Analysis of the effects of a short break contingent on completed work with a 10-year-old boy with autism and profound mental retardation found the 20-second break increased responding more than a positive reinforcer did, and the reinforcing effects of a 20-second break were affected by the availability of positive reinforcers during the break. (DB)

Pigeons were trained in three experiments with a two-key, concurrent-chains choice procedure. The initial links were equal variable-interval schedules, and the terminal links were random-time schedules with equal average interreinforcement intervals. Across the three experiments, the pigeons either stayed in a terminal link until a reinforcer was…

Across three experiments, the transformation of consequential functions in accordance with a seven-member relational network (A-B-C-D-E-F-G) was investigated. In this network, the relational rankings ranged from A, ranked the least, to G, ranked the most. In the first phase, contextual cues for more-than and less-than were established by training…

To determine if the deficits in social behavior of retarded persons might be, in part, due to the failure of the environment to maintain that behavior. Inappropriate behavior of 18 institutionalized 12- to 20-year-olds was ignored, and appropriate social behavior was rewarded. (Author/CL)

Eight behavioral management terms/concepts commonly encountered in the special education literature are defined and discussed in terms of commonly occurring confusions. They are positive reinforcement, negative reinforcement, punishment, extinction, differential reinforcement of other behavior, timeout, response cost, and overcorrection. (DB)

One group of undergraduates responded under a fixed-ratio (FR) 25 schedule and a second group responded under a differential-reinforcement-of-low-rate (DRL) 5-s schedule (first history phase). Both groups of subjects were then exposed to a differential-reinforcement-of-other-behavior (DRO) 5-s schedule (second history phase), and finally to…

The objective of the report was to emphasize the importance of classroom contingencies on academic achievement. A study is reported where an introductory psychology class of 253 subjects was divided into four groups. Using a Latin Square design an intraclass analysis of the effects of test frequency (weekly vs monthly) and contingency grading…

Response-cost refers to a procedure whereby a positive reinforcer is lost or some penalty is invoked following a specific misbehavior. In an alternate procedure called Differential Reinforcement of Other Responses (DRO), a reinforcing stimulus is delivered when a particular response is not emitted for a specific interval of time. This study…

A token and social reinforcement system was used with an 8-year-old special education student to increase on-task behavior during reading and mathematics (SBH)

Effects on the academic and disruptive behavior of special education pupils after adding a cost contingency to a token reinforcement procedure were examined. Response rates were higher when response cost was added than during either the baseline or token reinforcement contingency. (Author/MV)

This study reports a successful classroom intervention program which was designed to curb encopresis. It used positive consequences in combination with negative consequences, rather than negative consequences alone. Also it utilized a reversal strategy to evalulate the efficacy of the treatment variables. (Author)

The study compared the relative effectiveness of different procedures (two potentially positive and two potentially negative reinforcing procedures) for decreasing response durations in three severely retarded 14- to 20-year-old women who were severely disruptive and noncompliant. (Author)

Michael (1975) reviewed efforts to classify reinforcing events in terms of whether stimuli are added (positive reinforcement) or removed (negative reinforcement). He concluded that distinctions in these terms are confusing and ambiguous. Of necessity, adding a stimulus requires its previous absence and removing a stimulus its previous presence.…