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By Jena M. Lohrens


A single-subject multiple baseline design across target sets examined the effectiveness of a hybrid treatment approach, incorporating both linguistic and motor learning strategies, to facilitate multisyllabic productions in three preschool-age children who were at the single-word stage of development. Key to this design was the selection of thirty multisyllabic targets: 15 treatment and 15 control that were matched based on semantic category and phonetic complexity. Overall, results indicated positive gains in two of the three children that could be attributed directly to the applied treatment. Specifically, two of the children produced gains in the treated target sets relative to those that had not yet been treated. In addition, gains in the treated targets as a whole exceeded gains in the control targets that were never explicitly treated. Although the third child did not demonstrate a treatment effect through the probes and assessments, she did produce many of the target forms during the actual treatment phases, reaching mastery on two of the three target sets. Overall the hybrid approach appeared most promising for children with motor planning breakdowns, with or without a concomitant ASD diagnosis, explicitly if basic symbolic understanding and communicative intent have emerged. Particularly promising strategies included: access to a speech-output device, use of functiona

Year: 2010
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