Identical twins,Dawn and Denise,are put up for adoption from birth.Although Denise is adopted by a loving upper-class family,Dawn spends most of her childhood in the orphanage.Which of the following will be the most likely outcome?
A) Dawn will have a higher IQ than Denise.
B) Dawn and Denise will have different reaction ranges.
C) Denise will have an IQ near the upper limit of her reaction range.
D) There will be no difference in Dawn and Denise's IQs.

Question

Quizplus · Accepted Answer

The concept of reaction range suggests that an individual's genetic potential for traits like IQ can be influenced by environmental factors. Denise, being in a nurturing and resource-rich environment, is more likely to reach the upper limit of her genetic potential for IQ compared to Dawn, who might not have access to the same level of educational and emotional support in the orphanage.

Identical Twins,Dawn and Denise,are Put Up for Adoption from Birth