A bar graph is appropriate for presenting the frequency distribution of a discrete variable.

What has research on the relation between reaction to negative life events and sense of humor in undergraduates found?

a) Students reported less depression if they had a high sense of humor. b) Students reported more depression if they had a high sense of humor. c) Students who did not rely on humor during negative life events were less depressed. d) Students reported less depression if their sense of humor was not affected by the life event.

Which of the following BEST explains why the glass ceiling occurs?

A) ?Misperceiving women's family responsibilities. B) ?Negative evaluations of women who do not adhere to gender-typed behaviors C) ?Differing perceptions of men's and women's leadership behaviors D) ?All of these can account for the glass ceiling.