Suppose the IQ scores of fraternal twins raised together were as highly correlated as those of identical twins raised together.This would support:
A)the high heritability for intelligence
B)the different basis of fluid and crystallized intelligence
C)a strong environmental determinant of intelligence
D)a strong genetic determinant of intelligence

Question

Quizplus · Accepted Answer

AIf the IQ scores of fraternal twins (who share about 50% of their genes) raised together are as highly correlated as those of identical twins (who share 100% of their genes) raised together, it suggests a strong environmental influence on intelligence, supporting the idea of high heritability (A) but in the context of shared environment rather than genetics alone. This scenario does not specifically support the different bases of fluid and crystallized intelligence (B) or a strong genetic determinant (D) since the emphasis is on the similarity of the environment's impact on both fraternal and identical twins.

Suppose the IQ Scores of Fraternal Twins Raised Together Were