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

question 43

Essay

Dr. Fletcher is interested in understanding 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, where higher scores indicate higher body concerns).
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. Based on the results below, explain whether Dr. Fletcher should be concerned about a history threat to internal validity.

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Definitions:

Perceptual Tricks

Perceptual tricks are visual or auditory illusions that deceive the senses, leading to misinterpretation of reality.

Obvious Error

A clear and unmistakable mistake that is easily recognized or identified.

Systematic Approach

A methodical process that follows a fixed plan or system, often used in problem-solving and decision-making to ensure thoroughness and accuracy.

Spell-checker

A software tool or feature that identifies and corrects spelling errors in text.