According to your textbook, which of the following is true?
a. The volume of gray matter in the brain is correlated with intelligence.
b. The IQ of adopted children correlates less with their biological parents than with their adoptive parents.
c. Dizygotic twins raised apart are more similar to each other in IQ than monozygotic twins raised together.
d. The IQ of dizygotic twins is more correlated than that of monozygotic twins.
Answer: a
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Mary and Jane are arguing about the relative carcinogenic content of marijuana smoke and tobacco smoke. Mary says that marijuana smoke is more dangerous to one's health than tobacco smoke. Based upon the research, Mary is:
A. wrong, since the difference between the two is insignificant B. erong, because marijuana smoke has half the carcinogenic content of tobacco smoke C. right, because THC increases the body's susceptibility to carcinogens D. right, because marijuana smoke has about 50 percent greater carcinogenic content than tobacco smoke
Mourning behaviors are relatively free from gender influences
Indicate whether the statement is true or false
The domestication of various species of animals would be of primary importance to which area of specialization in psychology?
a. comparative b. developmental c. environmental d. forensic
According to the biological model, anxiety disorders develop because of
A. some physical condition or disease. B. societal pressure to react with anxiety to certain situations. C. the learning of coping mechanisms. D. a predisposition to suffer severe anxiety.