The development of a reinforcement survey hierarchy is described for programming severely and profoundly retarded individuals. The survey identifies reinforcement preferences of severely and profoundly retarded individuals by means of indirect categorical technique. The categorical technique views reinforcement as being educationally, environmentally, and developmentally characteristic of severely and profoundly retarded individuals. The survey is a preliminary step to more direct approaches to reinforcement, such a sampling or use of multiple reinforcements. Field data are discussed.
Available at: http://works.bepress.com/robert_fox/123/