The correlation of IQs between identical twins reared
together is 0.86 and drops to 0.72 when the identical twins are reared apart. Psychologists who emphasize genetics take this to mean that
a. genetics plays no role in determining intelligence.
b. the first few months of a baby's life are critical in the formation of intelligence.
c. IQs tend to follow the mother.
d. differences in adult intelligence are roughly 50 percent hereditary.
ANSWER: d
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Suppose that you are observing a group of preschool children, as part of a class assignment. You notice that three boys have taken over a sandbox in the corner of a playground, and they are saying to a girl, "No, you can't play here because you aren't a boy.". The boys' behavior is an example of
a. modeling. b. heterosexism. c. entitlement. d. stereotype threat.
Mortality is a problem in research because _____
a. when subjects drop out, we don't know exactly how the results are affected b. without random assignment, the experimenter can't control who is in which group c. it means the comparison group was never equivalent to the treatment group d. when subjects die, the researcher could be named in a lawsuit
The part of the neuron that transmits messages to other neurons is called the ______
a. nucleus c. dendrite b. axon d. soma
Which of the following drugs is NOT considered a narcotic?
a. GHB b. codeine c. heroin d. oxycodone