that is essentially an average of the sample variances is:
A) the z score.
B) between-groups variance.
C) within-groups variance.
D) the proportionate reduction in error.

Question

Quizplus · Accepted Answer

Within-groups variance is a measure of variability within each group in a study, essentially calculating an average of the variances from each group to understand how much scores differ from the mean within those groups.

A Measure of Variability That Is Essentially an Average of the Sample