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 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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The Answer of 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 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.

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