DrFletcher Is Interested in Whether Joining a Fraternity/sorority Causes People

question 35

Multiple Choice

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.Doing this would help Dr.Fletcher address all of the following threats to internal validity EXCEPT:

• A)Experimenter bias
• B)Maturation
• C)Selection
• D)History

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