Two types of psychotherapy are compared for treating depression. A random half of the subjects receive each of the treatments. What type of design does this study represent?
A) Single-factor within-subjects
B) Single-factor between subjects
C) One-group pretest-posttest
D) Posttest-only design with nonequivalent control groups

Question

Quizplus · Accepted Answer

This study represents a single-factor between-subjects design where two groups are randomly assigned to different treatments and then compared on the outcome measure of depression. The study does not involve within-subjects comparisons or pretest-posttest measurements, and there is a control group (the other treatment group) in place. There is no indication of a posttest-only design as there is no mention of a control group that did not receive either treatment.

Two Types of Psychotherapy Are Compared for Treating Depression