Yolanda wanted to test the effectiveness of a new 4-hour anger management treatment session. She first took 24 clients who had been referred for anger management pre-test) in March and divided them randomly into two groups. One group was assigned to the new 4-hour session, the other group went to a traditional anger management session. Each was given an in-take assessment measuring anger management skills. After clients finished the two-week sessions, she measured the level of anger management skills among all clients in both groups. What experimental design did she use?
A) time series
B) classical experiment
C) one-shot case study
D) static group comparison

Question

Quizplus · Accepted Answer

Yolanda used a classical experiment because she randomly assigned clients to two groups, one of which received the new treatment and the other of which received the traditional treatment. She then compared the level of anger management skills among clients in both groups after they finished the two-week sessions.

Yolanda Wanted to Test the Effectiveness of a New 4-Hour