Applied Behavioral Analysis

Applied Behavioral Analysis (ABA) is a scientific approach to understanding and changing behavior through systematic observation, measurement, and evidence-based intervention. In accessibility and disability contexts, ABA principles — including positive reinforcement, prompting, shaping, and errorless learning — are widely used in educational and therapeutic programs for people with intellectual disabilities, autism spectrum disorder, and other developmental conditions. When applied to accessible technology design, ABA principles inform features like graduated difficulty levels that adapt to user responses, positive feedback for correct actions, systematic prompting hierarchies, and structured task sequences that build skills incrementally. ABA-based approaches have been both widely adopted and debated, particularly regarding their application in autism interventions.