Following the death of their parents ten years ago,identical twins Glenda and Brenda were placed in an understaffed orphanage.Brenda remained in the orphanage while Glenda was adopted by a loving middle-class couple.Which of the following would be least likely to occur

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Quizplus · Accepted Answer

The concept of a reaction range for intelligence suggests that genetics set the potential for an individual's IQ, but environmental factors determine where within this range an individual's IQ will fall. Since Glenda was adopted into a supportive environment and Brenda remained in an understaffed orphanage, it's less likely that Brenda's IQ would be at the upper limit of her reaction range due to the less stimulating environment.

Following the Death of Their Parents Ten Years Ago,identical Twins