Autism Diagnostic Observation Schedule (ADOS-2)

Our leading educational and developmental psychologists are experienced in the diagnosis of Autism Spectrum Disorders (ASD).

The Autism Diagnostic Observation Schedule, Second Edition (ADOS-2) is an observational assessment of Autism Spectrum Disorders. It is a semi-structured, standardised assessment of communication, social interaction, play, and restricted and repetitive behaviours. It presents various activities that elicit behaviours directly related to a diagnosis of ASD. By observing and coding these behaviours, psychologists can obtain information that informs diagnosis, treatment planning and educational placement. Clinicians must be trained ADOS-2 administrators as this is the most reliable diagnostic tool currently recognised by international Autism Spectrum Disorder (ASD) experts.

Skills assessed with ADOS-2  

  • Communication
  • Social interaction
  • Play
  • Restricted and repetitive behaviours

The ADOS-2 consists of four modules and a toddler module. Each module contains a series of activities designed for use with children or adults at a particular developmental and language level, ranging from no expressive or receptive language to verbally fluent adults. Only one module is administered to an individual at any given point in time.