McComas, J. J., Wacker, D. P., & Cooper, L. J. (1998). Increasing compliance with medical procedures: Application of the high-probability request procedure to a toddler. Journal of Applied Behavior Analysis, 31, 287-290.

The effects of high-probability (high-p) requests on compliance with low-probability (low-p) responses have received increased attention from applied investigators. This study examined the effects of a high-p procedure on a toddler's compliance with medical procedures. Compliance to low-p requests occurred more frequently following compliance to high-p requests, suggesting that this procedure may be useful across different topographies of compliance.

DESCRIPTORS: high-probability requests, noncompliance, behavioral momentum, stimulus control, behavioral pediatrics