Applied Behavior Analysis (ABA) is a popular intervention approach for individuals with disabilities, especially young children with autism. Unfortunately, however, there are widespread misconceptions regarding what ABA really entails. Many people associate ABA with a narrow set of practices rather than understanding the wealth of applications it offers and the ways in which ABA can be used to improve childrens behavior and lives. The purpose of this article is to define ABA in practical terms, helping families to seek the best and most appropriate applications for their children.