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Comparative Efficacy of the Picture Exchange Communication System (PECS) versus a Speech-Generating Device: Effects on Social-communicative Skills and Speech Development

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TitleComparative Efficacy of the Picture Exchange Communication System (PECS) versus a Speech-Generating Device: Effects on Social-communicative Skills and Speech Development
Publication TypeJournal Article
AbstractThe Picture Exchange Communication System (PECS) and a speech-generating device (SGD) were compared in a study with a multiple baseline, alternating treatment design. The effectiveness of these methods in increasing social-communicative behaviour and natural speech production were assessed with three elementary school-aged children with severe autism who demonstrated extremely limited functional communication skills. Results for social-communicative behaviour were mixed for all participants in both treatment conditions. Relatively little difference was observed between PECS and SGD conditions. Although findings were inconclusive, data patterns suggest that Phase II of the PECS training protocol is conducive to encouraging social-communicative behaviour. Data for speech outcomes did not reveal any increases across participants, and no differences between treatment conditions were observed.
AuthorsBoesch, M., Wendt O., Subramanian A., and Hsu N.
Year of Publication2013
PublicationJournal of Augmentative and Alternative Communication
Volume29
Issue3
Pages197-209
ISSN0743-4618 (print), 1477-3848 (online)
Publisher DOIhttp://informahealthcare.com/doi/abs/10.3109/07434618.2013.818059
Keywords (MeSH)autistic disorder, child, child behaviour, child language, communication, communication aids for disabled, language development, nonverbal communication, social behaviour, speech