WHAT IS AN INTELLECTUAL DISABILITY?
Intellectual disability is a disability characterized by significant limitations both in intellectual functioning (reasoning, learning, problem solving) and in adaptive behavior, which covers a range of everyday social and practical skills. This disability originates before the age of 18.
IS INTELLECTUAL DISABILITY THE SAME AS DEVELOPMENTAL DISABILITY?
Not exactly. Developmental disability is an umbrella term that includes intellectual disability but also includes physical disabilities. Some developmental disabilities can be strictly physical, such as blindness from birth. Some individuals have both physical and intellectual disabilities stemming from genetic or other physical causes (e.g., Down Syndrome, fetal alcohol syndrome). Sometimes intellectual disabilities can stem from nonphysical causes, such as the level of child stimulation and adult responsiveness.
Read full article from: American Association on Intellectual & Developmental Disabilities