Jamaal's mother tells him, "If you clean your room, you won't have to do the dishes." What type of contingency is she attempting to apply?

According to LaFrance and Henley, gender differences in personal space, body posture, and gaze are most effectively accounted for by the fact that

a. men have more power and social status in our culture. b. people who have less power don't pay enough attention to people with more power. c. children receive inconsistent punishments and rewards for their gender-appropriate nonverbal behaviors. d. certain nonverbal behaviors are more adaptive in the workplace for men, rather than women.

Using the DSM listings and lifetime prevalence, it is estimated that ____ of the population will experience a psychological disorder at some time in their lives

a. less than 10% b. approximately 27% c. approximately 44% d. close to 60%