Behavior Analysis in Practice

, Volume 12, Issue 1, pp 199–203 | Cite as

Clinical Application of a High-Probability Sequence to Promote Compliance with Vocal Imitation in a Child with Autism Spectrum Disorder

  • Bethany HansenEmail author
  • Andresa A. DeSouza
  • Ashley L. Stuart
  • M. Alice Shillingsburg
Brief Practice


The current study aimed to evaluate the effects of the high-probability (high-p) instructional procedure involving motor imitation on the levels of compliance with vocal imitation in a 3-year-old boy with autism spectrum disorder (ASD). We used a multiple-baseline design across three stimuli sets to demonstrate effects of the procedure over compliance with vocal imitation responses. Results demonstrated that the high-p procedural sequence was effective in increasing the levels of compliance with vocal imitation. We discuss these finding in terms of the operant mechanisms and clinical applications of increased compliance.


High-p Low-p Motor imitation Vocal imitation Intervention Autism spectrum disorder 


Compliance with Ethical Standards

Conflict of Interest

The authors declare that they have no conflict of interest.

Ethical Approval

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. The current study was a retrospective study and formal consent was not required. This article does not contain any studies with animals performed by any of the authors.

Informed Consent

Informed consent was obtained from all individual participants included in the study.


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Copyright information

© Association for Behavior Analysis International 2018

Authors and Affiliations

  1. 1.Marcus Autism Center and Emory School of MedicineAtlantaUSA
  2. 2.University of Nebraska Medical Center’s Munroe Meyer InstituteOmahaUSA
  3. 3.University of Utah School of MedicineSalt Lake CityUSA
  4. 4.May InstituteRandolphUSA

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