Diane Twachtman-Cullen, Ph.D., CCC-SLP, is a communication disorders specialist and licensed speech-language pathologist specializing in autism spectrum disorders and related conditions. She is the founder and editor-in-chief of Autism Spectrum Quarterly. Jennifer Twachtman-Bassett, M.S., CCC-SLP, is a communication disorders specialist and licensed speech-language pathologist specializing in working with students with autism, emotional/behavioral disturbance, and related communication and language impairments.