Hierarchy classification:

1. top of the aat hierarchies
2. Associated Concepts Facet
3. Associated Concepts (hierarchy name)
4. scientific concepts
5. biological concepts
6. [health and related concepts]
7. health-related concepts
8. developmental concepts

Anotations

Scope note:

Condition manifested by subnormal intellectual functioning that originates during the developmental period. This has multiple potential etiologies, including genetic defects and perinatal insults. Intelligence quotient (IQ) scores are commonly used to determine whether an individual has an intellectual disability. IQ scores between 70 and 79 are in the borderline range; scores below 67 are in the disabled range.