RESEARCH STUDY 12.1 Dr. Fletcher Is Interested in Whether Joining a Fraternity/sorority Causes

RESEARCH STUDY 12.1
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/appearance concern (the Body Concern Scale) .
-Refer to Research Study 12.1 above to answer the following question. 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.After conducting the study,Dr.Fletcher finds out that the people who joined a fraternity/sorority all saw a documentary on body image sponsored by the InterGreek Council the night before recruitment began.This threat to internal validity is known as a:

A) Selection threat
B) Selection-history threat
C) History threat
D) Regression threat
E) Testing threat

Correct Answer:

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