Great question! Research shows that AAC (Augmentative and Alternative Communication) devices can significantly support nonverbal autistic children by providing an alternative or supplement to spoken language (Sigafoos et al., 2006; Binger & Kent-Walsh, 2012). Studies highlight that AAC helps improve speech, language, and social interaction, especially when tailored to the child's needs (Lorah, 2016; Iacono et al., 2016). Naturalistic therapies, like ABA, often integrate AAC to enhance communication in real-life contexts, fostering independence and reducing frustration (Side by Side Therapy). For deeper insights, check out ASHA's AAC portal or the supportive research compilation from United for Communication Choice. You're on the right track exploring these options!