Which hormone functions as a neurotransmitter in the brain, tends to arouse the body, and is linked with anger?

Which of the following represents a positive correlation?

a. Jack has a higher level of education and a higher than his brother, Tim. b. Tim has less education than his brother, Jack, but he makes more money. c. Jack has a high level of education and Tim likes to waterski. d. Tim has more education than his brother, Tim, but also has children.

The experience of loneliness is especially common among

a. college students b. middle-aged industrial workers c. married men d. older women