Measuring adaptive skills is important when a disorder or other condition affects an individual’s daily functioning. The Adaptive Behavior Assessment System-3rd Edition (ABAS-3) measures daily living skills—what people actually do, or can do, without assistance from others. This versatile instrument lets clinicians gather information from several raters in different settings to obtain a broad view of an individual’s functionality. The ABAS-3 is particularly useful for evaluating those with developmental delays, autism spectrum disorder (ASD), intellectual disability, learning disabilities, neuropsychological disorders, and sensory or physical impairments. The ABAS-3 is aligned with the AAIDD, DSM-5, and IDEA specifications. In this workshop, participants will learn the key features of administration and scoring the ABAS-3, as well as how to utilize the Intervention Planning Guide to make individualized, student specific recommendations based on data.