Six four-year-olds were subjects in two experiments on correspondence training procedures with toy play behaviors. The experiments found that presence or absence of children's verbalizations exerted no influence on play with target toys, and that children were less likely to engage in target behaviors when no antecedent experimenter verbalization…

Two experiments, one involving two elementary-aged girls with autism and one involving three boys with serious behavior disorders, found that the use of contingent access to free time and play materials increased the rate of correct math problems completed and decreased the error rates. (Author/JDD)

The out-of-seat behavior of a highly disruptive 4 year old with severe disabilities was substantially reduced using differential reinforcement of incompatible behavior. The boy's in-seat behavior expanded from less than a minute to 20 minutes. The providers' use of physical restraint decreased to near-zero levels, and the boy's appropriate toy…