Applied Behavior Analysis (ABA) is an evidence-based treatment that is effective for people of all ages (from early childhood through adulthood), can involve one-to-one teaching or group instruction, and is provided in a variety of settings (e.g. clinics, homes, and schools). The goal of ABA therapy is to increase helpful, meaningful behavior and skills, and to reduce behavior that is harmful or negatively affects the individual. Each program is written to meet the needs of each individual learner.