In the field of operant conditioning and applied behavior analysis, secondary motivational systems require a foundational anchor to maintain their potency over time. The backup reinforcer serves as this fundamental behavioral bedrock, imbuing neutral conditioned stimuli with the functional capacity to alter human and animal behavior across educational, clinical, and organizational settings.
Backup Reinforcer
1. Concise Definition
A backup reinforcer is any primary or established secondary reinforcer—such as a preferred tangible object, consumable item, pleasurable activity, or special privilege—that an individual can obtain by exchanging generalized conditioned reinforcers, most notably tokens, chips, points, or tallies. In an operant conditioning system, the backup reinforcer supplies the direct motivational value that supports and sustains the entire exchange framework.
Without accessible and genuinely motivating backup reinforcers, the intermediate tokens exchanged within a behavioral system lose their acquired reinforcing qualities through experimental extinction. The backup reinforcer functions as the tangible outcome of a behavioral contract, transforming symbolic accumulation into biological, sensory, or social gratification.
By tethering symbolic tokens to a wide and dynamic menu of backup reinforcers, behavioral interventionists prevent reinforcer satiation and ensure that conditioned stimuli retain robust reinforcing effectiveness across varying biological drive states and motivating operations.
2. Etymology & Linguistic Origin
The term backup reinforcer represents a functional compound rooted in mid-twentieth-century behavioral science. The word backup originated in late nineteenth-century American English as a mechanical and organizational noun derived from the verb phrase "to back up," signifying structural support, reserve assistance, or an auxiliary resource held in reserve to ensure continuous functioning.
The constituent term reinforcer derives from the verb reinforce, originating from the Middle English reinforcen and the Old French reinforcer, which in turn trace back to the Latin prefix re- (meaning "again" or "intensively") combined with infortiare (meaning "to strengthen," derived from fortis, "strong"). B. F. Skinner formalized the technical psychological use of reinforcement and reinforcer in the 1930s to describe events or stimuli that increase the future probability of the response they follow.
The synthesized technical term gained widespread prominence through the pioneering clinical research of Teodoro Ayllon and Nathan Azrin in the mid-1960s. In their foundational work developing psychiatric token economies, Ayllon and Azrin formalized the "backup reinforcer" to denote those primary and preferred commodities stored "in back of" the tokens, guaranteeing the functional currency of the ward's token economy.
3. Pronunciation & Grammatical Form
The standard International Phonetic Alphabet (IPA) transcription for the term is as follows:
- Received Pronunciation (British English): /ˈbæk.ʌp ˌriː.ɪnˈfɔː.sər/
- General American English: /ˈbæk.ʌp ˌriː.ɪnˈfɔːr.sɚ/
Grammatically, "backup reinforcer" functions as a countable compound noun phrase. Its plural form is "backup reinforcers." In technical writing, "backup" is occasionally hyphenated ("back-up reinforcer") when serving as a compound prenominal modifier, though standard behavior analytic literature favors the closed compound "backup reinforcer."
The term can function as a grammatical subject or direct object within clinical formulations (e.g., "The clinician identified high-preference edibles to serve as backup reinforcers"). It may also appear in possessive constructions outlining systemic design (e.g., "The backup reinforcer's exchange rate was adjusted to prevent satiation").
4. Detailed Conceptual Explanation
To grasp the conceptual scope of a backup reinforcer, one must examine the operational architecture of operant conditioning. In classical Skinnerian behaviorism, stimuli in the environment are categorized based on how they acquire their reinforcing properties. Primary or unconditioned reinforcers possess inherent biological utility; they require no prior learning history to function effectively and encompass necessities such as food, water, warmth, and physical relief. Conditioned reinforcers, by contrast, begin as neutral stimuli that acquire their capacity to strengthen behavior solely through systematic pairings with established reinforcers.
When a conditioned reinforcer can be paired with or exchanged for multiple distinct reinforcers, it becomes classified as a generalized conditioned reinforcer. Tokens, tallies, paper currency, and praise are classic illustrations. The items, activities, or states for which these generalized tokens are ultimately traded are designated technically as the backup reinforcers. In this structural dynamic, the backup reinforcer provides the actual functional value, while the token serves as an arbitrary, portable placeholder that bridges the temporal delay between target behavior emission and ultimate reinforcer consumption.
A critical behavioral phenomenon governing this relationship is the Motivating Operation (MO), specifically Establishing Operations (EO) and Abolishing Operations (AO). An establishing operation temporarily elevates the reinforcing effectiveness of a specific stimulus and increases the frequency of behaviors that have previously produced that stimulus. If a token economy relies upon a single backup reinforcer—for instance, chocolate candies—an individual who has recently consumed a large meal experiences an abolishing operation that dramatically reduces the reinforcing value of chocolate. Consequently, the tokens that purchase chocolate immediately forfeit their functional reinforcing capacity.
To solve this fundamental systemic vulnerability, applied behavior analysts construct an expansive "menu" of backup reinforcers. By offering an array of consumable, physical, relational, and activity-based backup reinforcers, the token economy remains immune to individual satiation. At any given moment, an individual will typically experience an establishing operation for at least one commodity on the backup menu, thereby preserving the unbroken value of the token currency across time and diverse environments.
Furthermore, backup reinforcers permit the introduction of complex behavioral schedules and delayed gratification paradigms. In natural human development, the temporal gap between an effortful response and its ultimate natural reinforcement can span hours, days, or even decades. Backup reinforcers, when coordinated through conditioned token systems, allow clinicians to provide immediate feedback for complex prosocial behavior while systematically expanding the temporal delay to the backup exchange, fostering essential self-regulatory and executive functioning skills.
5. Historical Development
The empirical foundation of the backup reinforcer dates back to early comparative psychology laboratories of the 1930s. Long before applied behavior analysis emerged as a distinct discipline, experimental psychologists examined how non-human animals could learn symbolic representation and delayed exchange.
In 1936, comparative psychologist John B. Wolfe published his groundbreaking monograph on token learning in chimpanzees. Wolfe demonstrated that chimpanzees could be trained to insert brass discs or poker chips into an automated apparatus called the "Chimpomat" to receive grapes or bananas. In this experiment, the fruit functioned as the backup reinforcer, while the tokens served as conditioned exchange media. Wolfe observed that the chimps would perform laborious physical work to amass tokens only as long as the apparatus reliably dispensed the fruit backup reinforcers. Shortly thereafter, in 1937, John T. Cowles expanded Wolfe's methodology, demonstrating that chimpanzees could acquire complex visual discriminations using tokens, provided the exchange for backup food rewards was maintained.
Throughout the 1950s, B. F. Skinner articulated the theoretical principles of generalized conditioned reinforcement in works such as Science and Human Behavior (1953). However, the systemic clinical application of backup reinforcers occurred in the mid-1960s through the work of Teodoro Ayllon and Nathan H. Azrin at Anna State Hospital in Illinois. Working with individuals diagnosed with severe, chronic psychiatric conditions—many of whom had been institutionalized for decades and exhibited pervasive institutional apathy—Ayllon and Azrin designed the first structured token economy.
Ayllon and Azrin realized that standard institutional privileges, such as selecting a private dining table, walking the hospital grounds, choosing a private room, or viewing television, could be systematically organized into a formalized menu of backup reinforcers. Patients earned metal tokens by engaging in self-care, occupational therapy, and ward maintenance, and later redeemed these tokens for the backup items. In their seminal 1968 volume, The Token Economy: A Motivational System for Therapy and Rehabilitation, Ayllon and Azrin established the formal terminology and operational rules regarding backup reinforcer selection, pricing structures, and exchange schedules.
During the 1970s and 1980s, researchers such as Alan E. Kazdin and K. Daniel O'Leary refined these procedures, expanding backup reinforcer frameworks into public school classrooms, juvenile correction facilities, and residential programs for individuals with intellectual and developmental disabilities. In subsequent decades, the concept integrated deeply into organizational behavior management (OBM), gamification theory, and addiction treatment protocols.
6. Theoretical Foundations
The mechanism through which a backup reinforcer establishes and maintains behavioral control is grounded in multiple converging theoretical paradigms within experimental and applied behavior analysis.
From the perspective of stimulus-stimulus (S-S) pairing and higher-order conditioning, tokens begin as completely neutral stimuli (NS). When consistently paired with the presentation or consumption of an established reinforcer (the backup reinforcer), the neutral stimulus undergoes Pavlovian conditioning, acquiring conditioned reinforcing properties. The backup reinforcer functions essentially as the unconditioned or previously conditioned stimulus that transfers its valence to the token. If pairings cease entirely—meaning tokens can no longer be redeemed for backup reinforcers—the token undergoes extinction, gradually losing its power to elicit conditioned responding or reinforce operant behavior.
The concept is further enriched by David Premack's Differential Probability Hypothesis, universally known as the Premack principle. Premack established that any higher-probability behavior can serve as an effective reinforcer for an operant behavior of lower baseline probability. When incorporated into token systems, preferred activities (such as outdoor recreation, computer access, or social interaction) function exceptionally well as non-tangible backup reinforcers. The token economy acts as a formalization of Premack's principle, allowing engagement in high-frequency behaviors to be systematically purchased through the completion of lower-frequency academic, vocational, or self-help tasks.
Modern behavior analysis interprets backup reinforcers through the lens of behavioral economics. In this framework, the participant in a token system is viewed as a rational consumer operating within a micro-economy. The backup reinforcer menu constitutes the inventory of consumer commodities, each possessing a specific unit price expressed in tokens. Concepts such as price elasticity of demand, substitutability of reinforcers, and labor supply curves dictate how effectively backup reinforcers drive behavioral output.
For instance, if a backup reinforcer has an excessively high token price relative to the effort required to earn those tokens (a high behavioral cost), demand drops, and the target behavior declines. Conversely, if backup reinforcers are priced too low, participants amass wealth rapidly, reach satiation, and cease engaging in target behaviors. Maintaining an optimal equilibrium between token earnings and backup reinforcer costs represents a critical economic necessity.
7. Key Components, Types & Dimensions
In clinical and educational practice, backup reinforcers are categorized into distinct structural classes based on their physical composition, administration method, and social characteristics. A comprehensive token system typically draws from several of these categories simultaneously:
- Consumable Reinforcers: Edible items, beverages, and biological treats. While highly potent for individuals with severe communicative or cognitive impairments, they are prone to rapid satiation and raise health and nutritional considerations.
- Tangible Reinforcers: Physical objects such as small toys, school supplies, stickers, trading cards, collectibles, or craft kits. These provide durable physical evidence of achievement and can be collected, used, or taken home upon redemption.
- Activity and Privilege Reinforcers: Opportunities to participate in preferred leisure actions, such as extra recess, leading a classroom activity, playing video games, sitting in a preferred chair, or listening to music. These leverage Premack's principle and avoid the logistical expense of physical goods.
- Social and Relational Reinforcers: High-status interpersonal interactions, including one-on-one time with a teacher or supervisor, peer mentorship opportunities, lunch with a preferred adult, or public recognition ceremonies.
- Escape and Avoidance Privileges: Negative reinforcement mechanisms formatted as backup options, such as earning a "homework pass," dropping the lowest quiz score, or taking a short scheduled break from difficult academic tasks.
- Exchange Schedules: The temporal rules specifying when tokens can be traded for backup reinforcers. These can occur on fixed schedules (e.g., every Friday afternoon), variable schedules, or continuous "store" models where access is available whenever minimum token thresholds are met.
- Pricing Ratios: The predetermined economic exchange rates that balance task difficulty with reinforcer desirability, preventing both under-incentivization and rapid satiation.
8. Examples & Illustrative Cases
The functional dynamics of backup reinforcers are best illuminated through real-world applications across educational, clinical, and clinical trial settings.
Classroom Token Economy
In a fourth-grade inclusive classroom, an educator establishes a token system to improve peer collaboration and completion of independent seatwork. Students earn laminated checkmarks on an index card for staying on task and demonstrating prosocial cooperation. On Friday mornings, the "Classroom Store" opens.
The menu of backup reinforcers includes tangible items (pencils with novelty erasers for 10 checkmarks), activity privileges (15 minutes of free computer time for 20 checkmarks), and high-status social roles (serving as line leader or classroom DJ for 25 checkmarks). The checkmarks themselves possess zero intrinsic value; students cannot play with or consume the ink on the cards. Their behavioral power derives entirely from the predictability and desirability of the Friday backup reinforcers.
Clinical Autism Intervention
A Board Certified Behavior Analyst (BCBA) designs an intervention for a non-vocal seven-year-old child diagnosed with Autism Spectrum Disorder to teach functional motor imitation. The child receives plastic poker chips on a continuous reinforcement schedule following correct imitative responses. Once the child accumulates five chips, the therapist immediately exchanges the chips for 90 seconds of access to an iPad playing preferred sensory animated videos.
Here, the video access functions as the direct backup reinforcer. The poker chips allow the therapist to deliver reinforcement instantly without interrupting the clinical trial momentum, bridging the gap to the larger, temporally extended backup activity.
Psychiatric Rehabilitation Ward
In an adult inpatient psychiatric facility, individuals recovering from severe affective disorders earn tokens for attending morning medication rounds, completing personal hygiene routines, and participating in group therapy. The backup reinforcers include access to a private recreation lounge equipped with pool tables, passes to stroll the outdoor gardens, coffee vouchers, and preferred single-room occupancy privileges.
In this clinical context, the backup reinforcers provide tangible incentives that re-engage individuals whose intrinsic motivation has been profoundly depleted by institutionalization and depressive symptomatology.
9. Measurement & Assessment
A token system cannot function effectively if the designated backup items do not possess genuine reinforcing value for the individual. Therefore, applied behavior analysis mandates the rigorous, systematic assessment of backup reinforcer potency before and during intervention design.
The standard baseline procedure involves conducting formalized Preference Assessments to establish a hierarchical ranking of potential backup items:
- Paired-Stimulus Preference Assessment (Stimulus Choice): Developed by Fisher et al. (1992), this method presents two stimuli simultaneously to the participant, who selects one. Every item is paired systematically against every other item. The resulting data yields an exact percentage ranking of preference, identifying high-preference (HP) stimuli ideal for high-cost backup reinforcers, and moderate-preference (MP) stimuli suitable for lower-cost items.
- Multiple Stimulus Without Replacement (MSWO): Designed by DeLeon and Iwata (1996), the MSWO presents an array of items simultaneously. When the participant selects an item, it is consumed or interacted with and subsequently removed from the array, leaving fewer items for subsequent choices. This assessment is rapid and highly efficient for calibrating backup reinforcer menus in classroom and clinical settings.
- Free-Operant Preference Assessment: The individual is provided unconstrained access to a room filled with various items and activities. Observers record the cumulative duration of engagement with each stimulus. Items associated with the highest engagement duration are selected as primary candidates for activity-based backup reinforcers.
Once preferences are identified, clinicians conduct an empirical Reinforcer Assessment to confirm that access to the backup item actually increases or maintains the target behavior under experimental conditions. Commonly, researchers employ a concurrent-schedule or progressive-ratio (PR) schedule. In a progressive-ratio assessment, the response requirement systematically escalates (e.g., 2 tokens, 4 tokens, 8 tokens, 16 tokens) until the individual ceases responding (the "break point"). The break point provides an objective quantitative measurement of the backup reinforcer's strength and resilience against economic strain.
10. Applications & Practical Significance
The applications of backup reinforcers extend far beyond traditional psychological clinics, influencing public policy, software engineering, and community health initiatives.
In Special and General Education, backup reinforcers serve as the organizational engine for School-Wide Positive Behavioral Interventions and Supports (SWPBIS). Schools create unified economies where "gotcha" tickets or digital points awarded for safe, respectful, and responsible conduct are redeemed for school dances, sports equipment, homework exemptions, or field trips. By maintaining a dynamic, culturally responsive array of backup rewards, schools foster positive school climate without resorting to punitive discipline.
In Addiction Treatment and Public Health, backup reinforcers are fundamental to contingency management protocols. Patients submitting verified drug-free urine samples receive vouchers or prize-drawing slips. In the "fishbowl" prize contingency management model developed by Nancy Petry and colleagues, negative toxicology screens earn draws from a bowl containing slips for backup prizes ranging from small toiletries and bus passes to larger electronic appliances. Empirical research demonstrates that the presence of high-magnitude backup reinforcers drastically improves treatment retention and sustained abstinence in cocaine, opioid, and nicotine dependencies.
In Organizational Behavior Management (OBM), corporate performance management architectures adapt token economies through performance-based incentive systems. Employees accumulate safety points, sales tokens, or quarterly credits for hitting precision operational milestones. These points are redeemed through digital catalogs for backup items such as paid time off (PTO), company merchandise, travel vouchers, or experiential retreats, directly linking daily productivity to meaningful material and professional outcomes.
In Gamification and Digital Design, video games and fitness applications utilize backup reinforcers to drive user engagement. In-game gold, gems, and experience points are generalized conditioned reinforcers. The character skins, upgraded weaponry, exclusive levels, and aesthetic cosmetics unlocked by spending that currency constitute the backup reinforcers that maintain millions of hours of user behavior worldwide.
11. Research & Empirical Evidence
The empirical literature validating the critical role of backup reinforcers is vast and spans nearly nine decades of rigorous behavioral investigation.
Early laboratory foundations established by John B. Wolfe (1936) and John T. Cowles (1937) demonstrated that chimpanzees rapidly ceased pulling levers or pressing buttons when the tokens they received could no longer be redeemed for grapes, marking the first controlled demonstration of token extinction following the elimination of backup reinforcement. Skinner's work on chained and generalized schedules systematically confirmed that conditioned reinforcers depend entirely on their functional association with terminal reinforcers.
In their classic 1968 clinical study at Anna State Hospital, Ayllon and Azrin introduced rigorous withdrawal designs (ABAB designs) to assess the functional necessity of the exchange mechanism. In the baseline condition, psychiatric inpatients earned tokens that could be exchanged for preferred hospital backup reinforcers, resulting in high levels of work performance and personal care routines. During the experimental withdrawal phase, tokens were delivered non-contingently or the backup exchange was eliminated while tokens were still distributed. Ayllon and Azrin observed an immediate, catastrophic drop in target behaviors, proving that tokens devoid of functional backup reinforcers possess virtually zero sustained behavioral control.
Subsequent meta-analyses by Alan E. Kazdin (1977, 1982) evaluated hundreds of token economies across schools, hospitals, and correctional centers. Kazdin concluded that the single most decisive factor dictating the longevity and efficacy of an applied token economy is the breadth, individualized appeal, and regular updating of the backup reinforcer menu. Programs that relied on narrow, static backup options suffered significant treatment degradation over time due to habituation and satiation.
In contingency management research, Stephen T. Higgins and colleagues (1991, 1994) conducted landmark randomized clinical trials demonstrating that voucher-based backup reinforcers dramatically outperformed standard counseling in retaining outpatient cocaine abusers in therapy. Further studies by Nancy Petry (2000, 2005) confirmed that varying the magnitude and probability of backup reinforcers directly altered drug abstinence trajectories, solidifying the backup reinforcer as an indispensable pharmacological and behavioral tool.
12. Cultural & Cross-Cultural Considerations
The design and selection of backup reinforcers demand meticulous cultural sensitivity and contextual awareness. A stimulus that serves as a powerful positive reinforcer in one cultural context may be completely ineffective, socially inappropriate, or even reinforcing of negative stereotypes in another.
In individualistic cultural settings (such as predominant Western paradigms), backup reinforcers frequently emphasize personal autonomy, individual material acquisition, private privileges, and public standing. Conversely, in collectivist cultural environments (common in many East Asian, African, and Indigenous communities), individualistic reinforcement menus can evoke social discomfort or alienation. In collectivist contexts, highly effective backup reinforcers often center on communal benefits—such as earning an extended recess period for the entire group, winning a resource that benefits one's family, or participating in shared community service initiatives.
Socioeconomic status (SES) also interacts profoundly with backup reinforcer utility. For students or clients from economically disadvantaged backgrounds, tangible backup reinforcers that fulfill basic survival needs—such as nutritious groceries, warm winter clothing, or hygiene supplies—can inadvertently create coercive or ethically compromised dynamics if basic life necessities are made contingent upon behavioral compliance. Ethical clinical practice dictates that unconditioned life necessities must be provided unconditionally, reserving backup menus for authentic enrichments, preferred activities, and genuine educational privileges.
Furthermore, linguistic and religious customs dictate the acceptability of specific items. Dietary prohibitions (e.g., Kosher, Halal, or vegetarian practices) must strictly govern any consumable backup reinforcer menu. Failure to systematically consult with families, community stakeholders, and the participants themselves regarding the cultural validity of backup reinforcers risks alienating participants and undermines the ecological validity of the intervention.
13. Criticisms, Debates & Limitations
Despite their established efficacy, backup reinforcers and the token systems they support have been the subject of longstanding academic debates and operational criticisms.
A primary theoretical critique stems from cognitive and humanistic psychology, most notably articulated by Edward L. Deci and Richard M. Ryan in their Self-Determination Theory (SDT), as well as popular critiques by Alfie Kohn. Critics argue that introducing tangible, external backup reinforcers to reward behaviors that individuals might otherwise find intrinsically meaningful (such as reading, artistic expression, or basic social cooperation) can cause the "overjustification effect." According to this view, extrinsic backup reinforcers undermine intrinsic motivation, leading individuals to perform the behavior only when an external reward is guaranteed, resulting in post-reinforcement behavioral collapse once the economy is faded.
Behavior analysts counter this critique by demonstrating that intrinsic interest rarely exists at functional levels for individuals with profound learning challenges, severe apathy, or significant developmental delays. In applied behavior analysis, backup reinforcers are conceptualized as temporary instructional scaffolds designed to build initial behavioral behavioral repertoires. Once the behavior occurs at high frequency, it can naturally contact the unprogrammed, natural reinforcers present in the environment (such as peer approval, personal competence, and academic mastery), allowing clinicians to systematically fade the artificial backup reinforcers.
Logistical and operational limitations also represent significant challenges:
- Satiation and Habituation: If an individual has unlimited or easy non-contingent access to the backup reinforcers outside the token system (e.g., parents purchasing the exact same video games or treats at home), the backup reinforcer loses its value within the clinic or school.
- Counterfeiting and Theft: When tokens are physically tangible (such as plastic chips or tickets), participants may steal, hoard, or counterfeit them, subverting the behavioral contingencies of the backup store.
- Systemic Dependency: In poorly managed systems, staff may rely perpetually on high-cost material backup items rather than transitioning participants toward natural social and intrinsic reinforcement, causing regression when the client transitions to less structured environments.
14. Related Terms & Distinctions
Precision in behavior analytic discourse requires distinguishing the backup reinforcer from related operant constructs:
- Conditioned Reinforcer (Token): A stimulus that acquires reinforcing properties through pairing with other reinforcers. The token is the medium of exchange; the backup reinforcer is the terminal good or service received in that exchange.
- Generalized Conditioned Reinforcer: A conditioned reinforcer that has been paired with many different backup reinforcers across time (e.g., money). It is independent of specific establishing operations, whereas the backup reinforcer itself is often subject to specific, acute motivating operations.
- Primary (Unconditioned) Reinforcer: A stimulus that is naturally reinforcing without prior learning (e.g., water, shelter). Primary reinforcers frequently serve as backup reinforcers, but backup reinforcers can also be learned activities, games, or social privileges.
- Bribe: An illicit or corrupt inducement delivered before an illicit act occurs to alter an outcome. In stark contrast, a backup reinforcer is part of a transparent, ethical, pre-announced behavioral contingency delivered strictly after the verified completion of desired prosocial behaviors.
- Terminal Reinforcer: The final reinforcing event that concludes a behavioral chain. While all backup reinforcers in a simple token exchange terminate that specific transaction, terminal reinforcers in chaining procedures do not necessarily involve symbolic monetary exchange.
15. Summary / Key Takeaways
The backup reinforcer is an indispensable component of operant learning systems, functioning as the foundational anchor of token economies across clinical, educational, and organizational environments. The following core principles summarize its clinical and theoretical significance:
- The backup reinforcer provides the empirical motivational substance that allows neutral tokens, chips, and points to function as generalized conditioned reinforcers.
- Without consistent, predictable, and functional access to backup reinforcers, token economies suffer experimental extinction and quickly collapse.
- Utilizing a diverse menu of consumable, tangible, activity-based, and social backup reinforcers protects the behavioral system against the abolishing effects of reinforcer satiation.
- Systematic preference and reinforcer assessments (e.g., MSWO, Paired-Stimulus) are mandatory prerequisite procedures to verify that backup items possess genuine reinforcing value.
- Backup reinforcers enable the teaching of delayed gratification, self-regulation, and complex behavioral repertoires by bridging the temporal gap between effortful responding and long-term reward.
- Ethical implementation requires culturally congruent selections, avoidance of withholding basic human rights, and systematic plans to fade artificial backup items in favor of natural community contingencies.
Ultimately, the backup reinforcer demonstrates how fundamental principles of learning can be translated into sophisticated motivational architectures. By grounding abstract symbolic representations in meaningful personal outcomes, behavior analysts continue to empower individuals to master new skills, overcome debilitating challenges, and achieve meaningful personal autonomy.
References
- Ayllon, T., & Azrin, N. H. (1968). The token economy: A motivational system for therapy and rehabilitation. Appleton-Century-Crofts.
- Cowles, J. T. (1937). Food-tokens as incentives for learning by chimpanzees. Comparative Psychology Monographs, 14(5), 1–96.
- DeLeon, I. G., & Iwata, B. A. (1996). Evaluation of a multiple-stimulus presentation format for assessing reinforcer preferences. Journal of Applied Behavior Analysis, 29(3), 283–299. https://doi.org/10.1901/jaba.1996.29-283
- Fisher, W., Piazza, C. C., Bowman, L. G., Hagopian, L. P., Owens, J. C., & Slevin, I. (1992). A comparison of two approaches for identifying reinforcers for persons with severe and profound disabilities. Journal of Applied Behavior Analysis, 25(2), 491–498. https://doi.org/10.1901/jaba.1992.25-491
- Higgins, S. T., Delaney, D. D., Budney, A. J., Bickel, W. K., Hughes, J. R., Foerg, F., & Fenwick, J. W. (1991). A behavioral approach to coping with illicit drug use: A voucher-based contingency management system. American Journal of Psychiatry, 148(9), 1218–1224. https://doi.org/10.1176/ajp.148.9.1218
- Kazdin, A. E. (1977). The token economy: A review and evaluation. Plenum Press. https://doi.org/10.1007/978-1-4613-4124-6
- Petry, N. M. (2000). A comprehensive guide to the application of contingency management procedures in clinical settings. Drug and Alcohol Dependence, 58(1–2), 9–25. https://doi.org/10.1016/S0376-8716(99)00071-X
- Skinner, B. F. (1953). Science and human behavior. Macmillan.
- Wolfe, J. B. (1936). Effectiveness of token-rewards for chimpanzees. Comparative Psychology Monographs, 12(5), 1–72.