Many children with autism spectrum disorder have limited or absent speech and might therefore benefit from learning to use a speech-generating device. The purpose of this study was to evaluate a procedure aimed at teaching three children with autism spectrum disorder to use an iPad-based speech-generating device to make a general request for access to toys, then make a specific request for one of two toys, and then communicate a thank-you response after receiving the requested toy. A multiple-baseline across participants design was used to determine whether systematic instruction involving least-to-most prompting, time delay, error correction, and reinforcement was effective in teaching the three children to engage in this requesting and social communication sequence. Generalization and follow-up probes were conducted for two of the three participants. With intervention, all three children showed improvement in performing the communication sequence. This improvement was maintained with an unfamiliar communication partner and during the follow-up sessions. With systematic instruction, children with autism spectrum disorder and severe communication impairment can learn to use an iPad-based speech-generating device to complete multistep communication sequences that involve requesting and social communication functions.
Waddington, H., Sigafoos, J., Lancioni, G. E., O’Reilly, M. F., van der Meer, L., Carnett, A., . . . Marschik, P. B. (2014). Three children with autism spectrum disorder learn to perform a three-step communication sequence using an iPad-based speech-generating device. International Journal of Developmental Neuroscience, 39, 59–67.