Which group is at the highest risk for completing suicide?

A person is more likely to help another person in an emergency when

a. the rewards of helping outweigh the costs. b. the potential helper feels empathic arousal. c. the potential helper is in a state of heightened arousal. d. all of these are present.

Your textbook discusses a typical theory about brain lateralization. According to this discussion, gender differences in cognitive performance can be traced to the observation that

a. males process most information using the left hemisphere, whereas females primarily use the right hemisphere. b. males' brains show more lateralization than females' brains, so that a larger portion of the right hemisphere can process spatial information. c. males' brains show more lateralization than females' brains, leading to a decreased ability in combining different cognitive skills. d. verbal tasks use the right hemisphere in males, but the left hemisphere in females.