Women seeking to reduce the risk of their offspring developing schizophrenia would do well to seek a mate who
a. is in his early twenties.
b. has abstained from drugs and alcohol.
c. is older than fifty.
d. smokes marijuana, but does not use alcohol.
e. has an identical twin who is schizophrenic.
Answer: a. is in his early twenties.
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In one well-known social psychological experiment, research participants were brought into a dark room where an experimenter projected dots of light. These dots of light appeared to move slightly as they were projected—though exactly how far they moved the participants couldn't say. When asked to estimate the distance that the light traveled, participants tended to look to others in the room,
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