Given the following values for a desirable outcome variable such as self-esteem, the Cohen's d effect size is: Experimental group mean = 70
Control group mean = 60
Standard deviation = 20
A)+ 10.0
B)- 10.0
C)+ 0.50
D)- 0.50

Question

Quizplus · Accepted Answer

To calculate Cohen's d, we need to subtract the control group mean from the experimental group mean (70-60=10) and then divide by the standard deviation (10/20=0.5). A positive result indicates that the experimental group had higher scores (in this case, higher self-esteem) than the control group, and the effect size is moderate (0.5).

Given the Following Values for a Desirable Outcome Variable Such