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

question 18

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 Body Concern of the participants who joined a fraternity/sorority both immediately before and immediately after they join, Dr. Fletcher measures them for the 3 weeks before and the 3 weeks after. This type of design would be able to better address which of the following threats to internal validity?

• A)History
• B)Testing
• C)Selection-history
• D)Experimenter bias

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Definitions:

Virtually

In essence or effect, though not in actual fact; almost or nearly.

Prenatal Factors

Environmental and genetic influences that affect the development of the fetus during pregnancy.

Temperament

The aspects of an individual's personality, such as introversion or extroversion, that are believed to be innate rather than learned.

Differentiating

The process of distinguishing or identifying differences between two or more things or people.