IMPORTANT: Diagnosis should NOT be based on a screening tool alone. A proper diagnosis requires observations of the patient, information from caregivers, educators, and primary doctor.

Screening Tools

Select Diagnostic Tools

Autism Diagnosis Interview – Revised (ADI-R) (18mo +)
A clinical diagnostic instrument for assessing autism in children and adults. The instrument focuses on behavior in three main areas: reciprocal social interaction; communication and language; and restricted and repetitive, stereotyped interests and behaviors.

Autism Diagnostic Observation Schedule – (ADOS-G)
A semi-structured, standardized assessment of social interaction, communication, play, and imaginative use of materials for individuals suspected of having ASD. The observational schedule consists of four 30-minute modules, each designed to be administered to different individuals according to their level of expressive language.

Childhood Autism Rating Scale (CARS) (2yrs+)
CARS includes items drawn from five prominent systems for diagnosing autism; each item covers a particular characteristic, ability, or behavior.

Gilliam Autism Rating Scale – Second Edition (GARS-2)
Assists teachers, parents, and clinicians in identifying and diagnosing autism in individuals ages 3 through 22. It also helps estimate the severity of the child’s disorder.