An operant conditioning discrimination paradigm was evaluated of relationships between response behavior of young children and two stimulus components of the paradigm, the discriminative stimulus and the reinforcing stimulus. Findings revealed the effects of schedules of reinforcement, novel reinforcement, and age. (Author/CL)

The application of visual reinforcement audiometry (VRA) -- a testing procedure involving the use of visual stimuli following auditory responses -- was studied with 21 mentally handicapped children (ages 1-6 years). (Author/DLS)