What is the single best piece of evidence that schizophrenia is not entirely a genetic disorder?

a) The disorder does not begin until a person is in their early twenties.
b) The concordance rate for monozygotic twins is less than 100 percent.
c) Schizophrenia occurs at the same rate among men and women across the world.
d) The concordance rate among dizygotic twins is higher than the rate among monozygotic twins.


B

Psychology

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Compared to the results obtained using other research methods, the results from twin study research

A. probably underestimate the role of genetics in personality. B. make a stronger case for the role of genetic influences on personality. C. are less subject to criticisms about underlying assumptions. D. often are not replicated.

Psychology

Which of the following best describes the relationship of the parasympathetic to the sympathetic nervous system?

a. The parasympathetic system enhances the sympathetic response. b. The parasympathetic system acts independently of the sympathetic system. c. The parasympathetic system reverses the responses stimulated by the sympathetic system. d. The parasympathetic system completely inhibits the sympathetic system.

Psychology

Sarah was found in New York City by her family. At first, Sarah didn't remember who she was or who they were. When they all returned to their home in Florida, Sarah couldn't remember going to New York but regained her memory of her family. Sarah demonstrates

a. dissociative amnesia. c. dissociative identity disorder. b. dissociative fugue. d. depersonalization disorder.

Psychology

According to psychoanalytic perspectives, children and adults are caught in conflict. Early in development, this conflict is between the child and:

a. parental expectations, social rules, and moral codes. b. their sexual and aggressive tendencies. c. their id. d. the child's external limits which have been internalized.

Psychology