Whenever feasible, the process of evaluation of the human services involves the use of two groups. The assignment and the use of the two groups generally include:

a. comparing the gain scores of a group of clients who received the treatment/service at one time with another group that received the treatment/service in a different agency 10 years ago
b. comparing the pretest and posttest scores of a group of people before and after the treatment/service
c. comparing the pretest and posttest scores of a group of people who did not receive the service/treatment
d. comparing the gain scores of a group of clients who received the treatment/service with the scores of a group of clients who did not receive the treatment/ service


Ans: D

Social Work & Human Services

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