Which of the following is FALSE regarding adoption and intelligence?
A) Adoption from poverty into middle-class homes increases intelligence test scores.
B) The intelligence scores of fraternal twins who have been adopted do not correlate with one another.
C) Adoption of neglected children can increase their intelligence test scores.
D) During childhood,adoptive siblings test scores correlate modestly.

Question

Quizplus · Accepted Answer

The statement that the intelligence scores of fraternal twins who have been adopted do not correlate with one another is false. Studies have shown that the IQ scores of adopted siblings, whether biological or fraternal, do not correlate significantly during childhood, but do have a moderate correlation in adulthood.

Which of the Following Is FALSE Regarding Adoption and Intelligence