Shafallah Center for Persons with Disabilities relies on applied behavior analysis as an evidence-based methodology, which confirms its effectiveness in intervening and achieving positive results with people with various developmental disabilities (Intellectual Disabilities, Autism Spectrum Disorder), ABA refers to a set of principles that focus on how behaviors change, or are affected by the environment, as well as how learning takes place. The term behavior refers to skills and actions needed to talk, play, and live.