Professor House believes that regular exercise boosts academic achievement. To find out if that is true, she compares, over the course of six months, 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):

What used to be called "neuroses" are now commonly called

(a) psychoses (b) psychopathological states (c) less serious syndromes (LSSs) (d) anxiety disorders (e) neurotic states

Which of the following is true about obesity?

a. 1 out of 3 adult Americans are obese. b. Less than one half of African American women over the age of 40 are obese. c. Problems with unhealthy weight gain in the United States have been decreasing. d. Successful dieting leads to weight control for most people.