Children with developmental disabilities and complex communication needs who use augmentative and alternative communication (AAC) have limited opportunities to communicate and few trained conversation partners to interact with. Research literature on interventions utilizing AAC devices and systems to increase communication skills overwhelmingly focus on researcher-mediated interventions to increase communication behaviors related to requesting items or information and responding to academic questions. The current study used a concurrent multiple-baseline design across 3 parent-child dyads to investigate the effectiveness of telepractice parent training on parent fidelity of a parent-mediated intervention using most-to-least prompts and progressive time delay. This parent-mediated intervention to increase children's responses to intraverbal personal questions using a speech generating device on video calls provides preliminary evidence that researchers can effectively use telepractice to deliver behavioral skills training to increase parent skills in using behavioral strategies to increase reciprocal communication by children with complex communication needs who use speech generating devices. Limitations and future research are discussed. [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.bibliotheek.ehb.be/en-US/products/dissertations/individuals.shtml.]