This month’s Autism 200 series class, Autism 202–Best Practices in ASD Treatment: Applied Behavior Analysis Update, was led by Mendy Minjarez, PhD, and Elizabeth Hatzenbuhler, MS, BCBA. They provided an overview of the defining features of the science of applied behavior analysis (ABA), examples of how it can be applied and identify quality indicators that can be used to evaluate ABA programs. The class also highlighted some of the misconceptions and sources of confusion about ABA, including the