How Reinforcement Really Works (And Why It’s Not One-Size-Fits-All)
If you have spent any time reading dog training advice, you have likely come across phrases such as “use high-value rewards” or “reinforce the behaviors you want.” While these statements are well intentioned, they often oversimplify a concept that is far more nuanced. Reinforcement is not about using a specific treat, toy, or technique. It is about understanding how behavior changes over time and why certain outcomes make behaviors more likely to occur again. This is where Applied Behavior Analysis, or ABA, provides a valuable framework that can greatly improve how we approach dog training.
In behavior analysis, a reinforcer is defined as anything that increases the future likelihood of a behavior. This definition is important because it shifts our focus away from what we think should be motivating and toward what is actually happening in real time. If a dog performs a behavior and that behavior occurs more frequently afterward, then whatever followed the behavior functioned as a reinforcer. If the behavior does not increase, then the consequence was not reinforcing in that context, regardless of how appealing it may seem to us as humans. Reinforcement is therefore determined by behavior change, not by intention.
One of the most misunderstood aspects of reinforcement is that it is subjective. There is no single reward that works for every dog, in every environment, at every moment. Dogs, much like people, have individual preferences that can shift based on context, stress levels, past learning, and the environment they are in. A dog that works eagerly for food inside the house may show little interest in the same food outdoors, not because the dog is being stubborn or defiant, but because the surrounding environment has increased the value of other competing reinforcers. Smells, movement, distance from pressure, or social interaction may all outweigh the value of food in that moment.
This subjectivity is also why owners often feel confused when something that worked yesterday suddenly stops working today. Motivation is not static. Reinforcer value changes, and effective training requires us to notice those changes rather than assume the dog is being difficult. In ABA, this is referred to as understanding preference and motivation, and it is a critical component of ethical and effective behavior change.
A common concern among dog owners is the fear of “bribing” their dog. This concern usually stems from a misunderstanding of how reinforcement should be used. Bribery occurs when a reward is presented before a behavior in order to coax the dog into complying. Reinforcement, on the other hand, happens after the behavior and strengthens the dog’s understanding that their own actions produce outcomes. When reinforcement is used correctly, it teaches the dog that behavior is meaningful and effective, rather than creating dependency on visible rewards.
Another key concept borrowed from ABA is the idea of behavioral function. The function of a behavior refers to the reason the behavior continues, or what the behavior produces for the individual. In dog training, behaviors are often labeled as “good” or “bad” without considering what purpose they serve. A dog that pulls on the leash may be accessing interesting smells. A dog that barks may be creating distance from something that feels overwhelming. A dog that jumps may be gaining attention or interaction. Without understanding the function, attempts to change behavior often fall short or create new problems.
When we identify the function of a behavior, we can begin to teach what are called functionally equivalent replacement behaviors. These are alternative behaviors that serve the same purpose as the original behavior but are safer, more appropriate, or more desirable. Instead of trying to eliminate a behavior without a plan, we teach the dog a different way to meet the same need. For example, a dog that barks to create space can be taught to disengage and orient back to the handler, still achieving relief while reducing conflict. A dog that pulls to move forward can learn that loose-leash walking results in continued movement. In each case, the reinforcer remains the same, but the behavior changes.
This is also why relying solely on corrections often leads to incomplete or fragile training results. While corrections may suppress behavior temporarily, they do not change the underlying function driving the behavior. If the dog still needs access, relief, safety, or engagement, the behavior is likely to resurface or be replaced by another unwanted response. ABA emphasizes that lasting behavior change occurs when the new behavior is just as effective, or more effective, than the old one in producing the desired outcome.
At its core, reinforcement is a form of communication. It tells the dog which behaviors are successful in a given context. When used thoughtfully, reinforcement creates clarity, builds confidence, and reduces frustration for both the dog and the handler. This applies equally to pet dogs and high-drive working dogs. The difference lies not in whether reinforcement works, but in how it is selected, timed, and applied.
Effective training is not about endlessly handing out rewards or avoiding boundaries. It is about understanding what motivates an individual dog in a specific environment and using that information to guide behavior change intentionally. When dog training is informed by the principles of behavior analysis, it becomes less about control and more about clarity. That is how real, durable behavior change happens.
What Is a Reinforcer, Really?
In ABA, a reinforcer is anything that increases the future likelihood of a behavior.
That’s it.
Not:
What should motivate the dog
What motivated another dog
What motivated your dog yesterday
A reinforcer is only a reinforcer if the behavior increases.
For example:
If your dog sits and receives food, and sitting happens more often → the food was a reinforcer.
If your dog sits, gets food, and sitting does not increase → that food was not functioning as a reinforcer in that moment.
This distinction matters because it shifts us away from guessing and toward observing behavior change.
Why Reinforcers Are Subjective
One of the biggest misconceptions in dog training is that certain rewards are universally motivating.
They aren’t.
Just like humans:
Some dogs work hard for food
Some prefer toys or movement
Some value access to the environment (sniffing, freedom, engagement)
Some are motivated by social interaction
Some change preferences based on stress, fatigue, or context
In ABA, we call this individual preference, and it can fluctuate.
A dog that loves food in the kitchen may completely ignore it outside — not because the dog is stubborn, but because the environment has changed the value of that reinforcer.
This is also why a reward that worked during early training may suddenly stop working later on. Motivation is dynamic.
Reinforcement vs. Bribery (An Important Distinction)
Owners often worry that using rewards will lead to “bribing” their dog.
The difference comes down to timing and contingency.
Good training uses reinforcement strategically — teaching the dog that their behavior produces outcomes.
Over time, reinforcement doesn’t disappear; it simply becomes more variable, more natural, and less obvious.
Understanding “Function”: Why the Behavior Is Happening
This is where ABA adds enormous value to dog training.
In behavior analysis, function refers to the reason a behavior continues.
Not the emotion — the outcome the behavior produces.
Common functions include:
Gaining attention
Escaping or avoiding something unpleasant
Accessing desired items or activities
Sensory or internal reinforcement
For dogs, this might look like:
Pulling on leash → gains access to smells
Jumping → gets social interaction
Barking → creates distance from a trigger
Ignoring cues → avoids pressure or confusion
If we don’t understand the function, we often reinforce the problem behavior without realizing it.
Functionally Equivalent Replacement Behaviors (FERBs)
A Functionally Equivalent Replacement Behavior is a behavior that:
Serves the same function as the unwanted behavior
Is safer, more appropriate, or more desirable
For example:
If barking creates distance from a scary dog, teaching a disengage-and-look behavior can serve the same function.
If pulling gains access to movement, structured loose-leash walking with forward progress can replace it.
If jumping gains attention, an incompatible behavior like sitting can meet the same need.
The key is that the reinforcer stays the same, but the behavior changes.
This is how we create lasting behavior change instead of suppression.
Why Simply “Correcting” Often Fails
Corrections may stop a behavior temporarily, but they rarely address function.
If the dog still needs:
Access
Relief
Control
Safety
Engagement
The behavior wlll either return or reappear in a different form.
ABA teaches us that durable behavior change happens when:
The new behavior works as well or better than the old one
The reinforcer is clear and consistent
The dog understands the contingency
This is why thoughtful reinforcement is not permissive — it’s precise.
Reinforcement Is a Communication Tool
At its core, reinforcement tells the dog:
“Yes. That behavior works here.”
When used correctly, it:
This applies to pet dogs, high-drive dogs, and working dogs alike. The difference is not whether reinforcement works — it’s how it’s applied.
Final Thoughts
Effective training isn’t about forcing behavior or endlessly rewarding everything. It’s about understanding:
What motivates this dog
In this environment
For this function
When we combine solid dog training mechanics with the science of behavior analysis, we move away from frustration and toward intentional, ethical, and effective training.
That’s how behavior actually changes.