Based on the research into genetic factors, the risk of having schizophrenia is
a. unrelated to the presence of schizophrenia in family members.
b. greatest among people when a fraternal twin has suffered from the disorder.
c. greatest among people when both parents have suffered from the disorder.
d. greatest when no one in the family has suffered from the disorder.
Answer: c. greatest among people when both parents have suffered from the disorder.
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Which of the statements about personality in relation to living a long life is true?
a. Personality plays a measurable role in longevity. b. Personality is the best predictor of longevity. c. Personality plays a primary role in longevity for women, but not men. d. Personality plays no role in longevity.
In Freudian theory, the term for the energy of the life instincts is
a. sex. b. libido. c. life drive. d. pro-life.