Lee selected people with only the highest self-esteem scores for her experiment on the effects of divorce on self-esteem.She should be particularly alert to which potential source of internal invalidity?
A)history
B)maturation
C)testing
D)statistical regression
E)mortality

Question

Quizplus · Accepted Answer

Statistical regression could be a potential source of internal invalidity in this case, as individuals with high self-esteem scores may have been selected based on their initial high scores, which could then regress towards the mean over time, regardless of the effects of divorce on self-esteem.

Lee Selected People with Only the Highest Self-Esteem Scores for Her