Experimental research would be more useful than correlational research to test the hypothesis that
A) intelligent parents invest more time in their children's education.
B) same-sex classrooms cause girls to develop more positive attitudes toward math.
C) introverted people dislike large social gatherings.
D) alcohol consumption predicts weight gain.

Question

Quizplus · Accepted Answer

Experimental research allows the manipulation of variables to establish cause-and-effect relationships. In choice B, manipulating the classroom setting (same-sex vs. mixed-sex) to observe its effect on girls' attitudes toward math directly tests a causal hypothesis. The other options describe relationships that would typically be explored through correlational studies, which can indicate associations but not causality.

Experimental Research Would Be More Useful Than Correlational Research to Test