The 50 yes-or-no items that make up the ASDS were drawn from five specific areas of behaviour: cognitive, maladaptive, language, social and sensorimotor. All of the items represent behaviours that are symptomatic of Asperger's syndrome. The ASDS provides an AS Quotient that indicates the likelihood that an individual has Asperger's syndrome. Low AS Quotients are indicative of persons with little or no known pathology, whereas higher scores are increasingly more indicative of Asperger's syndrome.
May be used with the Gilliam Autism Rating Scale, 2nd Ed. (GARS-2) and the Childhood Autism Rating Scale, 2nd Ed. (CARS2).