Two adults with severe mental retardation were assessed for correct pointing responses to line drawings of required eating utensils. Following tact intervention, mands for two of three utensils emerged. Results suggest transfer from tact variables to the conditioned establishing operation may be facilitated by cultivating a minimal mand…

An adolescent with developmental disabilities who used a wheelchair was anecdotally observed to display little aggressive behavior when being pushed, but higher rates when movement was terminated. A functional analysis confirmed the elevated aggression and the child was taught to request movement through appropriate means. Aggression decreased…

Verbal prompts, modeling, physical guidance, positive reinforcement, fading, and chaining procedures were used to teach two nonverbal individuals (one severely and one moderately mentally retarded) an interactive signing dialogue in a naturalistic setting. Although clients learned to use signed communication, extensive training was required and…