Studies of IQ correlations between twins and other relatives show that the average correlation for
A) identical and fraternal twins decreases into adulthood.
B) fraternal twins living together is stronger than the average correlation for identical twins living apart.
C) twin and nontwin siblings living together is stronger than the average correlation for those living apart.
D) fraternal twins living apart is stronger than the average correlation for nontwin siblings living together.
C
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What will be an ideal response?
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