RESEARCH QUESTION 12.4 Dr. Fletcher Is Interested in Whether Joining a Fraternity/sorority Causes

question 21

Essay

RESEARCH QUESTION 12.4
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, where higher scores indicate higher body concerns).
-Refer to Research Study 12.4 above to answer the following question.
In addition to measuring the body concern of the participants who joined a fraternity/sorority immediately before and immediately after they join,Dr.Fletcher measures them for the three weeks before and the three weeks after.Based on the results below,explain whether Dr.Fletcher should be concerned about a testing threat to internal validity.

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Definitions:

Teres Major

A muscle of the upper limb that assists in rotating the arm and bringing it towards the body.

Deltoid

A large triangular muscle covering the shoulder joint, responsible for lifting the arm and giving the shoulder its range of motion.

Teres Major

A muscle of the upper limb that helps in the rotation and adduction of the arm.

Pectoralis Major

A large chest muscle that contributes to arm flexion, rotation, and adduction.