Final answer:
The majority of individuals with an intellectual disability function at the lowered intelligence of disability which may not be easily identifiable.
Step-by-step explanation:
The majority of individuals with an intellectual disability function at the lowered intelligence of disability which may not be easily identifiable.
According to the American Psychiatric Association, an intellectual disability (ID) is diagnosed when a person earns a score approximately two standard deviations below the mean on an intelligence test, has major deficits in adaptive functioning, and these cognitive and adaptive deficits were present before the age of 18.
There are four subtypes of intellectual disability: mild, moderate, severe, and profound.