A researcher who administers a personality test to the same children every 3 years as they progress through school is conducting a(n) ________ study.

Abraham Maslow attempted to account for human motivation in terms of

a. the hierarchy of needs. b. locus of control. c. intrinsic and extrinsic motivation. d. the two-factor theory of figure and ground. e. overjustification for bad behavior.

Which of the following is a physiological symptom of depression?

a. lowered productivity b. poor hygiene c. anhedonia d. appetite and weight changes