A discussion of the basic components and characteristics of contingency contracts is presented. A case study is included in which contingency contracting procedures were integrated within a behavioral consultation model used by a school psychologist consulting with a classroom teacher. An attempt was made by teacher and psychologist to modify the personal hygiene and grooming behaviors of a 12-year-old male. A changing-criterion design was employed to assess treatment effects, and social validation measures were implemented to evaluate the impact of the intervention on significant others in the child's natural environment. Results indicated a marked increase in the number of appropriate hygiene behaviors exhibited daily as well as in the incidence rate of each target behavior. Social validation data revealed noticeable improvements in the subject's personal appearance consistent with the findings reported by the classroom teacher. The present investigation demonstrates the manner in which a behavioral consultation model may be implemented in a school setting. Single-subject designs and social validation procedures offer an effective means for evaluating the efficacy and impact of treatment programs.A contingency contract is a written form of agreement that outlines the contingencies to be applied to behavior by clearly delineating who is to do what for whom under what circumstances (Weathers & Liberman, 1975). A contract provides a framework within which the principles of behavior management may be used to shape or modify behavior.Although there are many considerations that may need to be specified in a contingency contract, Stuart (1971) has suggested five basic components for inclusion. First, the responsibilities (behaviors) of all parties must be specified in clear and definitive terms. Second, the privileges or rewards that each party expects to receive for fulfilling their respective responsibilities are identified. Third, bonuses that provide reinforcement for superior performance and/or compliance to contract are detailed. Fourth, a system of sanctions for failure to meet responsibilities is outlined. Lastly, provisions for a monitoring system must be detailed as a means to determine when responsibilities have been fulfilled and a privilege is due. The monitoring system should specify a time frame for contract implementation, including scheduled progress reviews.Homme (1969) argued that in order to be effective contingency contracts must be formulated systematically and with adherence to principles of behavior. According to Homme, a contract must be fair, honest, and positive, the terms of the contract must be clear, and contracting must be used systematically.
Applications of Contingency ContractingThe theoretical and practical aspects of contingency contracting were initially outlined in work by Homme (1969) and Stuart (1971; Stuart & Lott, 1972). Since that time, contracting has been used as a strategy to change behavior in a wide variety of contexts. Applications of the procedure vary primarily in te...