Based on what is known about the heritabilities of mild and profound forms of retardation,you would expect the siblings of mildly retarded children to have _____ IQs and the siblings of profoundly retarded children to have ____ IQs.

Question

Quizplus · Accepted Answer

Mild retardation often has a genetic component, so siblings may also have lower than average IQs. Profound retardation is more often due to non-genetic factors, so siblings are likely to have average IQs.

Based on What Is Known About the Heritabilities of Mild