The handbook examines the latest advancements in applied behavior analysis (ABA) as the preferred method of treatment for children diagnosed with autism spectrum disorder (ASD). It synthesizes the most current research data and trends with best-practice interventions to form a comprehensive, state-of-the-art resource. The handbook reviews ABA research and practices in depth and identifies the interventions most relevant to children across the autism spectrum. Key areas of coverage include: Foundations of applied behavior analysis. ABA treatments for disorders comorbid with autism spectrum disorder. Functional assessment for children with autism. Operational definitions as well as observing and recording data for children with autism. The relationship of measures of psychopathology and applied behavior analysis. Transitioning across tasks for children with autism, including toe walking, feeding problems, and self-help issues. Anxiety, depression, and ADHD in children with autism. The Handbook of Applied Behavior Analysis for Children with Autism is an essential reference for researchers, clinicians and graduate students as well as clinicians, therapists, and other practitioners across such interrelated disciplines as clinical child, school, and developmental psychology, child and adolescent psychiatry, social work, rehabilitation medicine/therapy, pediatrics, and special education.