The symptoms most commonly associated with schizophrenia are
a. manifestations of one or more distinct personalities.
b. delusions and hallucinations.
c. rapidly alternating periods of anxiety and depression.
d. extreme impulsiveness and sensation seeking.
Answer: b. delusions and hallucinations.
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Theory of mind research indicates that by age 3, children realize that
A) doing well on a task depends on focusing attention. B) a person reading a book or looking at pictures is thinking. C) thinking takes place inside their heads. D) if you "know" something you are more certain than if you "guessed."
One advantage of using meta-analysis to study sex differences is that it
A) allows conclusions based on single studies. B) calculates conclusions using small samples. C) provides an estimate of the size of the sex differences. D) requires little data, yet provides precise information.