_____ is a prolonged and severe stress reaction to a catastrophic event
a) AIDS-related dementia
b) Posttraumatic stress disorder
c) Substance abuse
d) Major depression
Answer: b
Psychology
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One potential source of "error" in a linear regression analysis is the nonlinear "effect" of X upon Y.
a. true b. false
Psychology
Pillard and Bailey's studies on sexual orientation in twins showed that
a. there is little relationship between the sexual orientations of twins. b. there is an almost perfect relationship between the sexual orientations of twins. c. the rate of homosexuality among identical twins is ten times higher than in the general population. d. when one identical twin is a homosexual, the chance of the other being homosexual is about 50%. e. most people do have some homosexual interests.
Psychology