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Updated: Sep 23, 2026

Modeling Verbal Behavior Deficits with the Stimulus Control Ratio Equation, SCoRE
Published on: May 14, 2019
Functional analysis and treatment of verbal perseverations displayed by an adult with autism
Ruth Anne Rehfeldt1, Mark R Chambers
1Rehabilitation Institute, Rehabilitation Services Program, Southern Illinois University, Carbondale 62901-4609, USA. rehfeldt@siu.edu
Abstract:
The function of perseverative speech for an adult man who had been diagnosed with autism and mental retardation was examined. Results showed that verbal perseverations were maintained by social attention. An intervention consisting of differential reinforcement of appropriate verbal responses and extinction of perseverative verbal responding was effective in decreasing verbal perseverations.
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