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  • This investigation was supported by Grant R01-MH89607-02 from the National Institute of Mental Health of the National Institutes of Health. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institute of Mental Health or the National Institutes of Health. The authors express their appreciation to the families who participated in this investigation, to the nurses and family support staff at the Child Health Specialty Clinics, and to Agnes DeRaad for her assistance with manuscript preparation.

Address correspondence to David P. Wacker, Center for Disabilities and Development, 100 Hawkins Dr. Room 251, Iowa City, Iowa 52242 (e-mail:


Behavior consultants conducted functional analyses (FAs) via telehealth with 20 young children with autism spectrum disorders between the ages of 29 and 80 months who displayed problem behavior and lived an average of 222 miles from the tertiary hospital that housed the behavior consultants. Participants' parents conducted all procedures during weekly telehealth consultations in regional clinics located an average of 15 miles from the participants' homes. Behavior consultants briefly trained parent assistants to provide on-site support for families during consultations. FAs completed within a multielement design identified environmental variables that maintained problem behavior for 18 of the 20 cases, and interrater agreement averaged over 90%. Results suggested that behavior analysts can conduct FAs effectively and efficiently via telehealth.