This study examined the effects of using an online module to train in-service BCBAs and practitioners on practicing cultural humility, responsiveness, awareness, and self-reflection within the ABA field. In the online module intervention, participants were exposed to case scenarios, course materials, and individual cultural humility questions, which highlighted cultural and practice-influenced dilemmas for BIPOC clients. The study implemented training models in culturally humble, responsive and aware practices to improve professionals' skills and understanding. BCBAs and practitioners reported improved skills and comfort levels when implementing ABA evidence-based practices, particularly for clients who may represent culturally diverse backgrounds. The results indicated that BCBAs and practitioners who had training in cultural humility and awareness practices (i.e., case scenarios, course materials, or individual cultural humility questions) reported better understanding of culturally humble, self-reflective, and personal accountability practices for individuals and families from diverse backgrounds. Professionals who participated in this study reported increasing reflective and culturally aware understanding of practices and applications with BIPOC clients after receiving continuing education materials designed to bring attention to diversity and cultural differences. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]