Dr. Fletcher is interested in whether joining a fraternity/sorority causes people to become more concerned about their attractiveness and appearance. He recruits a group of 55 freshmen (25 males, 30 females) who are planning to go through fraternity/sorority recruitment on his campus. After they join, he gives them a measure of attractiveness concern/appearance concern (the Body Concern Scale).
In addition to measuring the group of participants who joined a fraternity/sorority, Dr. Fletcher decides to give the same measure to another group of 55 participants who decided to not join a fraternity/sorority. This type of design is known as a(n):
A)interrupted time-series design.
B)nonequivalent control group design.
C)nonequivalent groups interrupted time-series design.
D)reversal design.

Question

Quizplus · Accepted Answer

This is a nonequivalent control group design, as there are two groups being compared (those who joined a fraternity/sorority and those who did not), but they are not completely equivalent as there may be other differences between the two groups that could affect their level of attractiveness concern/appearance concern.

Dr Fletcher Is Interested in Whether Joining a Fraternity/sorority Causes