Diana Walker received her PhD in Psychology (Behavior Analysis specialization) from the University of Florida in 1996, where she conducted basic laboratory research with nonhumans and treatment research with adults with intellectual disabilities and severe problem behavior. She then spent ten years conducting NIH-funded research on analgesic, reinforcing, and other behavioral effects of drugs in humans at The University of Chicago. In 2004 Dr. Walker joined The Chicago School of Professional Psychology’s Applied Behavior Analysis (ABA) Department as an adjunct professor. She became full-time departmental faculty in ABA in 2006 and Chair of the department in 2011. Her current research interests include developing feasible, cost-effective behavior-analytic interventions that can be used by the general public or by agencies that have little in the way of economic resources and staff expertise; establishing healthier lifestyles by establishing or reducing habits, such as increasing exercise and decreasing smoking; and the reduction of simple habits like nail biting. Dr. Walker has a strong commitment to diversity and to increasing diversity awareness within the field of behavior analysis. She has served as faculty advisor to two students who applied for and received a Diversity Fellowship award from TCSPP’s Center for Multicultural and Diversity Studies.