Identical Twins Have IQ Correlations Around

question 9

Multiple Choice

Identical twins have IQ correlations around .7 to .8,whereas fraternal twins have IQ correlations of about .3 to .4.What do these correlations suggest?

• A)Identical twins have very similar IQs while fraternal twins do not.
• B)Both identical twins and fraternal twins have similar IQs.
• C)Fraternal twins have very similar IQs while identical twins do not.
• D)Neither identical twins or fraternal twins have very similar IQs.

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