If the correlation between the IQs of identical twins is .86, then, in any group of identical twins, what percent of the variation in the "Y" twins' IQs is accounted for by knowing the IQs of their identical siblings (the "X's")?
a. 22 percent
b. 43 percent
c. 74 percent
d. 86 percent
C
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Fred has been coming in late and been very argumentative with his psychoanalyst. He seems to block all efforts at furthering insight. He is likely showing
a. resistance. c. interpretation. b. transference. d. free association.
What does research show about the empty-nest syndrome, which occurs once the parents' youngest child leaves home?
a. Women experience a sense of loss. b. Men experience a sense of loss. c. Many mothers report increased marital satisfaction. d. Many fathers report increased marital satisfaction.
The first significant supporting evidence for a biological cause of a mental disorder was the 19th century discovery that the psychotic disorder called general paresis was caused by the same bacterial microorganism that causes
A. malaria. B. Alzheimer's disease. C. syphilis. D. The common cold.
The "strength of weak ties" is similar to ____ social capital
a. bonding b. bridging c. formal d. informal