Which of these is an element of the formal definition of intellectual disability?
A) IQ approximately two standard deviations below the mean on a normal curve
B) evidence of brain damage
C) slower than normal reflexes
D) onset of deficits prior to age 6

Question

Quizplus · Accepted Answer

Intellectual disability is formally defined by an IQ approximately two standard deviations below the mean, along with deficits in adaptive functioning, with onset during the developmental period.

Which of These Is an Element of the Formal Definition