Your friends Andre and Mia are both above average in intelligence and they are concerned that their new daughter Diane will be intelligent also

They want to know what they can do to shape Diane's environment to increase the chances that she will be above average in intelligence. What can you tell them about the effects of heredity and environment on intelligence?
What will be an ideal response?

A good answer will be similar to the following:
Both heredity and environment influence intelligence. Studies of twins and adopted children provide support for the importance of heredity in influencing intelligence. In twin studies, identical twins have more similar IQ scores than do fraternal twins or other non-twin siblings. Studies comparing adopted children's IQs to those of their biological and adoptive parents have shown that as children grow older their IQs become more similar to their biological parents' IQs. The environment also is important in shaping one's intelligence. Parental behavior is an important aspect of the environment. Children with high IQ scores have parents who are responsive, stimulating, and highly involved. Also, having a variety of toys that are age-appropriate in an organized environment is associated with higher test scores. Diane probably received genes for above average intelligence from her parents and they will probably provide a stimulating environment that nurtures Diane's intellectual development.