A disability that involves “significant limitations both in intellectual functioning (reasoning, learning, problem solving) and in adaptive behavior, which covers a range of everyday social and practical skills,” according to the American Association on Intellectual and Developmental Disabilities. Those with IQ test scores of 75 or lower are considered intellectually disabled. Intellectual disabilities typically develop in individuals before the age of 18. This contrasts with congenital disorders such as Down syndrome, which develop before or at birth.
Use people-first language, stating that someone is a person with an intellectual disability rather than referring to the person as intellectually disabled.« Back to Glossary Index