Dr. Browning is a psychologist who is researching the topic of longevity. She is interested in exploring the attributes of centenarians (people who live past the age of 99). Dr. Browning is likely studying __________

Haley is on antidepressants and now shows lower impulsivity. The antidepressants have likely increased ___________

a. her serotonin levels b. her blood pressure c. the amount of air she can take into her lungs d. the amount of time she thinks about her mistakes

Delaying action until it is appropriate describes the ego's use of the

a. pleasure principle. b. morality principle. c. ego ideal. d. reality principle.