In the Case of IQ Scores, a Large Number of Separate

question 14

Multiple Choice

In the case of IQ scores, a large number of separate studies of several thousand twins have produced estimates of the average correlation between monozygotic twins of approximately r = __________ and same- sex dizygotic twins in the region of r = ___________.

• A) 1; 0.83
• B) 0.86; 0.44
• C) 0.93; 0.83
• D) 0.86; 0.60

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