“…Toward this end, one of the factors necessary for the success of FCT as an intervention lies in the person's ability to request and obtain the stimuli that maintain challenging behavior (Durand, Berotti, & Weiner, 1993). Recruiting natural communities of reinforcement (Craft, Alber, & Heward, 1998;Stokes, Fowler, & Baer, 1978), particularly reinforcement previously obtained through problem behavior, may be a key factor in promoting generalization and maintenance of intervention success. In order to provide students who have severely limited communication skills with the ability to request reinforcers, the present study incorporated the use of vocal output communication devices for use with FCT.…”