The purpose of this study was to extend the research on functional communication training by examining the use of a speech-generating device (SGD) for a 7-year-old child with autism and no spoken language who demonstrated inappropriate vocalizations that served multiple functions. An analog functional analysis was used to determine the function of the behavior and the potential viability of the SGD as a treatment option. The child was taught to discriminate among multiple options on the SGD and then to choose an appropriate message in two generalization settings. When the SGD was available the child reduced his inappropriate vocalizations across all settings and increased his engagement in both appropriate activities and interactions with others.
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