Professor Martinez Wants to Determine the Degree of Change Experienced

Multiple Choice

Professor Martinez wants to determine the degree of change experienced by the client population after a program has been implemented. He can do so by

A) comparing the mean change in the client group to the mean change in a control group.
B) calculating an effect size as an indicator of the program's effectiveness.
C) averaging the amount of change experienced by each client.
D) doing any of the above