Which of the following findings provides the most evidence that the family environment influences IQ scores?
A) The IQ scores of identical twins are more similar than those of fraternal twins.
B) Siblings reared together have more similar IQ scores than siblings reared apart.
C) Identical twins reared apart have more similar IQ scores than siblings reared together.
D) The IQ scores of adopted children are more similar to their biological parents than to their adoptive parents.

Question

Quizplus · Accepted Answer

This finding suggests that environmental factors within the family, such as parental influence and opportunities for learning, have a significant impact on IQ scores. The other answer choices relate more to genetic factors, such as heritability and biological connections, rather than environmental influences.

Which of the Following Findings Provides the Most Evidence That