A disorder characterized by significantly impaired cognitive functioning and deficits in two or more areas of adaptive functioning (conceptual skills, social skills, daily living skills), with onset before 18 years of age. Intellectual disability is usually defined as an intelligence quotient (IQ) of 70 or below. Also referred to as mental retardation.
A notable decline in intellectual capacity and challenges in adapting to societal norms and expectations are characteristic of a condition known as intellectual disability. Typically, this condition is linked to an intelligence quotient (IQ) below 70.