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Dr Erickson Studied a Number of Monozygotic Twins and Reports

Question 185

Multiple Choice

Dr. Erickson studied a number of monozygotic twins and reports that the heritability of friendliness is -1.35. You do not believe him. Why?


A) The actual heritability is +.90.
B) He should have studied dizygotic twins.
C) He should have studied fraternal twins.
D) He should have studied identical twins.
E) Heritability cannot drop below -1.0.

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