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An Observational Study Based on a Sample of Students in Introductory

Question 42

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An observational study based on a sample of students in introductory psychology classes at a university in the Midwestern U.S.compared drinking behavior and hangover symptoms in men and women.To what group can the results of this study definitely be extended?


A) All men and women
B) All men and women of the same age group as those in the study
C) All college students in the Midwestern U.S.
D) None of the above

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