If the correlation between IQ scores of identical twins raised together is found to be +.85 and the correlation between IQ scores of identical twins reared apart is found to be +.70, the .15 difference found between the two groups is most likely attributa
a. the impact of genetics.
b. the impact of the environment.
c. sampling errors.
d. problems with the instruments used to measure IQ.
Answer: b. the impact of the environment.
Psychology
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Light directed to the back of the knee has recently been found to have an influence on:
a. REM sleep. b. narcolepsy. c. the menstrual cycle. d. night terrors. e. the circadian rhythm.
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