Human behavior, both normal and abnormal, is the result of biological, psychological, and social factors

A research procedure in which a variable is manipulated and the manipulation's effect on another variable is observed is known as a( n ):

A)experiment. B)epidemiological study. C)factorial study. D)incidence study.

Researcher Taylor and her colleagues (2000) pointed out that most research on the fight-or-flight response is limited by having been done primarily on

a. rats. b. males. c. nonhuman species. d. organisms that are experiencing novel as opposed to familiar stressors.