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

question 57

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. 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)testing threat.

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Definitions:

Outgroup Homogeneity Effect

cognitive bias referring to the tendency to see members of an outgroup as more similar to each other than members of one's ingroup.

Similar

Having traits or characteristics in common; alike in substance or essentials.

Individuals

Separate and distinct entities often referenced in the context of discussing unique persons or single members of a group.

Ethnocentrism

The belief that one's own culture, nation, or ethnicity is superior to all others.