I do not know much about teaching students with autism, but I have a cousin with Asperger's Syndrome. I do know that most students with such disabilities love routines. Reciting the rules, class/yes, teach/okay, etc. are all very reliable routines for students. Although it may be difficult to find hard research on WBT for students with disabilities, I would suggest that you find research on building routines in the classroom for students with disabilities. You can then make a great case for WBT being a good fit. Good luck! Let us know what you find and put a post telling us how your presentation went.