DIFFERENTIAL REINFORCEMENT OF ALTERNATIVE BE

Conceptual Foundation of Differential Reinforcement of Alternative Behavior (DRA)

Differential Reinforcement of Alternative Behavior, commonly abbreviated as DRA, is a fundamental behavioral intervention strategy employed within the discipline of Applied Behavior Analysis (ABA). This procedure is designed to reduce the frequency of an undesirable or maladaptive behavior by systematically reinforcing a specific, desirable alternative behavior while simultaneously withholding reinforcement for the problem behavior. The core philosophy of DRA is grounded in the principle of operant conditioning, which posits that behaviors are shaped and maintained by their environmental consequences. By manipulating these consequences, practitioners can effectively shift an individual’s behavioral repertoire toward more socially appropriate and functional responses. Unlike simple punishment-based techniques, DRA focuses on building new skills and expanding the individual’s ability to navigate their environment effectively.

The original conceptualization of Differential Reinforcement of Alternative Behavior emphasizes a dual-mechanism process: the extinction of a non-selected response and the reinforcement of a selected response. Extinction occurs when the reinforcement that previously maintained a problem behavior is no longer provided. For example, if a child engages in disruptive shouting to gain attention, the extinction component of DRA would involve ignoring the shouting. However, extinction alone can be a slow process and may lead to an extinction burst, where the problem behavior temporarily increases in intensity or frequency. To counteract this, the reinforcement component of DRA provides an immediate alternative path for the individual to receive the desired outcome, such as attention, by engaging in a more appropriate behavior like raising their hand or speaking at a moderate volume.

In practice, DRA is highly effective because it addresses the underlying function of the behavior. Every behavior serves a purpose—whether it is to obtain attention, escape a difficult task, gain access to a tangible item, or satisfy a sensory need. By identifying this function through a Functional Behavior Assessment (FBA), a practitioner can select an alternative behavior that serves the exact same purpose as the problem behavior. This ensures that the individual is not left without a way to meet their needs, which significantly increases the likelihood of long-term success and reduces the frustration often associated with behavioral change programs. The synergy between reinforcement and extinction creates a powerful environment where the desirable behavior becomes the most efficient and reliable way for the individual to achieve their goals.

Functional Behavior Assessment and the Selection of Alternative Responses

Before implementing a Differential Reinforcement of Alternative Behavior program, a comprehensive Functional Behavior Assessment (FBA) is an absolute prerequisite. The FBA allows the clinician to determine the specific antecedents and consequences that maintain the problem behavior. Without this data, any attempt at DRA is likely to fail, as the reinforcement provided for the alternative behavior might not match the original function of the maladaptive behavior. For instance, if a student engages in off-task behavior to escape a difficult math assignment, reinforcing the student with praise (attention) for staying on task may not be effective if the student’s primary motivation is to avoid the work. In this case, the reinforcement for the alternative behavior must include a functional equivalent, such as a brief break from the task.

The selection of the alternative behavior is a critical step that requires careful consideration of the individual’s current skill set and the social validity of the response. The replacement behavior should ideally be already present in the individual’s repertoire or be a skill that can be easily taught. Furthermore, the alternative behavior must be functionally equivalent to the problem behavior, meaning it must result in the same consequence. If the problem behavior is hitting to get a toy, the alternative behavior could be asking for the toy using a verbal request or a picture card. The goal is to make the alternative behavior more efficient than the problem behavior, requiring less physical effort and resulting in more immediate or higher-quality reinforcement.

Another important factor in selecting the alternative response is the concept of response effort. If the alternative behavior is significantly more difficult to perform than the problem behavior, the individual is unlikely to adopt it. For example, if a child can easily scream to get a snack, but the alternative behavior requires them to walk across the room and perform a complex series of signs, they will likely continue screaming. Therefore, the practitioner must ensure that the reinforcement schedule for the alternative behavior is dense and that the physical or cognitive effort required is minimized during the initial stages of the intervention. As the alternative behavior becomes more established, the requirements can be gradually increased through a process of shaping.

The Role of Extinction and Managing the Extinction Burst

A central component of Differential Reinforcement of Alternative Behavior is the application of extinction to the target problem behavior. Extinction is defined as the discontinuation of reinforcement for a previously reinforced behavior, which eventually leads to a decrease in the rate of that behavior. In the context of DRA, this means that the practitioner must ensure the problem behavior no longer “works” for the individual. If the goal is to reduce aggression that is maintained by access to toys, the individual must never receive a toy following an aggressive act. Consistency is the most vital element of extinction; even occasional reinforcement of the problem behavior (intermittent reinforcement) can make the behavior highly resistant to change and undermine the entire DRA protocol.

One of the most challenging aspects of implementing extinction within a DRA framework is the extinction burst. When reinforcement is first withheld, the individual may experience an increase in the frequency, intensity, or variability of the problem behavior as they “try harder” to get the reinforcement they are used to receiving. This can be a high-risk period, especially if the behavior involves self-injury or aggression. However, the reinforcement of the alternative behavior acts as a safety valve during this process. By providing a clear, alternative way to access the same reinforcer, the intensity of the extinction burst is often mitigated, as the individual quickly learns that the new behavior is more effective than the escalating problem behavior.

To successfully manage extinction, practitioners must also be aware of spontaneous recovery, where the problem behavior reappears after it has been successfully reduced. This is a common phenomenon in behavioral psychology and does not indicate that the DRA intervention has failed. Instead, it serves as a test of the environment’s consistency. If the environment continues to withhold reinforcement for the problem behavior and provides high-quality reinforcement for the alternative behavior, the spontaneous recovery will be short-lived. Long-term success in DRA requires a commitment from all caregivers and staff to maintain the extinction protocol consistently across all settings and over extended periods.

Distinguishing DRA from Other Differential Reinforcement Procedures

It is essential to distinguish Differential Reinforcement of Alternative Behavior from other related procedures, such as Differential Reinforcement of Incompatible Behavior (DRI) and Differential Reinforcement of Other Behavior (DRO). While they all share the goal of reducing problem behavior through reinforcement, their specific mechanisms differ. In DRI, the practitioner reinforces a behavior that is physically incompatible with the problem behavior. For example, if a student is constantly getting out of their seat, the teacher might reinforce sitting in the seat, as one cannot sit and stand simultaneously. While DRA often involves incompatible behaviors, it does not strictly require them; the alternative behavior only needs to be a functional replacement, not necessarily a physical impossibility to perform alongside the problem behavior.

Differential Reinforcement of Other Behavior (DRO), on the other hand, involves delivering reinforcement whenever the problem behavior has not occurred during a specific interval of time. Unlike DRA, which targets a specific replacement skill, DRO reinforces the absence of the behavior. While DRO can be effective for rapidly reducing dangerous behaviors, it has the disadvantage of not teaching the individual what to do instead. DRA is generally preferred in educational and clinical settings because it focuses on skill acquisition and provides the individual with a functional communication or social skill that they can use for the rest of their lives. By reinforcing an alternative response, DRA promotes a more proactive and constructive approach to behavior management.

Another variation is Differential Reinforcement of Low Rates of Responding (DRL), which is used when a behavior is acceptable in small amounts but problematic when it occurs too frequently. For instance, a student asking questions in class is desirable, but asking forty questions in ten minutes is disruptive. DRL reinforces the individual for engaging in the behavior only after a certain amount of time has passed. In contrast, DRA is typically used when the goal is to replace a behavior entirely or significantly shift the balance between a “bad” and “good” response. Understanding these distinctions allows behavior analysts to select the most appropriate tool for the specific behavioral challenge they are addressing.

Implementing Reinforcement Schedules and Schedule Thinning

The success of a Differential Reinforcement of Alternative Behavior intervention depends heavily on the schedule of reinforcement used for the alternative behavior. In the initial stages of the program, a continuous reinforcement schedule (FR1) is typically employed. This means that every single instance of the alternative behavior is immediately followed by the functional reinforcer. This high density of reinforcement is necessary to quickly establish the new behavior and to demonstrate to the individual that the alternative response is significantly more efficient than the problem behavior. During this phase, the practitioner must be vigilant and ready to provide the reinforcer the moment the desired behavior occurs.

Once the alternative behavior is occurring consistently and the problem behavior has reached a low or zero rate, the practitioner begins the process of schedule thinning. This involves gradually moving from a continuous reinforcement schedule to an intermittent reinforcement schedule, such as a fixed-ratio or variable-interval schedule. Schedule thinning is crucial for the maintenance and generalization of the behavior. In real-world environments, it is impossible for every good behavior to be reinforced every time. By thinning the schedule, the individual learns to persist in the desirable behavior even when reinforcement is not immediate or guaranteed, making the behavior more robust and resistant to extinction in natural settings.

The process of thinning must be done carefully to avoid ratio strain, which occurs when the reinforcement schedule is thinned too quickly, causing the desirable behavior to decrease or the problem behavior to return. Practitioners monitor data closely during this phase to ensure that the individual continues to engage in the alternative behavior at high rates. If the behavior begins to falter, the practitioner may temporarily return to a denser schedule of reinforcement before attempting to thin it again. The ultimate goal is to bring the alternative behavior under the control of natural reinforcers found in the individual’s everyday environment, such as social praise, successful communication, or the natural completion of tasks.

Clinical Applications and Population-Specific Considerations

Differential Reinforcement of Alternative Behavior has a wide range of clinical applications, particularly in the treatment of individuals with Autism Spectrum Disorder (ASD) and other developmental disabilities. For these populations, problem behaviors such as self-injury, aggression, or pica are often the result of limited communication skills. DRA, specifically in the form of Functional Communication Training (FCT), allows these individuals to learn signs, vocalizations, or the use of augmentative and alternative communication (AAC) devices to express their needs. By reinforcing these communicative acts, clinicians can drastically reduce dangerous behaviors while empowering the individual with the tools they need for self-advocacy and social interaction.

In educational settings, DRA is a staple of Positive Behavioral Interventions and Supports (PBIS). Teachers use DRA to manage classroom dynamics by reinforcing students for following instructions, participating in discussions, or staying on task, while ignoring minor disruptive behaviors. This creates a positive classroom climate where students are motivated to engage in productive activities. The use of DRA in schools not only improves academic outcomes but also helps students develop essential social-emotional skills that are vital for their long-term success. It shifts the focus from “policing” bad behavior to “coaching” good behavior, which fosters a more supportive learning environment.

DRA is also highly effective in adult populations, including those in rehabilitation for substance abuse or individuals with traumatic brain injuries. In these contexts, DRA can be used to reinforce healthy coping mechanisms, vocational skills, or social interactions that serve as alternatives to addictive or impulsive behaviors. The principles remain the same: identify the function of the maladaptive behavior and provide a superior, reinforced alternative. Whether the setting is a high-security psychiatric ward or a community-based group home, the systematic application of DRA provides a structured, evidence-based pathway for behavioral improvement and enhanced quality of life.

Critical Steps for Successful DRA Implementation

To ensure the efficacy of a Differential Reinforcement of Alternative Behavior protocol, several critical steps must be followed with precision. The following list outlines the essential procedural elements for practitioners:

• Definition of Target Behaviors: Clearly define both the problem behavior to be decreased and the alternative behavior to be increased in observable and measurable terms.
• Functional Reinforcer Identification: Conduct a preference assessment or functional analysis to identify the exact reinforcer that maintains the problem behavior.
• Establishment of Baseline: Collect data on the current frequency and duration of both the problem and alternative behaviors before starting the intervention.
• Immediate Reinforcement: Ensure that the alternative behavior is reinforced immediately and every time it occurs during the initial phase of the program.
• Consistent Extinction: Ensure that all individuals in the individual’s environment are trained to withhold reinforcement for the problem behavior consistently.
• Data Monitoring: Continuously collect and graph data to evaluate the effectiveness of the intervention and make necessary adjustments.
• Generalization Training: Practice the alternative behavior in different settings, with different people, and under different conditions to ensure the skill transfers to real-life situations.

The sequence of these steps is vital for maintaining the integrity of the intervention. Skipping the baseline phase, for example, makes it impossible to objectively determine if the intervention is working. Similarly, failing to train all staff members on the extinction protocol can lead to intermittent reinforcement of the problem behavior, which can inadvertently strengthen the very behavior the practitioner is trying to eliminate. A disciplined, data-driven approach is the hallmark of professional DRA implementation.

Monitoring Progress and Data-Driven Decision Making

In the field of behavior analysis, data is the primary driver of all clinical decisions. When implementing Differential Reinforcement of Alternative Behavior, practitioners use various data collection methods to track the progress of both the problem behavior and the replacement behavior. Common methods include frequency recording, where every instance of the behavior is counted, and duration recording, which measures how long a behavior lasts. These data points are then plotted on a visual graph, allowing the clinician to observe trends over time. A successful DRA program will show a clear downward trend in the problem behavior and a corresponding upward trend in the alternative behavior.

If the data indicates that the problem behavior is not decreasing, the practitioner must engage in troubleshooting. This involves re-evaluating the FBA to ensure the function was correctly identified, checking for procedural fidelity (ensuring the plan is being followed correctly by all staff), and assessing the potency of the reinforcer. Sometimes, a reinforcer that was effective on Monday may lose its value by Wednesday due to satiation. In such cases, the practitioner may need to use a variety of reinforcers or a token economy to maintain high levels of motivation for the alternative behavior. Data-driven decision making ensures that the intervention remains responsive to the individual’s needs and environmental changes.

Furthermore, data collection helps in determining when to move to the maintenance phase of the intervention. Once the alternative behavior has reached a stable, high rate and the problem behavior has been near zero for a significant period, the practitioner can focus on ensuring the behavior persists without the need for intensive clinical oversight. This involves periodic probes to check for the behavior’s occurrence in natural settings. By relying on objective data rather than subjective impressions, the practitioner can provide a high level of accountability and ensure that the individual is making genuine, lasting progress toward their behavioral goals.

Ethical Considerations in Differential Reinforcement

While Differential Reinforcement of Alternative Behavior is a non-aversive and positive intervention, it still carries several ethical considerations that must be addressed. According to the Behavior Analyst Certification Board (BACB) ethics code, practitioners must always use the least restrictive procedures necessary to achieve the desired change. DRA is highly ethical in this regard because it prioritizes reinforcement over punishment. However, practitioners must ensure that the alternative behavior selected is socially significant and improves the individual’s quality of life. It is unethical to use DRA to force an individual to conform to arbitrary standards that do not benefit them personally or socially.

Another ethical consideration involves the use of extinction. In some cases, withholding reinforcement can lead to severe emotional distress or dangerous behaviors during an extinction burst. Practitioners must weigh the benefits of reducing the problem behavior against the potential risks of the extinction process. If the problem behavior is dangerous (e.g., severe self-injury), the practitioner might need to combine DRA with other safety measures or use a non-contingent reinforcement (NCR) schedule to reduce the overall level of motivation for the behavior before introducing extinction. Informed consent from the individual or their legal guardian is mandatory, ensuring they understand the potential for an initial increase in behavior during the extinction phase.

Finally, the selection of reinforcers must be ethical and culturally sensitive. Reinforcers should be age-appropriate and respect the individual’s dignity. For example, using primary reinforcers like food should only be done when other secondary reinforcers (like social praise or tokens) are not effective, and even then, it should be done with a plan to fade to more natural reinforcers as soon as possible. The goal of DRA is always the empowerment of the individual, providing them with the agency to communicate their needs and interact with their world in a way that is both effective and socially accepted.

Summary of Best Practices for Long-Term Behavioral Success

To summarize, Differential Reinforcement of Alternative Behavior is a sophisticated and highly effective tool for behavior change when implemented with precision and care. Its success is rooted in its ability to replace maladaptive actions with functional, reinforced skills. For long-term success, practitioners should focus on the following key principles:

1. Function-Based Intervention: Always ensure the alternative behavior accesses the same reinforcer as the problem behavior.
2. Consistency Across Environments: Train all caregivers to ensure the reinforcement and extinction protocols are applied uniformly in all settings.
3. Gradual Schedule Thinning: Do not rush the removal of reinforcement; move toward natural schedules only when the behavior is stable.
4. Emphasis on Skill Acquisition: View DRA as a teaching tool, not just a management tool, focusing on expanding the individual’s communicative and social repertoire.

By adhering to these principles, Differential Reinforcement of Alternative Behavior can transform the lives of individuals struggling with challenging behaviors. It provides a compassionate, evidence-based framework that respects the individual’s needs while promoting safer and more productive social environments. As the field of Applied Behavior Analysis continues to evolve, the refined application of DRA remains a gold standard for promoting positive behavioral outcomes across a diverse range of populations and settings.