The ADOS-2 is the "gold standard" for autism spectrum diagnosis.  It looks to assess the key indicators of autism spectrum disorder including communication, social interaction, restricted and repetitive behaviors.  The assessment is approximately 1.5-2 hours long and is play and communication based between the therapist and client.  There are no worksheets or checklists for parents or clients to complete.  Prior to the day of testing, the therapist will request a full social and developmental history of the client. Following testing, the therapist will provide a full report that may be taken to other providers to secure services.