Research indicates that the IQ scores of siblings of individuals with intellectual disability are more consistent (similar to the person with ID)when the level of impairment is mild.

Question

Quizplus · Accepted Answer

Siblings of individuals with mild intellectual disability tend to have more similar IQ scores due to shared genetic and environmental factors, whereas more severe cases often involve unique genetic mutations or conditions not shared by siblings.

Research Indicates That the IQ Scores of Siblings of Individuals