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Evaluation of a Treatment Package to Increase Mean Length of Utterances for Children with Autism

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Abstract

Skinner’s (1957) classification of mand responses has spawned decades of research related to teaching individuals with developmental disabilities. However, few studies have evaluated how to teach individuals with autism to progress from simple to more complex mands for desired items and activities. The present study used a treatment package consisting of errorless teaching, differential reinforcement, and systematic decision rules to increase the number of words per mand utterance used by 6 children with autism. Daily probes were conducted in the absence of prompting and differential reinforcement throughout every stage of the treatment. Results showed that all children showed significant developmental gains in the mean length of utterances. Increased rates of manding, increased emission of mand frames, and decreased instances of indicating responses (i.e., pointing, reaching) in the absence of mands were also observed. Implications regarding the feasibility of intensive mand training in practice are discussed.

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Correspondence to Sarah E. Frampton.

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The authors have no declared financial conflicts of interest.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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Informed consent was obtained for all individuals in the study.

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The study was conducted at the Marcus Autism Center and Emory University and was supported by a grant from the Marcus Core Pilot Funding Award.

Appendix

Appendix

Table 4 Abbreviated primary, reliability, and procedural fidelity data sheet

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Shillingsburg, M.A., Frampton, S.E., Schenk, Y.A. et al. Evaluation of a Treatment Package to Increase Mean Length of Utterances for Children with Autism. Behav Analysis Practice 13, 659–673 (2020). https://doi.org/10.1007/s40617-020-00417-y

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  • DOI: https://doi.org/10.1007/s40617-020-00417-y

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