We evaluated a procedure for identifying potential reinforcers with profoundly retarded individuals. In Experiment 1, six persons were repeatedly exposed to 16 stimuli, and approach behaviors to each stimulus were used to identify preferred and nonpreferred stimuli. In Experiment 2, we examined the reinforcing properties of preferred and nonpreferred stimuli by delivering them contingently on the occurrence of arbitrarily selected responses. Results revealed that the preferred stimulus conditions typically produced higher rates of responding than did either the baseline or the nonpreferred stimulus conditions, suggesting that the procedure can be used to assess reinforcer value for individuals with limited behavioral repertoires.

This study evaluated a program to teach and maintain language training interactions between institutional staff and profoundly handicapped children during a routine care task. Following baseline observations of bath sessions, staff were sequentially taught in multiple baseline fashion to vocalize more during the bath, praise child vocalizations, imitate sounds, and provide sound prompts. Procedures included a brief in-service meeting followed by a series of supervisory prompts and feedback. Results indicated that staff acquired the interaction skills in the bath sessions and that the skills generalized to another direct care task, dressing. The number of days on which components of supervision were implemented decreased from 47% of all days during the experimental conditions to 19% of the days during a 19-week maintenance period with no decrease in staff behavior. The interactions were shown not to interfere with the quality of the direct care task nor to increase the amount of time necessary to complete it. Also, some increases were noted for child vocalization frequencies. The advantages of providing therapeutic interactions during care routines are discussed along with the need for staff management techniques with long-term maintenance value.

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Obscene verbalizations of a person with traumatic brain injury were treated using stimulus fading as the singular form of intervention. Results of a functional assessment revealed that obscenity was maintained by negative reinforcement. Stimulus fading (initial elimination of instructional demands followed by their gradual reintroduction) produced immediate and substantial reductions in obscenity that were maintained as the frequency of demands increased to baseline levels. Potential applications of the use of antecedent treatment strategies are discussed.

We evaluated a commonly used component of brief time-out, in which release from time-out is delayed contingent on the occurrence of disruption. Data were collected for one normal and two mentally retarded children on time-out-producing behaviors (aggression and disruption) as well as delay-producing behaviors during time-out (loud vocalizations, out-of-chair, aggression, and disruption). The results of a combination ABAC reversal and multiple-baseline design indicated forcement of positive behaviors; (b) contingent delay, as generally used, requires that clients be retained in TO for minor offenses such as crying and out-of-seat behavior that ordinarily would not result in TO; and (c) contingent delay requires relatively more staff training and supervision to ensure accurate application of the delay.We designed this investigation to evaluate the possible therapeutic effects of contingent delay as a component of TO procedures for the reduction of aggression and disruption. Chair TO procedures both with and without a contingent delay were compared on the basis of their effects on (a) target behaviors that result in TO and (b) behaviors during TO that result in an extension of the TO interval. METHOD Subjects and SettingsThree children with severe behavior disorders who had been admitted to an inpatient pediatric hospital for the developmentally disabled served as participants. Amy, age 3, tested as mildly mentally retarded but had only a 2-3 word vocabulary. Sam was a 4-year-old boy functioning in the low average IQ range with good language skills. Art, age 15, functioned in the severe-profound range 79 1986, 19.) [79][80][81][82][83][84][85][86] NUMBER 1 (SPIUNG 1986)

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This study examined classroom-based instruction in restaurant skills for handicapped persons. Three male students were taught each of four skill components in sequential order: locating, ordering, paying, and eating and exiting. Training was implemented in a multiple baseline design across subjects and consisted of modeling and role playing in conjunction with photo slide sequences and a simulated ordering counter. The use of a menu containing general item classes and a finger matching procedure for identifying errors in the delivery of change greatly reduced the reading and math skills necessary to enter and complete the program. Periodic probes were conducted in a McDonald's restaurant prior to, during, and up to one-year following the termination of training. In addition, two probes (overt and covert observation) were conducted in a Burger King restaurant to assess further generalization to a location different from the one depicted throughout training. Results showed that students' performance on restaurant probes improved as a result of training, generalized to novel settings, maintained over an extended period of time, and was comparable to that of a normative sample of nonretarded persons.