A conceptual definition of effect size for an independent variable with two conditions is the difference between the two sample means divided by
A) the sample size, N.
B) the variability within the groups.
C) Cohen's d.
D) the population difference between two means.

Question

Quizplus · Accepted Answer

Effect size for an independent variable with two conditions is often measured as the difference between the two sample means divided by the standard deviation of scores within the groups, which reflects the variability within the groups. This helps in understanding how significant the difference between the groups is, relative to the variability or spread of scores within each group.

A Conceptual Definition of Effect Size for an Independent Variable