Final answer:
A significantly subnormal cognitive function is called an intellectual disability. It is clinically diagnosed and requires both subaverage intellectual functioning and significant limitations in adaptive skills. The Diagnostic and Statistical Manual of Psychological Disorders lists four subtypes of intellectual disability.
Step-by-step explanation:
A significantly subnormal cognitive function is called an intellectual disability.
Intellectual disability is a clinical diagnosis that requires subaverage intellectual functioning along with significant limitations in adaptive skills. It is characterized by diminished capacities in understanding and processing information, communication, logical reasoning, impulse control, and understanding others' reactions.
The Diagnostic and Statistical Manual of Psychological Disorders lists four subtypes of intellectual disability: mild, moderate, severe, and profound.