Reducing Sibling Fighting Using a Four Step Desensitization and Team Working Intervention in Preteens: A Case Study

Abstract

Douglas H. Ruben

Sibling conflict is a common fam.ily concern that can escalate into aggression and disrupt home routines. Studies examining methods of preteen and teen sibling conflict resolution using applied behavior analysis have been extensive but limited. Interventions effectively implement at-the-moment problem solving modalities and spotlight the role of mediator/facilitator as contingency manager. But once the contingency manager’s role fades or self-managed skill applications weaken, fighting rates returns to baseline levels. This case study evaluated the effects of a four step desensitization and team working intervention on daily fighting incidents between two siblings (ages 7 and 9). Multi-causal factors also considered included parental responses, and confounding contingencies in other (generalized) settings. A component of anxiety-avoidance training taught independent sibling conflict resolution without using the parent mediator. Using an ABAB reversal design, parents recorded the number of f ighting episodes per day across baseline, intervention, withdrawal, and reintroduction phases. During intervention phases, the family implemented a structured desensitization sequence consisting of controlled exposure, guided interaction, cooperative team tasks, and generalization to natural routines. Generalization probes across five days in different (high-fight risk) settings offered promising empirical support. Results showed a clear reduction in fighting during intervention phases and a return to higher levels during withdrawal. Implications suggest the functionality of anxiety-avoidance in sibling conflict management within a multicausal framework.  Implications discuss further study of multicausal analyses in ABA child behavior research.

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