Dr. Al-Jamil studies the relations among political affiliations, personality traits, educational attainment, and financial wealth. She recruited participants in the local area between the ages of 25 years and 55 years. During Dr. Al-Jamil's study the United States economy crashed and the dollar lost most of its value. This created a huge economic change for the entire country. What should Dr. Al-Jamil be most concerned with when reviewing her data prior to the crash and after the crash?

Question

Quizplus · Accepted Answer

The economic crash that affected the entire country is an external event that could influence the outcomes of Dr. Al-Jamil's study, making "history" the correct answer. History effects refer to external events that occur during the course of a study that can impact the results.

Dr Al-Jamil Studies the Relations Among Political Affiliations, Personality Traits