Characteristics of autism spectrum disorder -- Searching for the cause of autism spectrum disorder -- Examining the evidence for treatment of autism spectrum disorder -- Principles of applied behavior analysis -- Basic procedures based upon principles of learning -- The Lovaas Institute : intensive early intervention -- The Koegel Center: pivotal response training -- Strategic teaching and reinforcement systems (STARS): verbal behavior -- Project DATA: school-based inclusion model -- May Institute: system of care -- New England Center for Children: teaching independence -- Princeton Child Development Institute: across the lifespan -- Judge Rotenberg Center: zero exclusion -- Observations and reflections.