Approximately __________ of the population variation in extroversion and neurotic ism is due to genetic influences.

A) 10 percent
B) 25 percent
C) 40 percent
D) 60 percent

C) 40 percent

Psychology

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ADHD is estimated to occur in about ____ percent of adults

a. 1 b. 3 c. 8 d. 14

Psychology

Strong emotions can kill you in two ways, which are

a. stress-related sympathetic effects and the parasympathetic rebound. b. stress-related limbic system effects and the reticular formation rebound. c. underreactions of both the sympathetic and parasympathetic systems. d. underreactions of both the limbic system and the reticular activating system.

Psychology