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:

Internationally Traded Goods

Products and services that are bought and sold across national borders, subject to international agreements and regulations.

Comparative Advantage

The capability of an entity to manufacture a product or provide a service at a reduced opportunity cost compared to its competitors.

Opportunity Cost

The cost of foregone alternatives, the value of the next best alternative that is given up when making a decision.

Comparative Advantage

The ability of a country or firm to produce a particular good or service at a lower opportunity cost than its competitors, leading to more efficient trade and production patterns.