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Intellectual disability (formerly called mental retardation) is a decreased ability to think and learn. It’s caused by a problem with how the brain works.
The diagnosis is based on intelligence quotient (IQ) tests and a child's learning problems.
The disability can range from mild to severe. People who have intellectual disability may have a hard time with:
Last Revised: July 1, 2013
Author: Healthwise Staff
Medical Review: John Pope, MD - Pediatrics & Louis Pellegrino, MD - Developmental Pediatrics
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