Age: 1 year to 100 years
Time to Administer: 40–60 min.
Method of Administration: Using a series of standardized “presses”, clinician engages the examinee in a range of activities using interactive stimulus materials that are designed to elicit specific behaviors that are consistent with ASD
Modules 1-4 yield Overall Total Score based on algorithm items, which permit comparison of cutoff scores associated with “autism”, “autism spectrum”, and “non-spectrum”.
Toddler Module yields Overall Total Score that is associated with “ranges of concern” rather than cutoffs, which are designed to assist in forming clinical impressions
Note 1: The ADOS-2 developers caution against reporting of scores in reports because they are easily misinterpreted in ways that result in invalid use of scores. The test authors encourage focusing on descriptions of the behaviors observed during ADOS-2 administration that lead to the overall ADOS-2 classification.
Note 2: Instrument requires special training to administer.
Subscales: Overall Total; Domain scores for Social Affect, Restricted and Repetitive Behaviors; Comparison Scores (to provide an indicator of severity and aid in comparison across Modules or time)