When Brett was born, he and his identical twin were separated and have been living on opposite sides of the country ever since in houses of equal socioeconomic status yet with parents employing drastically different parenting styles. Which of the following are Brett and his twin MOST likely to share?
A) a sense of rebelliousness
B) level of anxiety
C) IQ score
D) music preference

Question

Quizplus · Accepted Answer

Identical twins, even when raised apart, tend to have similar IQ scores due to the strong genetic component of intelligence. Other factors like a sense of rebelliousness, level of anxiety, and music preference are more significantly influenced by environment and upbringing.

When Brett Was Born, He and His Identical Twin Were