Behavioral contrast describes an inverse relationship between rates of response in two settings or under two conditions following a change in reinforcement in one of the settingsconditions When the rate of reinforcement for a behavior is decreased in one setting the rate of that behavior may increase in another setting where the reinforcement schedule has not changed and vice versa This phenomenon is most commonly observed with a multiple schedule of reinforcement A multiple schedule consists of two or more independent component schedules of reinforcement presented in an alternating usually random sequence Each component schedule is associated with a distinctive discriminative stimulus SD and only one component schedule is in effect at any given time The client in the question is experiencing different reinforcement contingencies in two distinct environments therapy room vs classroom each likely cued by the environment itself or specific stimuli within it making a multiple schedule the most fitting description for the conditions under which behavioral contrast typically occurs Concurrent schedule involves two or more schedules of reinforcement operating simultaneously and independently allowing the individual a choice between response alternatives While contrast can occur multiple schedules are the more typical context Tandem and Chained schedules are composed of two or more basic schedules presented in a fixed sequence and reinforcement is delivered only after all components have been completed These schedules involve a progression towards a single reinforcer rather than independent schedules in distinct environments leading to behavioral contrast effects across those environments