Professor House believes that regular exercise boosts academic achievement.To find out,over the course of six months she compares the academic achievement of a group of students who by their own admission get little or no exercise,with that of a second group of students who exercise regularly.This is an example of a(n):

Question

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This is a quasi-experiment because the researcher did not randomly assign participants to groups and the groups were not equivalent at the start of the study. Rather, the researcher used pre-existing groups based on participants' self-reported exercise habits.

Professor House Believes That Regular Exercise Boosts Academic Achievement