The approximate cutoff IQ score of 70-75 for defining intellectual disability is based on
A)a statistical concept.
B)qualitative difference in individuals with IQ scores below 70.
C)neurobiological deficits that are only reflected in IQ scores below 70.
D)a fairly arbitrary line drawn between intellectual disability and normal intellect

Question

Quizplus · Accepted Answer

The cutoff IQ score of 70-75 for intellectual disability is based on a statistical concept, as it represents approximately two standard deviations below the mean IQ score of 100 in the general population.

The Approximate Cutoff IQ Score of 70-75 for Defining Intellectual