Ruth Anne Rehfeldt, PhD, BCBA, is professor of behavior analysis and therapy at Southern Illinois University in Carbondale, IL. She holds doctoral and master’s degrees in psychology from the University of Nevada, Reno; and a bachelor’s degree in psychology from the University of Puget Sound. She is also a board-certified behavior analyst. Ruth Anne is a fellow of the Association for Behavior Analysis International, and previous editor of The Psychological Record. She has published numerous articles in the area of verbal behavior and derived relational responding for individuals with autism spectrum disorder (ASD) and other developmental disabilities.