Developmental disabilities studies are the study of long-term disabilities attributed to mental or physical impairment, which manifest before age 18. Typical disabilities include Down's Syndrome, autism, cerebral palsy, and fetal alcohol syndrome. An IQ test generally checks for developmental disability; a score of less than 70 (with 100 being average) indicates a disability. Children with a developmental disability, depending on the severity, may go into special education schools.
About Disability Studies
Developmental disabilities studies is similar to behavioral science, and is also related to cognitive science, social work, and developmental psychology.