Applied Behavioral Analysis (ABA) is a systemic treatment for Autism Spectrum Disorders (ASDs) based on scientific research. It is used to teach functional and relevant skills to give young children with ASDs the tools they need to learn to succeed. Behavior analysis focuses on the principles that explain how learning takes place. Positive reinforcement is one such principle. When a behavior is followed by some sort of reward, the behavior is more likely to be repeated. Through decades of research, the field of behavior analysis has developed many techniques for increasing useful behaviors and reducing those that may cause harm or interfere with learning.

Applied behavior analysis (ABA) is the use of these techniques and principles to bring about meaningful and positive behavioral change. It is most commonly used with the treatment for Autism Spectrum Disorders (ASDs) but it can also be used to teach any functional skills, including school related skills.