Cohen's d refers to
A) the probability associated with t .
B) the difference between the means before and after treatment.
C) the "diagnostic" statistic.
D) the difference between the means before and after treatment divided by a standard deviation.

Question

Quizplus · Accepted Answer

Cohen's d is the effect size measure that represents the difference between the means before and after treatment divided by a standard deviation. It is used to determine the magnitude of the difference between two groups or conditions.

Cohen's D Refers to