Which of these is an element of the formal definition of mental retardation?
A) adaptive behavior severely below a level appropriate for the person's age
B) evidence of brain damage
C) slower than normal reflexes
D) onset of deficits prior to age 6

Question

Quizplus · Accepted Answer

The formal definition of mental retardation includes significantly below-average intellectual functioning and deficits in adaptive behavior, with onset before age 18.

Which of These Is an Element of the Formal Definition