At certain times in the menstrual cycle, women demonstrate a preference for a mate that has the greatest degree of facial symmetry, facial masculinity, and a muscular physique. These demonstrate a male's degree of

Drugs that are formulated to mimic the effects of hallucinogens while supposedly avoiding negative side effects are known as _____

a) lab drugs. b) manufactured drugs. c) designer drugs d) club drugs

Decreases in one measure are matched by increases in the other measure in a

a. nonexistent relationship. b. positive correlation. c. negative correlation. d. zero correlation.