Helping Children and Adults with Autism | ABA Therapy Stockton | Autism Treatment for Children and Adults in Stockton. Stockton is home to Autism Behavior Services Inc. providing ABA intervention for children and adults. for assessment and testing. We offer functional behavioral assessment (FBA), individualized one to one programs for autism treatment, and parent education and training. Autism Behavior Services, Inc. provides the highest quality of care to children and adults with autism.