Programming a randomized dependent group contingency and common stimuli to promote durable behavior change

Differential Reinforcement of Low Frequency Behavior as an Interdependent Group Contingency for Children Diagnosed with Autism Spectrum Disorder

An ABAB reversal design was employed to evaluate the effect of differential reinforcement of low (DRL) frequency behavior as an interdependent group contingency on the frequency of vocal disruptions of five males, 6-14-years old, diagnosed with an autism spectrum disorder. The results showed lower frequencies of vocal disruptions during intervention conditions as compared to baseline conditions; the combination of DRL and interdependent group contingency was effective at reducing the target behavior from baseline levels. Implications of concurrent interventions for the applied setting are discussed.

Effect of Group Contingency Type on Walking: Comparisons of Effectiveness and Cost Efficiency

Group contingency (GC) is an effective and cost-efficient strategy that can be successfully applied to technology-based interventions. This study examined the relative effectiveness and cost efficiency of three types of technology-based group contingencies on walking among adults. Seventy two students were divided into teams of three. Each team was randomly assigned to one of three GC conditions (independent, interdependent, or dependent) and underwent 66 days of technology-based group contingency intervention. Sixty five participants completed the intervention and 61 completed the follow-up assessment 2 months later. Step counts and self-reported walking activity increased after the intervention under all three conditions. The proportion of participants that met the target step counts was significantly higher under the dependent group contingency condition. However, 2 months later, intervention effects were not maintained under any condition. For cost efficiency, the increase in step count per point was significantly higher under the interdependent group contingency condition. Group cohesion and social validity (point satisfaction and point utility) were significantly higher under the dependent group contingency condition. Finally, the clinical implications and limitations of this study are discussed.

Independent Contingency and Token Economy at Recess to Reduce Aggression

School-wide behavior problems can vary significantly from structured to unstructured settings. Often problem behaviors can spike during unstructured times such as lunch and recess and the use of Tier 1 positive behavior interventions and supports (PBIS) can be used to reduce student behavior problems in these settings. Using a token economy as an independent group contingency, this study aimed to reduce student aggression in an elementary school during lunch/recess periods of the day. Students had the opportunity to earn school “dollars” during recess for demonstrating prosocial behaviors in which they were told could be exchanged for incentives at a student store (backup reinforcers). Across all grade levels, student levels of aggression were reduced between 50 and 100% from baseline levels in a 3-month period. However, as effect sizes indicated, only some intervention groups showed significant reduction of aggression. Despite the limitation of access to backup reinforcers, we theorized that the effectiveness of the present intervention was due to socially mediated contingencies among student group members as a result of receiving dollars.

Interpersonal and Group Contingencies

Responding by individuals in groups has been a prominent interest of the field of psychology. Experimental analyses of human behavior have provided some unique findings of the role that the environment, including both social and nonsocial stimuli, may have on individual responding. Cooperative and competitive contingencies, previously evaluated in animal and human operant research, provide unique insight into applied interventions, in particular group contingencies. The current manuscript attempts to bridge these two literatures to foster the development of more effective technologies and lines of experimental or translational research that may better inform interventions in the applied realm.

Translating Behavior Analysis: a Spectrum Rather than a Road Map

Much has been written about the potential benefits of translational research in behavior analysis, but a lack of consensus about what constitutes "translational" creates a barrier to effective knowledge-practice innovation within the discipline and across other sciences. We propose a tiered system, adapted from a biomedical translational pathway, for classifying behavior analysis research on a basic-applied spectrum. Tier 0 is blue sky basic science in which the subjects, behaviors, stimuli, and settings are selected for convenience. Tier 1 is use-inspired basic science with a socially important end game and research subject. Tier 2 is solution-oriented research that attempts to solve a specific problem in a socially important subject, but 1 or more aspects of the research are selected for purposes of experimental control rather than social importance. Tier 3 is applied behavior analysis research that studies a problem of social significance for the subject and involves behaviors, stimuli, and settings that are socially important. Tier 4 is impact assessment in which behavioral technology is applied with a direct benefit to society. We provide examples of behavior-analytic research in each tier and evaluate the potential benefits of organizing behavior analysis in this way.

A comparison of group contingencies on academic compliance

We used a reversal design with an embedded multielement design to compare the effects of an independent group contingency and a randomized dependent group contingency on compliance with assigned literacy worksheets in a first-grade general education classroom. Nine participants were selected based on low levels of compliance in baseline or by teacher identification. Results indicated that both group contingencies increased compliance relative to baseline for the majority of participants. The independent condition produced higher levels of compliance for four students and the randomized dependent condition produced higher levels of compliance for one student. For four students, the two group contingencies were equally effective. A preference assessment indicated that the majority of target students preferred the randomized dependent condition and the majority of nontarget students preferred the independent condition. A number of potential explanations for our preference findings, including the possible role of obtained reinforcement, are discussed.