This brief practice is an evaluation of work output predicted by Timberlake’s (1980) disequilibrium model. Jacobs, Morford, King, and Hayes (2017) provided a downloadable, online tool using the disequilibrium model to assist practitioners in maximizing intervention outcomes. The disequilibrium model was used to predict the duration of independent seatwork for Marvin, a 17-year-old boy diagnosed with autism spectrum disorder. The disequilibrium model effectively predicted a work duration that Marvin was compliant with throughout the study. Practitioners should consider using the disequilibrium tool to select intervention parameters.
Disequilibrium model Contingent activity Compliance Response deprivation Autism
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Compliance with Ethical Standards
Conflict of Interest
Art Dowdy declares he has no conflict of interest. Kenneth Jacobs declares he has no conflict of interest.
All procedures performed in the study 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.
Informed consent was obtained from all individual participants included in the study.