A clinical psychologist developed a new psychotherapy for depression that he calls "shame therapy." In a shame therapy session, he tries to make the client feel bad about being depressed so that they will "snap out of it." To test the effectiveness of shame therapy, he recruits 50 depressed people who are seeking psychotherapy. He gives them a standardized measure of depression and then four weeks of shame therapy. Then he gives them the same standardized measure of depression. He finds that their depression scores drop from a mean of 26 before the therapy to a mean of only 19 after the therapy.
non-equivalent groups quasi-experiment
pretest-posttest quasi-experiment
correlational study
within-subjects experiment
between-subjects experiment
The correct option is pretest-posttest quasi-experiment. In such an experiment, the dependent variable is measured before administering the treatment and after administering the treatment. Here the scores on depression were measured before and after administering the Shame therapy on the participants.
The other options are incorrect because in a correlational study the relationship between two variables is assessed. Here this is a quasi-experiment. In a within-subjects design, all participants are exposed to all conditions of the experiment. Here there was only one treatment condition. Between-subjects design involves assigning participants to different conditions of the treatment. Here there was only one treatment condition.
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A clinical psychologist developed a new psychotherapy for depression that he calls "shame therapy." In a...
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