Advertisement

What is intellectual disability?

Dr. Michael Roizen, MD
Internal Medicine
The definition of an intellectual disability (previously known as mental retardation) is controversial. But there is general agreement that it is significantly subaverage intellectual function (individually administered IQ test of approximately 70 or below) associated with other deficits or impairments in such areas as communication, self-care, and social skills. In infants and children up through three years of age, infant psychological tests are poor predictors of later IQs. However, children with very low scores (less than 50) will likely have an intellectual disability. Intellectual disabilities are found in about 2 percent to 3 percent of the population.
YOU: Raising Your Child: The Owner's Manual from First Breath to First Grade

More About this Book

YOU: Raising Your Child: The Owner's Manual from First Breath to First Grade

There’s little doubt that parenting can be one of the most rewarding and satisfying experiences you’ll ever have. But it can be plenty tough, too: Around the clock, you’re working to keep your...

Continue Learning about Brain and Nervous System

Is Being a Couch Potato Bad for Your Brain?
Is Being a Couch Potato Bad for Your Brain?
We all know how easy it is to come home after a long day and plop down for some quality time with Netflix. But we’ve got some bad news for couch potat...
Read More
What are some advancements in neurosurgery?
Sunrise Hospital & Medical CenterSunrise Hospital & Medical Center
Minimally invasive spinal surgery is the major advancement in neurosurgery.
More Answers
What disorders are associated with Tourette syndrome (TS)?
Dr. Charles J. Sophy, MDDr. Charles J. Sophy, MD
Disorders such as obsessive-compulsive disorder (intrusive thoughts, worries, and repetitive behavio...
More Answers
How Has Our Understanding of the Human Brain Changed Over the Years?
How Has Our Understanding of the Human Brain Changed Over the Years?

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.