Applied Behavior Analysis (ABA) is a scientific approach used to understand and improve behavior. It focuses on the principles of behavior and learning to encourage positive changes. ABA is often used in various settings, including schools and therapy centers, to help individuals, particularly those with autism spectrum disorder, develop essential skills and reduce challenging behaviors. The techniques of ABA involve breaking down complex tasks into smaller, manageable steps and using reinforcement to encourage desired behaviors. This method is data-driven, meaning that progress is tracked and analyzed to ensure effective interventions. Overall, ABA aims to enhance the quality of life for individuals by promoting independence and social skills.