Overview
A disorder characterised by significant limitations in both intellectual functioning and adaptive behaviour, with onset during the developmental period.
Diagnostic criteria overview
- Criterion a: deficits in intellectual functioning confirmed by clinical assessment and standardized testing
- Criterion b: deficits in adaptive functioning resulting in failure to meet developmental and sociocultural standards
- Criterion c: onset during developmental period
Symptoms
- Limitations in reasoning, problem solving, planning, abstract thinking, judgment, academic learning
- Communication difficulties, impaired social understanding
- Deficits in daily living skills including self-care, safety, and work
Impact on functioning
- Difficulty understanding instructions without repetition or visual support
- Slower learning of daily routines and practical skills
- Challenges managing personal care tasks independently
- Difficulty generalising learned skills to new environments
- Increased reliance on structured routines