Intellectual Disability (ID): An ID is defined as an IQ below 70 (<70).
IQ = (Mental age / Chronological age) x 100
|
Classification |
IQ range |
How to remember? |
|
Mild ID |
50 - 69 |
<70 |
|
Moderate ID |
35 - 49 |
<50 |
|
Severe ID |
20 - 34 |
<35 |
|
Profound ID |
<20 |
<20 |
Extra point-
Developmental age v/s Chronological age (CA):-
Developmental age (DA): The age your child acts like in terms of skills (like talking, walking, thinking), based on how they are developing.
Chronological age (CA): Your child’s real age - how many months or years old they actually are.
E.g. If a 2-year-old child (CA = 24 months) is doing things like an average 18-month-old (DA = 18 months), it means they are a little behind in their development.