TOKEN REINFORCEMENT DURING THE INSTATEMENT AND SHAPING OF FLUENCY IN THE TREATMENT OF STUTTERING

The value of token reinforcement in the instatement and shaping of fluency was examined in an intensive treatment program for adult stutterers. Experiment 1 examined the effect of removing the tangible back-up reinforcers for the token system and found that clients' performance in the program was equally good with or without these back-up reinforcers, suggesting that a strict token economy may not be crucial to rapid progress through treatment. Experiment 2 compared contingent and noncontingent token reinforcement, while controlling for some variables that may have confounded the results of earlier research, and found no difference in clients' performance. Experiment 3 examined the effect of the entire removal of token reinforcement. Performance was found to be no worse under a “no tokens” system than under a system of tokens with back-up reinforcers. It is argued that in a highly structured treatment program where many other reinforcers are operating, token reinforcement may be largely redundant. Clinical and theoretical implications of the findings are discussed.     

EFFECTS AND SIDE EFFECTS OF DRO AS TREATMENT FOR SELF-INJURIOUS BEHAVIOR

A three-part controlled case study is presented in which severe and longstanding self-injurious behavior exhibited by a 9-year-old-boy was treated successfully with differential reinforcement of other behavior. In Phase 1, an experimental analysis demonstrated that the boy's scratching was not maintained by environmental contingencies; instead, it appeared that the self-injurious behavior was a stereotypic (automatically reinforced) response. In Phase 2, the effects of an escalating differential-reinforcement-of-other-behavior schedule mediated through token reinforcement (pennies) were evaluated in a reversal design. Results showed that differential-reinforcement-of-other-behavior eliminated self-injurious behavior very quickly and for periods of time as long as 30 min. A noteworthy side effect observed during Phase 2 was the occurrence of crying behavior following the nondelivery of reinforcement. In Phase 3, the token program was gradually extended in 30-min increments throughout the day. Additionally, results of a brief multielement manipulation showed that the effects of token reinforcement were superior to those of a more easily administered differential reinforcement of other behavior based on social reinforcement, which differed little from baseline.     

THE EFFECTS OF RESPONSE INTERRUPTION AND REDIRECTION (RIRD) AND DIFFERENTIAL REINFORCEMENT ON VOCAL STEREOTYPY AND APPROPRIATE VOCALIZATIONS

The relation between contextually appropriate vocalizations (AV) and vocal stereotypy (VS) has yet to be established within the response interruption and redirection (RIRD) literature. RIRD may promote AV by suppressing VS and/or by functioning as incompatible responses. The occurrence of VS and AV was assessed during baseline, RIRD alone, and RIRD combined with a differential reinforcement system for AV (RIRD + DRI) for a 5‐year‐old child with autism. Results showed an increase in AV once RIRD was implemented and further increases in AV and decreases in stereotypy when the token system of reinforcement for AV was implemented. Copyright © 2012 John Wiley & Sons, Ltd.     

SOCIOMETRIC AND DISRUPTIVE BEHAVIOR AS A FUNCTION OF FOUR TYPES OF TOKEN REINFORCEMENT PROGRAMS1

Children in a first-grade classroom were divided into four groups. Baseline measures of disruptive classroom behavior were taken on a well-behaved and disruptive child in each group. Following baseline, four types of token economies were simultaneously introduced and rotated every 10 days within a Latin Square design. The token economies were: (1) individual reinforcement determined by individual performance; (2) group reinforcement determined by the behavior of the most disruptive child; (3) group reinforcement determined by the behavior of the least disruptive child; (4) group reinforcement determined by the behavior of a randomly chosen child. The token economies were compared on their effectiveness in changing target behavior, preference by the targets, ease of use, and cost. Additionally, sociometric responses were taken on questions of responsibility, friendship, and funniness. Results showed a significant decrease of inappropriate behavior for the disruptive children and no difference between the effectiveness of the four types of token economies in producing behavior change. However, there were other differences that indicated that the system in which group reinforcement was determined by a randomly selected child would be desirable for most teachers. Results also showed changes in the sociometric status of the disruptive children. As predicted, disruptive children were rated as more responsible when they were in the group reinforcement determined by the most disruptive child in the group token economy. Using behavior modification techniques indirectly to change sociometric status is suggested as offering a new potential technique for behavior change agents.     

POSITIVE PEER PRESSURE: THE EFFECTS OF PEER MONITORING ON CHILDREN'S DISRUPTIVE BEHAVIOR

Classroom peers can serve as powerful sources of reinforcement in increasing or maintaining both the positive and negative behaviors of their classmates. In two experiments, we examined the effectiveness of a peer-monitored token system on reducing disruption and nonparticipation during a transition period of a kindergarten class for behaviorally impaired children. Additionally, the effect of providing and subsequently withholding corrective feedback to peer mediators on the accuracy of their point awards was evaluated. Results in Experiment 1 suggest that both teacher-and peer-monitored interventions were successful in decreasing disruption and increasing participation of monitored peers. Experiment 2 further demonstrated that peer monitors could successfully initiate the token system without prior adult implementation. Analysis of the point awards in both experiments indicates that peer monitors consistently awarded points that were earned. However, when corrective feedback was withdrawn the peer monitors frequently awarded points that were not earned, i.e., they rarely withheld points for undesirable behavior. Even so, the monitored peers' disruptive behavior was maintained at low rates.     

THE EFFECTIVENESS OF REINFORCEMENT,RESPONSE COST,AND MIXED PROGRAMS ON CLASSROOM BEHAVIORS1

Six elementary school children served as subjects in an experiment comparing the relative effectiveness of (1) token reinforcement, in which children received tokens for attending and for correct arithmetic performance; (2) response cost, in which children received “free” tokens at the start of a period but lost them for inattention and for arithmetic performance below a specified level; and (3) a combination of both token reinforcement and response cost. During training, the six subjects received all three procedures in counterbalanced sequence. The effects of the three procedures were assessed by a within-subject comparison divided into three phases: (i) baseline, (ii) training, (iii) withdrawal of tokens. Introduction of the three token procedures markedly increased the two dependent measures. However, there were no differences across the procedures in the amount of change produced in either attending behavior or arithmetic performance. During baseline, the subjects averaged 29% attending behavior and 6.4 correct problems. These levels increased to 85% for attending behavior and 11.4 correct problems for arithmetic performance during training. Removal of all token procedures significantly decreased attending behavior (to an average of 65%), but produced a nonsignificant reduction in arithmetic performance (to an average of 7.6 correct problems). There was evidence that this lack of differential effects of the three token procedures was not due to an inability to discriminate among them. Furthermore, the subjects were evenly divided in their preference for the three procedures.     

TOKEN REINFORCEMENT: A REVIEW AND ANALYSIS

Token reinforcement procedures and concepts are reviewed and discussed in relation to general principles of behavior. The paper is divided into four main parts. Part I reviews and discusses previous research on token systems in relation to common behavioral functions—reinforcement, temporal organization, antecedent stimulus functions, and aversive control—emphasizing both the continuities with other contingencies and the distinctive features of token systems. Part II describes the role of token procedures in the symmetrical law of effect, the view that reinforcers (gains) and punishers (losses) can be measured in conceptually analogous terms. Part III considers the utility of token reinforcement procedures in cross‐species analysis of behavior more generally, showing how token procedures can be used to bridge the methodological gulf separating research with humans from that with other animals. Part IV discusses the relevance of token systems to the field of behavioral economics. Token systems have the potential to significantly advance research and theory in behavioral economics, permitting both a more refined analysis of the costs and benefits underlying standard economic models, and a common currency more akin to human monetary systems. Some implications for applied research and for broader theoretical integration across disciplines will also be considered.     

Reduction of epileptic seizures by reinforcement of bladder continence.

Epileptic seizures and resulting incontinence of urine were effectively reduced by reinforcement of incompatible behaviour with individual programming within a general token economy system. Two treatment phases, including token and social reinforcement, during an 11 week period resulted in significant seizure reduction. Therapeutic gains were maintained in a 6 month follow-up.     

Case study: Improving the social interactions of a group home resident with severe and multiple disabilities

A 43-year-old man with severe mental retardation and sensory impairments and a long history of behavior problems was taught to interact more appropriately with staff members at his community-based group home. The following behaviors were targeted for change within a multiple baseline design: use of an appropriate cueing response to initiate a conversation; keeping his hands to himself when conversing with another; and not ‘badgering’ people by repeating the same question over and over. Instructions and feedback produced small, unstable improvements in the subject's behavior. When token reinforcement was added to the treatment package, large and immediate improvements were noted. The improved levels of social interactions were maintained after token reinforcement was withdrawn, suggesting the operation of naturally occurring contingencies of reinforcement.     

ESTABLISHMENT OF NONDELUSIONAL RESPONSES IN A SOCIALLY WITHDRAWN CHRONIC SCHIZOPHRENIC1

Multiple treatment interventions including instructions, modelling, timeout, avoidance of repetition, and reinforcement were successful in establishing factual answers to personal background questions in a withdrawn and socially unresponsive chronic schizophrenic. The subject had previously persisted in giving only delusional responses to these questions. A multiple-baseline design across verbal replies to personal background questions demonstrated that the changes in behavior were brought about by the treatment interventions. During baseline, the subject was reinforced for any response to four questions. The experimental interventions were then introduced for the first question and moved sequentially to an additional question when the subject's responses reached the criterion of at least 80% correct for two consecutive sessions. Introduction of the experimental interventions produced an increase from a baseline level of zero to at least 80% correct for each question. The use of the token reinforcement procedure was faded out after the subject was able to answer all four questions correctly at least 80% of the time for two consecutive sessions. Fading of the token reinforcement procedure was accomplished by using increasingly intermittent schedules of token reinforcement during the last seven sessions. In the final session, no tokens were used to reinforce the subject's responding. Nine-, ten-, and 12-month followup interviews were conducted to evaluate the maintenance of treatment gains. Maintenance was found to be complete at the nine- and 10-month followups, but at the 12-month followup interview, the subject answered one question incorrectly. This study replicates an investigation previously reported in this journal.     

Maintaining patients' improvements in a token economy.

Eighteen long stay male patients (diagnosis chronic schizophrenia) were involved in a six month token economy prior to random assignment to one of three experimental groups to investigate the importance of social reinforcement and other token-related variables in maintaining improvements brought about by the token system. Assessment included standardised psychiatric rating scales, nurse rating scales, and behavioural measures. Analysis of variance suggests the full token economy system produced significant improvements, but that the social factors involved in token exchanges were not demonstrably important sources of reinforcement. and that none of the variables studies at the experimental phase were critical factors. Once patients returned to a complete token system, results indicate that this may have more value in the promotion of work activities rather than social responding. It is argued that the token system provides a necessary clear structure within which nurses can encourage continuous improvements with long stay patients.     

Classroom applications of self-determined reinforcement

Self-determined, experimenter-determined, and chance-determined token reinforcement treatments were compared with a no-token treatment, in terms of effect on the learning of history and geography material in the classroom. Each treatment was assigned to one of four heterogeneous classes of Grade nine girls. An initial baseline period preceded the differential reinforcement period, and a token withdrawal period followed. Subsequently, the self-determined treatment was employed in all three token reinforcement classes, before a final baseline period occurred. Findings included a similarity of initial baseline performance for all classes, an equal superiority of self-determined and experimenter-determined treatments to chance-determined and no-token treatments, and significant improvement from initial baseline to final baseline for self-determined and experimenter-determined treatments, but not chance-determined and no-token treatments. Differential token reinforcement experience was found to influence subsequent rate of self-determined token reinforcement.     

TEACHER POPULARITY AND CONTRAST EFFECTS IN A CLASSROOM TOKEN ECONOMY

There is a common fear that the use of a token economy in one classroom might harm pupil performance in situations where the contingencies are not in effect. This study investigated potential contrast effects on measures of children's productivity and attitudes toward teachers. Six children with reading deficits participated. A multiple baseline design was used to assess the effects of a token economy which was systematically introduced across three teachers. Dependent measures included two rating forms of teacher popularity and work rate on a programmed reading series. The results indicated that the token system was effective in increasing the children's productivity and that no consistent behavioral contrast effects occurred. Furthermore, children's attitudes toward teachers did not appear to be influenced by the token economy until only one teacher was not delivering tokens. At this point, her popularity declined until she also delivered tokens. The token economy manipulation appeared to have a specific, desirable effect on the targeted behavior (i.e., work rate) and had minimal negative or positive “side effects” on teacher popularity.     

INCREASING HANDICAPPED PRESCHOOLERS' PEER SOCIAL INTERACTIONS: CROSS-SETTING AND COMPONENT ANALYSIS

The purposes of our study were: (a) to train a set of observationally determined social behaviors via peer initiation; (b) to determine if effects generalized across classroom settings and to directly intervene if generalization did not occur; and (c) to analyze components of the peer-initiation intervention. After baseline, nonhandicapped preschool children (confederates) were taught to direct social initiations to the three handicapped preschool-aged students. Teachers prompted the confederates to engage the students in social interaction when necessary and rewarded the confederates with tokens. Confederates' initiations to the students resulted in increased frequencies of positive social interaction. There was no generalization to other classroom settings, and the intervention was subsequently implemented in a second and third classroom. Next, the confederates' token reinforcement system was withdrawn, with no apparent deleterious effects on the confederates' or students' social interactions. When teachers substantially reduced their prompts to the confederates, students' social interactions decreased. Finally, reinstatement of teacher prompts resulted in increases in the confederates' social initiations and, consequently, the positive social interactions of the students.     

COLLATERAL GAINS AND SHORT-TERM MAINTENANCE IN READING AND ON-TASK RESPONSES BY INNER-CITY ADOLESCENTS AS A FUNCTION OF THEIR USE OF SOCIAL REINFORCEMENT WHILE TUTORING

Two experiments are reported concerning the effects of the differential use of verbal approval by problematic adolescents serving as tutors in a remedial reading program for an inner-city school. The experiments, each with 3 tutors and 15 tutees, used a combined multiple baseline and ABCBC design. Data showed that tutors' approvals as well as tutors' and tutees' on-task and reading responses were low and stable during baseline. Tutors were trained to use verbal approval for tutees' on-task behavior. Tokens were presented and withdrawn to control the tutors' use of approval. During phases in which tutors' approvals were raised via token dispensation, tutor reading and on-task scores increased in a nonexperimental setting. Tutee reading scores also increased as a function of tutor approvals. The second experiment replicated these findings and, in addition, (a) tested the validity of changes in reading responses via standardized tests, (b) isolated and compared the covariance between variables in all phases, and (c) provided data on tutee attention to tutors as a possible natural reinforcer for the short-term maintenance found in both studies. Data are discussed as evidence that tutors had acquired the ability to recruit reinforcement from the classroom for appropriate behavior.     

IMPROVING BEHAVIOR IN A RESIDENTIAL SERVICE FOR YOUTH IN DRUG AND ALCOHOL REHABILITATION

A token reinforcement program, named ‘Thumbs Up’, was introduced in a residential therapeutic community for drug and alcohol rehabilitation. Sixteen young people aged 14–17 years participated for varying durations. Participants were able to negotiate target behaviors and choose backup reinforcers. We evaluated the program within a multiple baseline design across participants, settings, and behaviors. Improvements occurred in positive verbal statements across settings, timely room cleaning, and leadership responsibilities. Inappropriate statements were also measured and did not change. One staff member was trained in the use of Thumbs Up with positive results. Difficulties with implementing behavioral interventions in a non‐behaviorally oriented treatment service were identified. Despite needing refinements, it was concluded that a token reinforcement program can be an effective and acceptable means of improving behavior within a therapeutic community framework. Copyright © 2012 John Wiley & Sons, Ltd.     

A TOKEN REINFORCEMENT PROGRAM IN A PUBLIC JUNIOR-HIGH SCHOOL1

In recent years, the technology of contingency management has been shown to be of increasing value in regular classrooms and public-school systems with both groups and individual pupils (Ayllon and Roberts, Journal of Applied Behavior Analysis, 1974, 7 , 71–76; Glynn and Thomas, Journal of Applied Behavior Analysis, 1974, 7 , 299–306; Lovitt and Curtiss, Journal of Applied Behavior Analysis, 1969, 2 , 49–53; Lovitt and Smith, Exceptional Children, 1974, 40 , 357–358; Medland and Stachnik, Journal of Applied Behavior Analysis, 1972, 5 , 45–51). In addition, established procedures are being systematically replicated across grade levels and differing subject-matter areas. A series of studies initiated by O'Leary and Becker (Exceptional Children, 1967, 33 , 637–642) form the basis for the present investigation. The token reinforcement program described by O'Leary and Becker (Exceptional Children, 1967, 33 , 637–642) was managed by the teacher of an adjustment class and involved 9-yr-old children described as emotionally disturbed. An elaborate replication of the 1967 O'Leary and Becker study conducted by O'Leary, Becker, Evans, and Saudargas (Journal of Applied Behavior Analysis, 1969, 2 , 3–31) with a grade-two class introduced several variables to examine their separate effects. The authors specified their treatment levels as baseline, classroom rules, educational structure, teacher praise and ignore, token I, withdrawal, token II, and follow-up. The present research modified the general design of O'Leary et al., (Journal of Applied Behavior Analysis, 1969, 2 , 3–31) to study how to maintain treatment effects. In the modification, rules were eliminated as a treatment variable because they are frequently associated with aversive practices in the school system, and it was deemed desirable to have mainly a positive orientation. A second difference was that the present subjects were grade-nine pupils functioning in the regular public-school system. The six students were older (average age = 16.2) and well behind their peers in achievement. They were considered behavior problems and as potential dropouts by teachers and counsellors. They were not considered to be emotionally disturbed. Finally, procedures designed to maintain behavior change generated by the token system were added. The operant level of unacceptable classroom behavior was obtained for six students receiving an individualized program of instruction in mathematics and science in a nonacademic grade-nine class in a public junior secondary school. Initially, two conditions (educational structure and praising appropriate behavior while ignoring inappropriate behavior) were introduced successively. Both procedures reduced inappropriate behavior slightly. When a token system, using backup reinforcers readily available in the school, was introduced in conjunction with the initial two conditions, inappropriate responses declined dramatically in all subjects. Withdrawal of the token program for a three-week period, leaving educational structure and praising and ignoring in effect, increased inappropriate behavior in five of the six subjects. The token program was then re-introduced in conjunction with contingency contracts. The result was a decline of inappropriate behavior below the mean of the first token condition for all subjects. Tokens were thinned and finally removed toward the end of this condition, leaving teacher praise and attention and the contract system in effect. Data obtained during a four-week followup indicated that the low level of inappropriate behavior was maintained in all subjects. This extension of the O'Leary et al., (Journal of Applied Behavior Analysis, 1969, 2 , 3–31) program, designed and implemented by the regular teacher, demonstrates that these procedures may be highly effective within the constraints found in an ordinary classroom in the junior secondary school.     

The effect of token reinforcement on McCarthy Scale performance for white preschoolers of low and high social position

In Study 1, the effect of making tokens contingent on correct performance of low social position preschoolers on the McCarthy Scales of Children's Abilitieswas examined. Preschoolers in a token reinforcement group scored significantly higher (mean=8 IQ points) than subjects in a control group. In Study 2, the effect of tokens on McCarthyresults was examined as a function of social position in a 2×2 design. The high social position control group scored significantly above the low social position control. The low social position token reinforcement group, however, performed as well as both the high social position control and token reinforcement groups. Use of systematic reinforcement contingencies to reduce test error is discussed.     

THE EFFECT OF A TOKEN ECONOMY ON DIETARY COMPLIANCE FOR CHILDREN ON HEMODIALYSIS

Adherence to dietary restrictions is a recurring problem for children on hemodialysis. The effect of behavior modification in maintaining dietary control is reported for four patients aged 11 to 18 years. Weight gain, potassium level, and blood urea nitrogen were utilized as criteria measures. A token reinforcement program implemented by the hemodialysis team resulted in significant changes in the dietary pattern of the children. The average weight gain between dialysis sessions for the four subjects during treatment was reduced by 45% and the degree of weight fluctuation was lessened. Potassium levels and BUN were controlled to their appropriate level for subjects who initially exceeded the criterion level. With the withdrawal of weight gain from the contingency system, increase of weight gain between dialysis sessions was noted for all subjects.     

Effects of a token reinforcement system on journal reshelving

A token reinforcement program involving two levels of token value and backup reinforcers to increase journal reshelving behavior in a large university library was experimentally evaluated. Results showed that instructions (in which signs asked users to reshelve journals) had no impact. By contrast, token reinforcement contingent on reshelving behavior led to a marked increase in journals reshelved. A return to instructions-only conditions, when data were corrected for library usage, showed an increase in unreshelved journals over the token reinforcement period, though the increase was not to baseline levels. For the next 11 months, library staff maintained a modified token program. Follow-up data collected after that interval showed that number of unreshelved journals remained markedly lower than levels at baseline and the first instructions-only period, though they were slightly higher than at the token reinforcement period. Token reinforcement of the variety employed in this study constitutes an efficient, economical means of changing the behavior of library users who fail to reshelve books and journals.