Autism Diagnostic Assessment (ADOS)
The Autism Diagnostic Observation Schedule (ADOS) is a semi-structured, standardized assessment of communication, social interaction, and play or imaginative use of materials to help diagnose Autism Spectrum Disorders and Aspergers. The activities and materials are structured to provide standard context in which social interactions, communication, and other behaviors relevant to autism spectrum disorders are observed. It can be administered to subjects ranging from children as young as 18 months old through to adolescence and adulthood. The ADOS is the widely used tool by clinicians when an autism spectrum disorder is suspected; it is flexible, fast, and accurate
The ADOS consists of 4 modules; each formulated to differing developmental and language levels, ranging from little if any expressive or receptive language, as in toddlers, to verbally fluent adults. Each module takes just 45-60 minutes to administer. The examiner selects which module to use based upon the developmental age of the child and how well he or she can talk. Each module consists of about ten tasks that are designed to evoke different kinds of social behaviors, such as sharing and requesting, playing with someone and following, and enjoying attention.