The concept of the motivating operation (MO) has been subject to 3 criticisms: (a) the terms and concepts employed do not always overlap with traditional behavior-analytic verbal practices; (b) the dual nature of the MO is unclear; and (c) there is a lack of adequate contact with empirical data. We offer a more parsimonious approach to motivation,…

The delivery of food contingent on 10 s of consecutive toy engagement resulted in a decrease in engagement and a corresponding increase in other responses that had been previously reinforced with food. Similar effects were not observed when tokens exchangeable for the same food were delivered, suggesting that engagement was disrupted by the…

This study evaluated how children who exhibited functionally equivalent problem and appropriate behavior allocate responding to experimentally arranged reinforcer rates. Relative reinforcer rates were arranged on concurrent variable-interval schedules and effects on relative response rates were interpreted using the generalized matching equation.…

This study examined how 3 students (ages 14-18, with emotional or behavioral disorders) allocated their responding across 2 concurrently available tasks associated with unequal rates and equal versus unequal qualities of reinforcement. It found that time allocated to concurrent response alternatives was approximately proportional to obtained…

Behavioral pharmacology is a maturing science that has made significant contributions to the study of drug effects on behavior, especially in the domain of drug-behavior interactions. Less appreciated is that research in behavioral pharmacology can have, and has had, implications for the experimental analysis of behavior, especially its…

We manipulated two parameters of response blocking to reduce pica: (a) the criteria for initiating the procedure (either earlier or later in the response chain) and (b) the distance from which the procedure was initiated. Results suggested that response blocking may be effective only when implemented early in the chain and with near-perfect…

Sixteen studies were analyzed that employed single-subject designs focusing on conduct disorders in preschoolers. Results indicated that reinforcement produced most positive outcomes, followed by punishment, timeout, and differential attention. Subject characteristics such as sex, handicapping condition, and target behavior typically bore little…

Basic and applied research on variables that influence the extinction of operant behaviors is reviewed and applied to the treatment of behavior disorders. The potential value of a general technology for the use of behavioral extinction is discussed. The paper concludes that current research findings are not sufficient for the development of a…

This study investigated the relationship between self-restraint (e.g., entanglement of limbs in clothing or furniture) and self-injurious behavior (SIB) using functional analysis with five males with severe mental retardation. Results suggested that self-restraint, like SIB, may be maintained by idiosyncratic contingencies. (Author/DB)

Following an initial school inservice workshop on functional assessment and differential reinforcement procedures with five children having severe behavior problems, on-site technical assistance was provided to local school personnel working in transdisciplinary teams. Functional analysis was effective in identifying individual maintaining…

This study evaluated self-control and impulsivity in two nine-year- old males with severe developmental disabilities and behavior disorders. Functional analyses suggested that aggression was reinforced by food access. A differential reinforcement procedure to reinforce appropriate mands was implemented. Although aggression occurred when it…

The study examined the extent to which momentary DRO (differential reinforcement of other behavior) maintained suppression (following initial treatment with whole-interval DRO) of the maladaptive behavior of nine severely multihandicapped elementary aged students. Results indicated that momentary DRO maintained response suppression comparable to…