Subthreshold conditions of anorexia nervosa are not associated with problems in social or occupational functioning

If people differ because of a "cohort effect," what caused the difference?

a. Genetic variations in the proteins that guide brain development b. The way in which investigators measured a behavior c. The historical era in which people grew up d. Physical injuries or illnesses

Which statement regarding the validity of psychological and medical tests is accurate? a. Psychological tests are less accurate than medical tests in detecting conditions. b. Medical tests are less accurate than psychological tests in detecting conditions. c. Medical and psychological tests are inaccurate in detecting conditions

d. Psychological tests are as or more valid than medical tests in detecting conditions.