ABA stands for Applied Behavior Analysis. It is a scientific discipline and approach to understanding and modifying behavior. ABA is commonly used in the field of psychology and is often associated with the treatment of autism spectrum disorders (ASD). It involves systematically analyzing behavior, identifying the environmental factors that influence it, and implementing strategies to bring about positive changes.

ABA techniques are based on the principles of learning theory and focus on increasing desired behaviors and reducing problematic behaviors. This is achieved through the use of various strategies such as positive reinforcement, prompting and fading, shaping, and functional behavior assessments. ABA interventions are typically individualized and tailored to meet the specific needs of the person receiving treatment.

ABA has been widely used in educational settings, clinical settings, and home-based programs for individuals with ASD. It has also been applied to address a range of other behavioral challenges, such as developmental disabilities, attention deficit hyperactivity disorder (ADHD), and behavioral issues in children and adults.