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  • Title: Comparing acquisition of and preference for manual signs, picture exchange, and speech-generating devices in nine children with autism spectrum disorder.
    Author: Couper L, van der Meer L, Schäfer MC, McKenzie E, McLay L, O'Reilly MF, Lancioni GE, Marschik PB, Sigafoos J, Sutherland D.
    Journal: Dev Neurorehabil; 2014 Apr; 17(2):99-109. PubMed ID: 24392652.
    Abstract:
    OBJECTIVE: To compare how quickly children with autism spectrum disorder (ASD) acquired manual signs, picture exchange, and an iPad/iPod-based speech-generating device (SGD) and to compare if children showed a preference for one of these options. METHOD: Nine children with ASD and limited communication skills received intervention to teach requesting preferred stimuli using manual signs, picture exchange, and a SGD. Intervention was evaluated in a non-concurrent multiple-baseline across participants and alternating treatments design. RESULTS: Five children learned all three systems to criterion. Four children required fewer sessions to learn the SGD compared to manual signs and picture exchange. Eight children demonstrated a preference for the SGD. CONCLUSION: The results support previous studies that demonstrate children with ASD can learn manual signs, picture exchange, and an iPad/iPod-based SGD to request preferred stimuli. Most children showed a preference for the SGD. For some children, acquisition may be quicker when learning a preferred option.
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