An effect size index is a measure of the
A) size of the means of the two distributions
B) difference in the means of the two distributions
C) size of the standard deviations of the two distributions
D) size of the ranges of the two distributions.

Question

Quizplus · Accepted Answer

An effect size index measures the magnitude of the difference between two groups, typically represented by the difference in their means. It quantifies the size of the effect that is being measured, rather than the size of the groups, their standard deviations, or their ranges.

An Effect Size Index Is a Measure of the