Canine Behavior · Force-Free Advocacy
The Collar Trains the Trainer
Sixty-three scientific studies and sources. 169 organizations. Not one study for the other side. Here is why none of it reaches the people holding the remote.
Ask a balanced trainer for one study.
Not fifty. One. One peer-reviewed study showing that a shock collar, a prong collar, or a choke chain gets better or faster results than reward-based training without putting the dog’s welfare at risk. Not a study showing the collar can stop a behavior. Everyone knows it can. A study showing the three things the sales pitch depends on: more effective, more efficient, and no welfare cost the dog would otherwise have been spared.
There is not one. I have looked hard. I keep an evidence base of sixty-three scientific studies and sources on this question, and it is not a list of papers that agree with me. Seven of them are the sources balanced trainers cite in defense of the tools. I read every one. None of them shows those three things. The two controlled studies that tested the question head to head, using trainers nominated by the collar industry’s own trade body, found that the collar added nothing the same trainers could not get without it, and added stress the dogs did not need.
On the other side sit 169 organizations on five continents: veterinary associations, veterinary behavior specialists, welfare charities, the two bodies that accredit guide and assistance dog programs worldwide, trainer associations, schools, kennel clubs, a national veterinary authority. Every one of them is on record against pain-based training, with a document you can read. There is no comparable list on the other side. There is not a short list. There is nothing.
And none of it matters to the person holding the remote.
That is what this article is about. Not the evidence. The evidence has been settled for years. The puzzle is why the most thoroughly documented consensus this profession has ever produced bounces off the people it is aimed at, and why it bounces off for reasons that have nothing to do with the quality of the science. I know this from the inside. I spent decades on the other side of it, and I know exactly what the science was up against in me.
Here is the whole argument, in case you read nothing else.
The collar works on the dog. Everyone agrees on that. What almost nobody says out loud is that the collar also works on the trainer. Every press of the button that stops a dog cold is a consequence delivered to the trainer’s hand, instantly, in front of a client who has been struggling for months. The trainer’s behavior is being reinforced in exactly the way he thinks he is reinforcing the dog’s, and on the schedule that learning science identifies as the hardest to extinguish. The costs of the tool arrive on a different schedule entirely: later, spread out, easy to blame on the dog, and usually somewhere the trainer never sees. So he experiences a career of confirmation and never once experiences the harm as feedback. A person in that position does not need to be stupid or cruel to be unreachable. He only needs to be a mammal with a nervous system, which is the one thing he and the dog have in common.
That is the wall the science keeps hitting. It is not made of ignorance. It is made of reinforcement.
The concession
Nobody says punishment does not work
Let me clear the straw man off the table, because balanced trainers love to fight it.
No credible force-free professional claims punishment cannot change behavior. Positive punishment decreases the behavior it follows. Negative reinforcement strengthens whatever behavior ends the discomfort. That is the first week of any course on operant conditioning, and it is exactly why the tools sell. A dog that lunges and gets shocked will often lunge less. A dog that pulls into a prong collar will often pull less. If the tools did not do this, nobody would buy them.
So whether it works was never the question. The question, the way any clinician in any field would ask it, is this: Was it necessary? Did it produce a better outcome than the safer alternative? What did it cost the patient? A surgeon who reaches for the riskier procedure when the safer one gets equal or better results is not being decisive. He is being negligent. Medicine, nursing, and pharmacology all live by that standard. Dog training is the profession that decided it did not have to.
Put the three questions to the collar.
Was it necessary? No. Cooper and colleagues (2014) took sixty-three pet dogs referred for recall and chasing problems, the exact problems the remote collar is sold for, and split them among trainers nominated by the Electronic Collar Manufacturers Association using the collar, the same trainers working without it, and reward-based trainers. The collar produced no better outcomes than the same trainers got with it switched off, and the collar dogs showed more stress during training: tense posture, yawning, panting. China, Mills, and Cooper (2020) went back to the data and asked the efficiency question directly. The reward-based group won: faster response to the sit cue, fewer signals needed, faster overall progress. The industry chose its own experts. Its own experts could not make the tool beat its absence.
Did it produce a better outcome? No. Ziv (2017) reviewed seventeen studies and found no evidence that positive punishment is more effective than positive reinforcement, and some evidence the reverse is true. Blackwell and colleagues (2012) surveyed 3,897 pet guardians in the United Kingdom; the people using electronic collars reported less training success, not more. Hiby, Rooney, and Bradshaw (2004) found reward-based methods associated with higher obedience and punishment associated with more problem behavior. That pattern has held for twenty years.
What did it cost? This is where the literature is deepest.
What it cost the dog
Dogs trained with aversive methods show more stress behavior and higher cortisol during training and a more pessimistic outlook outside it (Vieira de Castro et al., 2020). Dogs whose guardians use two or more aversive methods test measurably more pessimistic, on a validated measure of underlying emotional state (Casey et al., 2021). Aversive training goes with weaker attachment to the pet guardian (Vieira de Castro et al., 2019), less gaze toward the handler and more stress signals during training (Deldalle and Gaunet, 2014), poorer learning on a novel task (Rooney and Cowan, 2011), and higher odds of aggression toward family members (Casey et al., 2014). Herron, Shofer, and Reisner (2009) found that confrontational techniques provoked aggression in a large share of the dogs they were used on. Blackwell and colleagues (2008) found the highest aggression scores in dogs whose guardians mixed rewards with punishment, which is the exact recipe the word balanced describes. Schilder and van der Borg (2004) found that shock-trained dogs showed fear and stress in the training context even when no shock was delivered. The dog had learned that the trainer, the place, and the commands predicted pain.
Then the equipment. Lines, van Driel, and Cooper (2013) tested thirteen commercial electronic collars. Energy at the maximum setting varied eighty-seven-fold between models, the median spread across a single collar’s own dial was eighty-one-fold, two of the thirteen new units had manufacturing faults, and none of it was disclosed at the point of sale. Low level is a number on a dial, not a fact about a dog’s neck. Every collar type tested by Carter, McNally, and Roshier (2020) delivered pressure to a simulated neck that the authors judged too high to rule out injury under a pull. Collar pressure raises the pressure inside the eye where a harness does not (Pauli et al., 2006). A one-year-old German Shepherd lifted off the ground by a choke chain as a punishment suffered ischemic brain injury and was euthanized (Grohmann et al., 2013).
Not necessary. Not better. Not free.
And notice the shape of the defense you will hear next, because it collapses on contact. Either the tool is aversive, in which case it carries the costs above, or it is not aversive, in which case it is not what changed the behavior. Calling the shock a tap, a stim, or a communication does not create a third option. If the dog did not mind it, the dog would not stop.
The evidence
What is actually on the list
I want to be exact about the number, because exactness is the point of this article and the other side will not be exact for me.
The evidence base is sixty-three scientific studies and sources. Thirty-nine are original studies. The rest are the reviews, the mechanism science, the foundational papers, and the papers the other side cites and argues over. All of them are listed in full at the end, and each one is profiled, with its design, findings, and limits, in the Studies Playbook on this site. They are not sixty-three independent studies reaching the same verdict, and I have never claimed they were.
Sixty-three scientific studies and sources, counted honestly
- Eighteen empirical studies of dogs and training methods: the controlled trials, the direct observational studies, the population surveys, and the affective-state studies that measure what a dog feels after the session is over.
- Five reviews and syntheses of that literature, including the review that underpins the position statement of the European Society of Veterinary Clinical Ethology.
- Six on the physical mechanics of the equipment: neck pressure, intraocular pressure, electrical output, tracheal collapse, and one fatal case report.
- Sixteen on the pain, stress, threat, and avoidance science that explains why the tools work and what that mechanism does to a nervous system over time.
- Five foundational works of learning theory and welfare assessment.
- Three that trace the origin and retraction of the dominance idea, including two by the wolf biologist who popularized the term alpha and then spent years trying to take it back.
- Ten that are the contested study, the three papers that argue over it, and the six sources balanced trainers cite.
I put those last ten on the list on purpose. Read them.
Salgirli and colleagues (2012) compared an electronic collar, a pinch collar, and a quitting signal in forty-two Belgian Malinois police dogs. No reward-based group. A study that ranks three aversive methods against each other cannot tell you whether any of them beats the alternative that has none. Steiss and colleagues (2007) measured cortisol in twenty-four kennel dogs wearing automatic bark collars: one blunt measure, not pet dogs, no trainer holding a remote. Schalke and colleagues (2007) tested electronic collars under different timing conditions, found welfare cost in every group, worst with poor timing, and concluded that because good timing cannot be guaranteed in real use, the collars should not be approved for general use. Proponents cite the sub-finding and skip the conclusion. Christiansen and colleagues (2001) followed 114 hunting dogs through sheep-aversion testing with welfare measures thin enough that the authors recommended the device only for preventing livestock attacks, paired with positive reinforcement. Tortora (1983) used a complex multi-stage protocol that opened with positive reinforcement, and his own third experiment found that simply shocking aggression produced only slight decreases. Lindsay (2005) is a textbook chapter: an author’s opinion, not a study.
Johnson and Wynne (2024) is the study balanced trainers had waited forty years for, and the one they wave at every argument. It compared methods for stopping dogs from chasing a lure and reported an efficacy result for the collar under its protocol. It has since been challenged in the peer-reviewed literature by Bastos, Warren, and Krupenye (2025), who disputed whether the design could support the conclusion drawn from it, and in my own methodological critique on SSRN (Bangura, 2025). The authors replied in 2025. In my reading, the concerns stand. Even taken at face value, the study shows narrow efficacy under one protocol, run by the people who designed it. It does not show necessity. It does not show welfare neutrality. It does not show that the collar beats reward-based training in anyone else’s hands.
So here is the honest accounting. Eighteen empirical studies of dogs, five reviews, six equipment papers, sixteen mechanism papers, and eight foundational and historical works converge on one conclusion from different countries, laboratories, dog populations, and methods. Against them: one contested study and six proponent sources, four of which do not even test the question. I did not hide them. I put them on the list.
That is what an evidence base looks like when someone is not afraid of it.
The consensus
169 organizations, and the list on the other side
The organizations are listed in full at the end as well. Here is what that list is and is not, because I built it.
An organization is on it only where there is primary-source evidence of its position: a published position statement, a code of ethics or conduct, membership or certification rules that bind, a formal coalition endorsement, legislative support, or a curriculum that excludes aversive methods. Marketing words did not qualify. Positive, humane, and modern did not qualify. Organizations that permit shock, prong, or choke collars under any label, including the last-resort label, are not on it. The list is conservative on purpose. I want it to survive fact-checking by people who need it to be wrong.
Twenty of the 169 are veterinary and veterinary behavior bodies, and that alone should end the conversation. The Federation of Veterinarians of Europe, the Federation of European Companion Animal Veterinary Associations, the Federation of European Equine Veterinary Associations, and the World Small Animal Veterinary Association adopted a joint position in 2024 that backs positive-reinforcement training, opposes aversive techniques including electric pulse collars, and calls for regulation of training services. The American Veterinary Society of Animal Behavior’s 2021 position finds no evidence that aversive methods are necessary for training or behavior modification and says they should not be used. The American Animal Hospital Association, the British Veterinary Association, the British Small Animal Veterinary Association, the Australian Veterinary Association, the Canadian Veterinary Medical Association, the New Zealand Veterinary Association, and the European Society of Veterinary Clinical Ethology each got there independently. And the American College of Veterinary Behaviorists, which board-certifies the specialists who treat the most severe aggression cases in this country, told the American Veterinary Medical Association in a December 2025 letter that its diplomates treat the most severe aggression, reactivity, anxiety, and predatory cases without aversive equipment. The claim that severe cases require these tools is answered by the people who treat the severest cases.
Seventeen are assistance, service, therapy, search, and working-dog organizations. Assistance Dogs International and the International Guide Dog Federation, the two global accrediting bodies, issued a joint position in 2023 stating that aversive, compulsive, punishment-based, or mixed training methods are not in the best interests of dogs or clients. Those are the organizations that produce dogs on whose reliability people’s lives depend. The claim that working dogs need the collar is answered by the working-dog sector.
Forty-six are professional training and behavior associations. Forty-six more are the schools and certification programs that train practitioners. Thirty-six are welfare, humane, and rescue organizations, the people who take in the dogs after the training has failed. Four are kennel, government, and legislative bodies, including Singapore’s national veterinary authority, whose 2025 advisory says rewards-based methods should always be considered first.
Now the other question. Where is the equivalent list on the other side?
I am not aware of a single veterinary association, veterinary behavior specialty body, guide-dog accrediting body, or national welfare organization anywhere in the world with a position supporting shock, prong, or choke collars. If one existed, the balanced world has had decades to produce it. What exists is a trade group, some trainer associations whose rules permit the tools, and the manufacturers. That is the roster. When a balanced trainer tells you the science supports what he does, ask him to name the organizations that agree with him. Then watch.
The phenomenon
The wall
So that is the situation. On one side, the most convergent evidence base this profession has ever assembled and the unanimous position of every relevant expert body on earth. On the other, a few papers that do not hold, a trade group, and a great deal of confidence. If evidence decided this, it would have been decided in 2004.
Evidence does not decide it. Something else does, and I want to describe that something precisely, using the same science I use to explain a dog. It is the same science.
The collar trains the trainer
Watch what happens to the trainer, not the dog, the first time a remote collar works.
A dog that has blown off every recall for a year turns on a dime and comes running. The pet parent gasps. Something that has been a source of shame for months is fixed, visibly, in ninety seconds, by a person holding a small plastic box. That is a reinforcer. It is an immediate, salient, unmistakable consequence delivered to the trainer’s behavior of pressing the button, and it does to the trainer exactly what a piece of chicken does to a dog. The behavior that produced it gets stronger. Call it a dopamine hit if you like. Behavior analysis calls it reinforcement, and the name does not change what it does.
Look at how many reinforcers are stacked on that one moment. The unwanted behavior stops, which ends the trainer’s own discomfort in front of a watching client: negative reinforcement. The client is astonished and grateful: positive reinforcement. The client pays, refers a neighbor, leaves a review: more. The video goes up and ten thousand strangers say wow: more. Every one of these lands within seconds to hours of the button press, and immediacy is one of the most powerful variables there is in whether a consequence changes behavior. Nothing in the reward-based trainer’s day arrives that fast. The reinforcers for careful, sub-threshold, emotionally centered behavior modification are real, but they are weeks away, and they are quiet.
Now look at the schedule. The collar does not work every time. Some dogs do not stop, some clients are not impressed, some sessions go badly. So the trainer’s button pressing is reinforced intermittently, on a variable ratio, and any behavior analyst will tell you what that produces: high-rate, persistent behavior that is extraordinarily resistant to extinction. It is the schedule a slot machine runs on. A trainer whose pressing is reinforced on that schedule does not stop pressing because a study came out. He does not stop because a veterinary federation issued a paper. Those are not consequences of his behavior. They are words in a room he is not in.
I want to be very clear. I am not saying balanced trainers are stupid. I am saying their behavior is under the control of its consequences, which is the one thing about behavior everybody in this profession claims to believe. The trainer who tells a client that behavior is a function of its consequences, and then insists that his own choice of tools is pure reason, is making a claim about himself that he would never accept about a dog. The collar trained him. It trained him with impeccable timing, a rich schedule, and a decade of repetitions, and the training worked.
It worked so well that he calls it his professional judgment.
The costs arrive on a different schedule
If the harm showed up as fast as the compliance, this profession would have dropped the tools thirty years ago. It does not.
The compliance is immediate, visible, and credited to the tool. The costs are delayed, probabilistic, diffuse, and almost always credited to something else. The pessimism that Casey and Vieira de Castro measured does not announce itself in the session. It shows up as a dog who is a little flatter, a little less playful, a little less inclined to try things, months later, in a home the trainer no longer visits. The weaker attachment shows up as a dog who orients less to her people. The conditioned fear Schilder documented shows up as a dog who tenses when the collar comes out, and the trainer, if he notices, reads it as respect. The redirected bite comes six months after the last session and lands on a child, and the pet parent calls someone else, or the shelter, or the veterinarian for the last appointment. The trainer never hears about it. If he does, the explanation is already waiting: the dog was aggressive. That is why it needed the collar. The tool that produced the outcome is exonerated by the very problem it was hired to fix.
That is a broken feedback loop, and a broken feedback loop is the most reliable way there is to manufacture a confident expert who is wrong. Every trainer sees the dogs at the beginning, when the suppression is fresh and the pet parent is grateful. Almost none of them see the dogs at the end. The sample is biased in the one direction that makes the tool look flawless, and his certainty grows with every case, because the cases he sees all look like wins and the failures land on someone else’s caseload.
The specialists who take those referrals are not seeing a different population of dogs. They are seeing the same dogs, later.
Meanwhile his own learning history, thousands of button presses each followed by a dog going quiet, has taught him a lesson in the most durable way a lesson can be taught. Mowrer described the two-factor structure of avoidance learning in 1947, and it fits the human in the equation as neatly as the dog. The trainer has learned that the button ends the aversive situation of a dog behaving badly in front of a client, and he has learned to reach for it before that situation can fully develop. He avoids the discomfort of not knowing what else to do. The tool has become his safety signal. Cain (2019) and Sears and colleagues (2026) describe what happens to avoidance behavior practiced long enough: it becomes habitual, it shifts to a different brain system, and it stops responding to changes in the consequences that built it. That is a description of a rat in a shuttle box. It is also a description of a trainer with twenty years on the remote.
Confirmation bias is not a character flaw. It is what a reinforced belief looks like from the inside
Everything above happens before the trainer reads a study, and it decides what happens when he does.
A person whose behavior has been richly reinforced for a decade does not meet contrary evidence as information. He meets it as a threat, because accepting it would mean the thing he is good at, the thing he built his business and his reputation and his sense of himself on, has been hurting dogs for money the whole time. Nobody arrives at that conclusion casually. The predictable response, the one any psychologist would predict, is to reject the evidence, and rejection does not feel like rejection from the inside. It feels like scrutiny. It feels like being the one person in the room who is not fooled.
So the pattern runs like this, and if you have spent any time in these arguments you have seen it. Cooper (2014) is out because the cortisol difference was not significant, never mind that the behavioral stress measures were. China (2020) is out because it used the same data. The Portuguese studies are out because the dogs were Portuguese. Herron is out because it relied on guardian report. Casey is out because it was a survey. Schilder is out because they were working dogs. The reviews are out because they only review the studies just thrown out. Every study gets a different reason, and none of the reasons is ever applied to the studies the trainer likes. Salgirli had forty-two police dogs and no reward-based group, and it is proof. Steiss had twenty-four kennel dogs, and it is proof. Johnson and Wynne is contested in the peer-reviewed literature, and it is settled.
There is a tell, and it is the one I opened with. A person who is weighing evidence produces some. A person who is protecting a reinforcement history only ever subtracts. Ask for the study. Not the argument, not the anecdote, not the video of the happy dog running off leash, which shows a well-trained avoidance response doing exactly what avoidance responses do: the dog looks fine because the aversive is no longer being delivered. The study. Decades into this debate the balanced world has not produced one, because the study does not exist, because the finding does not exist.
The social environment makes all of this worse. Bandura showed in 1965 that we pick up behavior by watching models get reinforced for it, and the apprentice watches the mentor press the button, watches the dog stop, and watches the client pay. Nobody in that room is watching the dog’s cortisol. The seminars, the sponsorships, the trade group, the celebrity trainers, and the algorithm that rewards a dramatic before-and-after over a slow desensitization session are all reinforcing from the outside the same behavior the collar reinforces from the inside. Todd (2018), reviewing why humane methods fail to spread, named the lack of any regulation of dog trainers as a structural cause, and named something else that matters here: when professional bodies appear to disagree, the public concludes there is no consensus. There is a consensus. That is what the 169 organizations are for.
The skill gap
Pressure is easy. Skill is not.
There is a quieter cost, and the trainer pays it.
Reaching for pressure is easy. It requires almost no understanding of why the dog is doing what she is doing, because it never engages with the why. It engages with the surface. A dog lunging at another dog is a dog experiencing fear, or frustration, or a learned expectation that lunging makes the other dog go away, and the collar addresses none of that. It addresses the lunge. The lunge stops, the fear stays, and now the fear has a new association: the appearance of another dog predicts pain in the neck. That is how harm compounds, and it is why aversive methods are most dangerous in the exact cases, reactivity and aggression, where balanced trainers insist they are most needed.
Resolving that same case without pressure asks a great deal. A functional assessment: what predicts the behavior, what it does for the dog, what keeps it going. Management that stops the dog rehearsing it while the work is done. Alternative behaviors, and a dog who can regulate her own arousal. Desensitization and counterconditioning below threshold, where the dog shows no outward distress at all, not merely no lunging, so the emotional response to the trigger actually changes instead of being suppressed. Reading canine body language at a level most people never reach. And a working grasp of the dog’s reinforcement history, genetics, development, medical picture, pain, sleep, diet, and environment, because behavior is the output of a whole animal and a whole life. A practitioner who is not thinking about the whole system is not treating the dog. He is silencing her.
That skill set takes years to build and a lifetime to sharpen. The trainer who relies on pressure never builds it, because he never has to. The tool absorbs the pressure to learn. Then, having never built the skill, he looks at a severe case and concludes it cannot be done without the collar, and he is right in one narrow sense: he cannot do it without the collar.
“Some dogs need aversives” is usually a statement about the trainer’s ceiling, dressed up as a statement about the dog.
When Blackwell and colleagues (2012) looked at who uses electronic collars, the predictors they found were characteristics of the pet guardian. The tool is chosen by the human. That is the real dividing line in this profession. The aversive-based trainer is interested primarily in results, with welfare as a secondary consideration to be minimized where convenient. The force-free professional puts welfare first. We want results too, and we get them, but not at the dog’s expense, and not results of the kind the collar produces. Suppressing the outward behavior is not the result we are after. Resolving the problem is. Those are different goals, they take different skills, and they produce different dogs.
A crossover trainer
I know the wall from the inside
I have trained dogs for more than fifty years, thirty-six of them professionally, and for decades of that time I was a balanced trainer. I used the tools. I taught with them. I felt everything in this article from the inside: the hit when a dog that has defied everyone for a year turns and comes on the first press, the client’s face, the certainty. I built years of work on that certainty, and I told myself the same things about welfare that balanced trainers tell themselves now. I was not lying. I was reinforced, and I could not see it, because nobody can see the contingency they are standing inside.
Crossing over was not a moment of insight. It was a long, uncomfortable extinction. The old reinforcer was gone and the new one had not arrived, because the reinforcers for force-free work with serious cases come slowly, and they come from the dog, not the crowd. I had to become a much better trainer than I had been, and I had to sit with what I had done before I became one. I do not say this to be absolved. I say it because I have never seen a balanced trainer argued out of the tools, and I have seen many reinforced out: by the slow accumulation of dogs they could not help, by a case that went wrong in a way they could not explain away, by a veterinarian who stopped referring. The evidence was available to me for years before I could read it. That is the wall. I have stood on both sides of it.
The call-out
Why I am calling this out
I am not writing this to be understanding. I am writing it because the situation is indefensible and the profession keeps defending it.
A pet parent who hires a balanced trainer is told, nearly every time, that the tools are safe, that the science supports them, that positive-only trainers are ideologues, and that the dog will be fine. Every one of those claims is false, and the person making them has no study to point to. The pet parent cannot know that. The pet parent is trusting a professional, and the professional is repeating what the collar taught him. The last-resort story does not survive the data either: when Masson and colleagues (2018b) surveyed 1,251 people in France, 71.8 percent of collar users had never had professional advice, three in four had tried two or fewer alternatives first, and 7 percent of the dogs had physical wounds. The dog, who cannot consent and cannot leave, pays the entire bill: the stress in the session, the pessimism outside it, the weakened bond, the higher odds of aggression, the pain in the neck that a dial setting calls mild. And when the bill comes due, the dog is blamed for it.
We have sixty-three scientific studies and sources. We have 169 organizations on five continents. We have twenty-seven jurisdictions that have legislated against these tools, sixteen years of Welsh regulatory experience, and no published peer-reviewed study attributing public-safety harm to any of those bans. We have the working-dog sector, the guide-dog sector, and the specialists who treat the worst aggression on earth all doing the work without pressure. And we have a marketplace in which none of it matters.
The marketplace is run by reinforcement, and reinforcement does not read.
That is why I no longer believe education alone will finish this. Education works on people who are open to evidence, and I have just spent several thousand words explaining why these people are not, through no failure of intelligence and no excess of malice, but because the tool got to them first. There is one thing a variable-ratio schedule cannot survive: the removal of the reinforcer. Take the remote out of the marketplace and the trainer’s hand has nothing to press. That is a law, not a lecture. It is why I work with the International Canine Legislative Action Committee, and why I ask every professional who believes in force-free training to do the same. The petition for a global ban on aversive training tools and methods is the first step.
For pet parents
If you are a pet parent
Ask for the study
You are not asking too much. You are asking the question every other profession answers before it touches a patient.
- Ask for one peer-reviewed study showing that the collar gets better results than reward-based training without a welfare cost. Then hand the trainer this article and ask him to name the veterinary bodies that agree with him.
- Apply the only test that matters. If a tool works because the dog does not like it, it is aversive. If the dog does not mind it, it is not doing anything. There is no third option, whatever the tool is called.
- If your dog already has a bite history, a fear problem, or a reactivity problem, know that these tools are most dangerous in exactly those cases, and that the people who treat those cases at the highest level in the world do not use them.
Common questions
What people ask me about the science and the trainers who ignore it
Q.Is there a peer-reviewed study showing that shock, prong, or choke collars work better than reward-based training?
No. The two controlled studies that tested the question head to head, using trainers nominated by the electronic collar industry, found that the collar produced no better outcomes than the same trainers achieved without it, and that reward-based training was the more efficient method. A 2017 review of seventeen studies found no evidence that punishment is more effective than reinforcement. The studies balanced trainers cite in defense of the tools, Salgirli, Steiss, Schalke, Tortora, Christiansen, and Johnson and Wynne, either compare one aversive tool with another, use small kennel or police-dog samples, report welfare costs their own authors flagged, or are contested in the peer-reviewed literature. None shows a tool that is more effective, more efficient, and free of welfare cost.
Q.What does it mean that the collar trains the trainer?
Every time a button press makes a dog stop, the trainer gets an immediate consequence: the unwanted behavior ends, the client is impressed, the client pays. Those are reinforcers, and they strengthen the behavior of reaching for the tool exactly as a treat strengthens a behavior in a dog. Because the collar does not work every time, the reinforcement is intermittent, which is the schedule that makes behavior most resistant to change. The trainer’s choice of tools is shaped by that history, not by the research, which is why the research does not move him.
Q.If nobody denies that punishment changes behavior, why not use it?
Because working is not the standard. The clinical standard in every field that touches a living body is whether the intervention was necessary, whether it produced a better outcome than the safer alternative, and what it cost the patient. Aversive tools fail all three tests: controlled studies show no advantage over reward-based training, and the welfare research documents more stress, more pessimism, weaker attachment, and higher odds of aggression. Choosing the riskier intervention when a safer one works as well or better is not decisiveness. It is negligence.
Q.How many organizations have taken a position against aversive dog training?
At least 169, in six categories, on five continents, each with primary-source evidence such as a position statement, a code of ethics, certification rules, a coalition endorsement, legislative support, or a curriculum that excludes aversive methods. They include twenty veterinary and veterinary behavior organizations, the two global accrediting bodies for guide and assistance dogs, forty-six professional training and behavior associations, forty-six education and certification programs, thirty-six welfare organizations, and four kennel, government, and legislative bodies. There is no comparable list on the other side, and I am not aware of a single veterinary association anywhere with a position supporting shock, prong, or choke collars.
Q.Why do balanced trainers dismiss every study?
Because accepting the evidence would mean accepting that the method they built their businesses and reputations on has been hurting dogs, and a mind protects itself against that conclusion. The pattern is predictable: each study is dismissed for a different reason, the same standards are never applied to the studies they like, and no study of their own is ever produced. That last part is the tell. A person weighing evidence produces some. A person protecting a reinforcement history only subtracts.
The organizations
The professional and institutional consensus: 169 organizations
An organization appears here only where there is primary-source evidence of its position: a published position statement, a code of ethics or conduct, membership or certification rules, a formal coalition endorsement, legislative support, or a curriculum that excludes aversive methods. Marketing language such as positive, humane, or modern does not qualify on its own. Organizations that permit shock, prong, or choke collars, or intentional positive punishment, under any label, are not listed. A dagger (†) marks an organization listed by the Initiative for Force-Free Dog Training as a supporter of its position paper and code of conduct, as checked on September 15, 2026. Two entries are equine bodies and two are allied-practitioner bodies, and they are labeled as such.
Veterinary and veterinary behavior organizations (20)
- American Veterinary Society of Animal Behavior (AVSAB), United States
- American College of Veterinary Behaviorists (ACVB), United States
- American Animal Hospital Association (AAHA), United States
- Australian Veterinary Association (AVA), Australia
- Canadian Veterinary Medical Association (CVMA), Canada
- British Small Animal Veterinary Association (BSAVA), United Kingdom
- British Veterinary Association (BVA), United Kingdom
- New Zealand Veterinary Association (NZVA), New Zealand
- Singapore Veterinary Association (SVA), Singapore
- European Society of Veterinary Clinical Ethology (ESVCE), Europe
- Federation of Veterinarians of Europe (FVE), Europe
- Federation of European Companion Animal Veterinary Associations (FECAVA), Europe
- World Small Animal Veterinary Association (WSAVA), international
- Federation of European Equine Veterinary Associations (FEEVA), Europe (equine)
- Fear Free, United States, with international certification
- Swiss Veterinary Society for Animal Protection (STVT), Switzerland †
- Swiss Veterinary Society for Behavioural Medicine (STVV), Switzerland †
- Certodog, Stiftung für das Wohl des Hundes, Switzerland †
- Berufsverband der TierheilpraktikerInnen Schweiz (BTS), Switzerland (allied practitioners) †
- EGCBT Schweiz, European Guild of Canine Bowen Therapists, Switzerland (allied practitioners) †
Professional dog training and behavior associations (46)
- Association for Professional Dog Training International (APDT International), United States, international membership
- Association of Pet Dog Trainers UK (APDT UK), United Kingdom
- Association of Pet Dog Trainers Australia, Australia
- Association of Pet Dog Trainers New Zealand (APDTNZ), New Zealand
- Association of Pet Dog Trainers Ireland, Ireland
- International Association of Animal Behavior Consultants (IAABC), United States, international membership
- Animal Behaviour and Training Council (ABTC), United Kingdom
- UK Dog Behaviour and Training Charter, United Kingdom
- Initiative for Force-Free Dog Training (IFD), Switzerland, international reach
- Pet Professional Guild (PPG), United States, international membership †
- Pet Professional Guild Australia (PPGA), Australia
- Institute of Modern Dog Trainers (IMDT), United Kingdom
- International Canine Behaviourists (ICB), United Kingdom
- Association of INTODogs, United Kingdom
- COAPE Association of Pet Behaviourists and Trainers (CAPBT), United Kingdom
- COAPE Association of Behaviourists and Trainers International (CABTi), international
- International Companion Animal Network (ICAN), international
- International Institute for Canine Ethics (IICE)
- The Canine Behaviour and Training Society (TCBTS), United Kingdom
- Professional Association of Canine Trainers (PACT), United Kingdom
- Pet Professional Network (PPN)
- Association of Pet Behaviour Counsellors (APBC), United Kingdom
- Fellowship of Animal Behaviour Clinicians (FABC), United Kingdom
- British and Irish Association of Zoos and Aquariums (BIAZA), United Kingdom and Ireland
- Pet Dog Trainers of Europe (PDTE), Europe †
- IBH, Internationaler Berufsverband der Hundetrainer/innen, Germany †
- ÖBDH, Österreichischer Berufsverband der Hundeerzieher, -trainer und -verhaltensberater, Austria †
- VDTT, Berufsverband der Tierverhaltensberater und -trainer, Germany †
- VÖHT, Vereinigung Österreichischer HundeverhaltensTrainerInnen, Austria †
- SVH StresstrainerInnen Hund †
- SKG, Schweizerische Kynologische Gesellschaft, Switzerland †
- Kennel Union of Southern Africa (KUSA), South Africa
- Professional Dog Businesses UK, United Kingdom †
- Force Free Oregon, United States †
- Force Free Trainers of Wisconsin (FFTW), United States
- Alliance of Force-Free Animal Professionals
- Dog Scouts of America (DSA), United States
- Dog Welfare Alliance
- International Positive Dog Training Association (IPDTA)
- Canadian Association of Professional Dog Trainers (CAPDT), Canada
- Animal Behaviour Consultants of Southern Africa (ABCSA), South Africa
- MFEC, Mouvement professionnel francophone des éducateurs de chiens de compagnie
- SECEP, Syndicat des éducateurs comportementalistes en positif, France
- Chien en Mouvement
- Collectif Pausitif
- Association of Animal-Assisted Intervention Professionals (AAAIP)
Dog training education, certification, and professional development (46)
- Karen Pryor Academy (KPA), United States
- The Academy for Dog Trainers, United States
- Victoria Stilwell Academy / Positively, United States
- Grisha Stewart Academy, United States
- Science Matters Academy of Animal Behavior
- Academy of Pet Careers, United States
- Animal Training Academy
- Canine Behavior College
- Carefree Companion
- Good Dog Academy
- Peaceable Paws, United States
- The Phenix Advocacy Center for +R Canine Professionals, United States
- Understand Horses (equine)
- Do No Harm Dog Training and Behavior
- International School for Canine Psychology and Behaviour (ISCP), United Kingdom, international distance learning
- College of Scent Dogs, United Kingdom
- Puppy School, United Kingdom
- Gundog Trainers Academy, United Kingdom
- Natural Animal Centre (NAC)
- The Dog Trainer School
- Animal Centred Education (ACE), United Kingdom
- Delta Institute, Australia
- Nordic Education Centre for Dog Trainers, Nordic countries
- Canis Hundeskole, Norway
- GoodDog Norway / GoodDog Academy, Norway
- BHARCS Academy of Canine Behaviour and Ethology, India
- PUPP Institute
- Animal Learn, Germany †
- AggressiveDog, United States †
- Clickerzentrum, Switzerland †
- cumcane familiari, Switzerland †
- Dog Academy Rakkaat Haukut / Dog Oriented Institute, Finland †
- Dog-ibox †
- Easy Dogs †
- Hey Fiffi †
- HundeUni, Science Meets Practice †
- Hundeherz, Switzerland †
- I.E.T. Institut für angewandte Ethologie und Tierpsychologie, Switzerland †
- Leben mit Hunden †
- Lernwelt Hund, Germany †
- NF Footstep, Switzerland †
- Proactive Animal Consulting †
- Sprich Hund!, Germany †
- SzTVT, Schulungszentrum für Tierverhaltenstherapie und Erziehungsberatung, Austria †
- ZfTT Zentrum für Tiertherapeuten, Germany †
- rundum.dog †
Animal welfare, humane, rescue, and advocacy organizations (36)
- BC SPCA, Canada
- Montreal SPCA, Canada
- Toronto Humane Society, Canada
- Ottawa Humane Society, Canada
- Winnipeg Humane Society, Canada
- Calgary Humane Society, Canada
- Humane Canada, Canada
- ASPCA, United States
- Humane World for Animals (formerly the Humane Society of the United States), United States, international
- American Humane Society, United States
- Best Friends Animal Society, United States
- Humane Society of Sonoma County, United States
- RSPCA Australia, Australia
- RSPCA South Australia, Australia
- RSPCA Victoria, Australia
- RSPCA New South Wales, Australia
- RSPCA (England and Wales), United Kingdom
- Scottish SPCA, Scotland
- Blue Cross, United Kingdom
- PDSA, United Kingdom
- Dogs Trust, United Kingdom
- Battersea Dogs and Cats Home, United Kingdom
- SPCA New Zealand, New Zealand
- SPCA Singapore, Singapore
- SPCA Hong Kong, Hong Kong
- Hong Kong Dog Rescue, Hong Kong
- Cape of Good Hope SPCA, South Africa
- FOUR PAWS International, international, headquartered in Austria
- TIR, Stiftung für das Tier im Recht, Switzerland †
- Kompanima, Switzerland †
- Schaffhauser Tierschutz, Switzerland †
- Susy Utzinger Stiftung für Tierschutz, Switzerland †
- Stiftung TierRettungsDienst, Switzerland †
- Zürcher Tierschutz, Switzerland †
- Animal Rescue, Canton Schaffhausen and Thurgau, Switzerland †
- DAS TIER + WIR, Stiftung für Ethik im Unterricht, Switzerland †
Assistance, service, therapy, search, and working-dog organizations (17)
- Assistance Dogs International (ADI), international
- International Guide Dog Federation (IGDF), international
- Guide Dogs UK, United Kingdom
- Guide Dogs Victoria, Australia
- Guide Dogs Queensland, Australia
- NEADS Service Dogs, United States
- Atlas Assistance Dogs, United States
- Dog A.I.D., Assistance in Disability, United Kingdom
- Pet Partners, United States
- Arbeitsgemeinschaft Mantrailing, Rescue and Therapy, Germany †
- Search and Recovery Canine Network †
- Mantrailing Basel, Switzerland †
- Mantrailing Plus, Switzerland †
- Ausbildungszentrum für tiergestützte Therapie im Rheinland-Pfalz, Germany †
- Fellverliebt, Training Centre for Therapy Dog Teams †
- Helferhund, Switzerland †
- TellingtonTTouch Interessens- und Berufsverband Schweiz, Switzerland †
Legislative, government, and kennel bodies (4)
- International Canine Legislative Action Committee (ICLAC), international
- The Royal Kennel Club, United Kingdom
- Animal and Veterinary Service / National Parks Board, Singapore
- Norsk Kennel Klub (NKK), Norway
The evidence base: sixty-three scientific studies and sources
The sources are grouped by what each one is, so that the count means what it says. The peer-reviewed empirical studies of dogs come first. The mechanism science, the foundational works, and the historical papers follow. The final group holds the contested study, the papers arguing over it, and the sources balanced trainers cite; they are on the list because an evidence base that hides the other side’s papers is not one. DOIs are linked where available, and every entry is profiled in the Studies Playbook.
Empirical studies of dogs and training methods (18)
Controlled trials, direct observational studies, population surveys, and affective-state studies of dogs under different training methods.
- Cooper, J. J., Cracknell, N., Hardiman, J., Wright, H., & Mills, D. (2014). The welfare consequences and efficacy of training pet dogs with remote electronic training collars in comparison to reward based training. PLOS ONE, 9(9), e102722. https://doi.org/10.1371/journal.pone.0102722
- China, L., Mills, D. S., & Cooper, J. J. (2020). Efficacy of dog training with and without remote electronic collars vs. a focus on positive reinforcement. Frontiers in Veterinary Science, 7, 508. https://doi.org/10.3389/fvets.2020.00508
- Schilder, M. B. H., & van der Borg, J. A. M. (2004). Training dogs with help of the shock collar: Short and long term behavioural effects. Applied Animal Behaviour Science, 85(3-4), 319-334. https://doi.org/10.1016/j.applanim.2003.10.004
- Deldalle, S., & Gaunet, F. (2014). Effects of 2 training methods on stress-related behaviors of the dog (Canis familiaris) and on the dog-owner relationship. Journal of Veterinary Behavior, 9(2), 58-65. https://doi.org/10.1016/j.jveb.2013.11.004
- Rooney, N. J., & Cowan, S. (2011). Training methods and owner-dog interactions: Links with dog behaviour and learning ability. Applied Animal Behaviour Science, 132(3-4), 169-177. https://doi.org/10.1016/j.applanim.2011.03.007
- Haverbeke, A., Laporte, B., Depiereux, E., Giffroy, J.-M., & Diederich, C. (2008). Training methods of military dog handlers and their effects on the team’s performances. Applied Animal Behaviour Science, 113(1-3), 110-122.
- Herron, M. E., Shofer, F. S., & Reisner, I. R. (2009). Survey of the use and outcome of confrontational and non-confrontational training methods in client-owned dogs showing undesired behaviors. Applied Animal Behaviour Science, 117(1-2), 47-54. https://doi.org/10.1016/j.applanim.2008.12.011
- Hiby, E. F., Rooney, N. J., & Bradshaw, J. W. S. (2004). Dog training methods: Their use, effectiveness and interaction with behaviour and welfare. Animal Welfare, 13(1), 63-69. https://doi.org/10.1017/S0962728600026683
- Blackwell, E. J., Twells, C., Seawright, A., & Casey, R. A. (2008). The relationship between training methods and the occurrence of behavior problems, as reported by owners, in a population of domestic dogs. Journal of Veterinary Behavior, 3(5), 207-217. https://doi.org/10.1016/j.jveb.2007.10.008
- Arhant, C., Bubna-Littitz, H., Bartels, A., Futschik, A., & Troxler, J. (2010). Behaviour of smaller and larger dogs: Effects of training methods, inconsistency of owner behaviour and level of engagement in activities with the dog. Applied Animal Behaviour Science, 123(3-4), 131-142. https://doi.org/10.1016/j.applanim.2010.01.003
- Blackwell, E. J., Bolster, C., Richards, G., Loftus, B. A., & Casey, R. A. (2012). The use of electronic collars for training domestic dogs: Estimated prevalence, reasons and risk factors for use, and owner perceived success as compared to other training methods. BMC Veterinary Research, 8, 93. https://doi.org/10.1186/1746-6148-8-93
- Casey, R. A., Loftus, B., Bolster, C., Richards, G. J., & Blackwell, E. J. (2013). Inter-dog aggression in a UK owner survey: Prevalence, co-occurrence in different contexts and risk factors. Veterinary Record, 172(5), 127.
- Casey, R. A., Loftus, B., Bolster, C., Richards, G. J., & Blackwell, E. J. (2014). Human directed aggression in domestic dogs (Canis familiaris): Occurrence in different contexts and risk factors. Applied Animal Behaviour Science, 152, 52-63. https://doi.org/10.1016/j.applanim.2013.12.003
- Masson, S., Nigron, I., & Gaultier, E. (2018b). Questionnaire survey on the use of different e-collar types in France in everyday life with a view to providing recommendations for possible future regulations. Journal of Veterinary Behavior, 26, 48-60. https://doi.org/10.1016/j.jveb.2018.05.004
- Starinsky, N. S., Lord, L. K., & Herron, M. E. (2017). Escape rates and biting histories of dogs confined to their owner’s property through the use of various containment methods. Journal of the American Veterinary Medical Association, 250(3), 297-302. https://doi.org/10.2460/javma.250.3.297
- Vieira de Castro, A. C., Barrett, J., de Sousa, L., & Olsson, I. A. S. (2019). Carrots versus sticks: The relationship between training methods and dog-owner attachment. Applied Animal Behaviour Science, 219, 104831. https://doi.org/10.1016/j.applanim.2019.104831
- Vieira de Castro, A. C., Fuchs, D., Morello, G. M., Pastur, S., de Sousa, L., & Olsson, I. A. S. (2020). Does training method matter? Evidence for the negative impact of aversive-based methods on companion dog welfare. PLOS ONE, 15(12), e0225023. https://doi.org/10.1371/journal.pone.0225023
- Casey, R. A., Naj-Oleari, M., Campbell, S., Mendl, M., & Blackwell, E. J. (2021). Dogs are more pessimistic if their owners use two or more aversive training methods. Scientific Reports, 11, 19023. https://doi.org/10.1038/s41598-021-97743-0
Reviews and syntheses of the training-methods literature (5)
- Masson, S., de la Vega, S., Gazzano, A., Mariti, C., Pereira, G. D. G., Halsberghe, C., Leyvraz, A. M., McPeake, K., & Schoening, B. (2018a). Electronic training devices: Discussion on the pros and cons of their use in dogs as a basis for the position statement of the European Society of Veterinary Clinical Ethology. Journal of Veterinary Behavior, 25, 71-75. https://doi.org/10.1016/j.jveb.2018.02.006
- Ziv, G. (2017). The effects of using aversive training methods in dogs: A review. Journal of Veterinary Behavior, 19, 50-60. https://doi.org/10.1016/j.jveb.2017.02.004
- Fernandes, J. G., Olsson, I. A. S., & Vieira de Castro, A. C. (2017). Do aversive-based training methods actually compromise dog welfare? A literature review. Applied Animal Behaviour Science, 196, 1-12. https://doi.org/10.1016/j.applanim.2017.07.001
- Todd, Z. (2018). Barriers to the adoption of humane dog training methods. Journal of Veterinary Behavior, 25, 28-34.
- Makowska, I. J. (2018). Review of dog training methods: Welfare, learning ability, and current standards. BC SPCA. Non-peer-reviewed professional review.
Equipment mechanics and physical injury (6)
Neck pressure, intraocular pressure, electrical output, tracheal collapse, and a fatal case report.
- Pauli, A. M., Bentley, E., Diehl, K. A., & Miller, P. E. (2006). Effects of the application of neck pressure by a collar or harness on intraocular pressure in dogs. Journal of the American Animal Hospital Association, 42(3), 207-211. https://doi.org/10.5326/0420207
- Carter, A., McNally, D., & Roshier, A. (2020). Canine collars: An investigation of collar type and the forces applied to a simulated neck model. Veterinary Record, 187(7), e52. https://doi.org/10.1136/vr.105681
- Hunter, A., Blake, S., & De Godoy, R. F. (2019). Pressure and force on the canine neck when exercised using a collar and leash. Veterinary and Animal Science, 8, 100082. https://doi.org/10.1016/j.vas.2019.100082
- Grohmann, K., Dickomeit, M. J., Schmidt, M. J., & Kramer, M. (2013). Severe brain damage after punitive training technique with a choke chain collar in a German shepherd dog. Journal of Veterinary Behavior, 8(3), 180-184. https://doi.org/10.1016/j.jveb.2013.01.002
- Rozanski, E. (2022). Tracheal collapse. Today’s Veterinary Practice, February 2022. https://todaysveterinarypractice.com/respiratory-medicine/tracheal-collapse/
- Lines, J. A., van Driel, K., & Cooper, J. J. (2013). Characteristics of electronic training collars for dogs. Veterinary Record, 172(11), 288. https://doi.org/10.1136/vr.101144
Pain, stress, threat, and avoidance science (16)
Mechanism evidence from the mammalian literature on nociception, threat circuitry, stressor controllability, chronic stress, and avoidance learning.
- Dubin, A. E., & Patapoutian, A. (2010). Nociceptors: The sensors of the pain pathway. Journal of Clinical Investigation, 120(11), 3760-3772. https://doi.org/10.1172/JCI42843
- Raja, S. N., et al. (2020). The revised International Association for the Study of Pain definition of pain: Concepts, challenges, and compromises. Pain, 161(9), 1976-1982. https://doi.org/10.1097/j.pain.0000000000001939
- Affolter, V. K., & Moore, P. F. (1994). Histologic features of normal canine and feline skin. Clinics in Dermatology, 12(4), 491-497. https://doi.org/10.1016/0738-081X(94)90215-1
- LeDoux, J. E. (2014). Coming to terms with fear. Proceedings of the National Academy of Sciences, 111(8), 2871-2878. https://doi.org/10.1073/pnas.1400335111
- Cain, C. K. (2019). Avoidance problems reconsidered. Current Opinion in Behavioral Sciences, 26, 9-17. https://doi.org/10.1016/j.cobeha.2018.09.002
- Maier, S. F., & Watkins, L. R. (2005). Stressor controllability and learned helplessness: The roles of the dorsal raphe nucleus, serotonin, and corticotropin-releasing factor. Neuroscience and Biobehavioral Reviews, 29(4-5), 829-841. https://doi.org/10.1016/j.neubiorev.2005.03.021
- Limbachia, C., Morrow, K., Khibovska, A., Meyer, C., Padmala, S., & Pessoa, L. (2021). Controllability over stressor decreases responses in key threat-related brain areas. Communications Biology, 4, 42. https://doi.org/10.1038/s42003-020-01537-5
- Wood, K. H., Ver Hoef, L. W., & Knight, D. C. (2014). The amygdala mediates the emotional modulation of threat-elicited skin conductance response. Emotion, 14(4), 693-700. https://doi.org/10.1037/a0036636
- Sears, R. M., Andrade, E. C., Samels, S. B., Laughlin, L. C., Moloney, D. M., Wilson, D. A., Alwood, M. R., Moscarello, J. M., & Cain, C. K. (2026). Devaluation of response-produced safety signals reveals circuits for goal-directed versus habitual avoidance in dorsal striatum. Nature Communications, 17, 2542. https://doi.org/10.1038/s41467-026-69119-3
- Arnsten, A. F. T. (2009). Stress signalling pathways that impair prefrontal cortex structure and function. Nature Reviews Neuroscience, 10(6), 410-422. https://doi.org/10.1038/nrn2648
- Vyas, A., Mitra, R., Shankaranarayana Rao, B. S., & Chattarji, S. (2002). Chronic stress induces contrasting patterns of dendritic remodeling in hippocampal and amygdaloid neurons. The Journal of Neuroscience, 22(15), 6810-6818. https://doi.org/10.1523/JNEUROSCI.22-15-06810.2002
- Rosenkranz, J. A., Venheim, E. R., & Padival, M. (2010). Chronic stress causes amygdala hyperexcitability in rodents. Biological Psychiatry, 67(12), 1128-1136. https://doi.org/10.1016/j.biopsych.2010.02.008
- McEwen, B. S. (2012). Brain on stress: How the social environment gets under the skin. Proceedings of the National Academy of Sciences, 109(Suppl 2), 17180-17185. https://doi.org/10.1073/pnas.1121254109
- Gillan, C. M., Morein-Zamir, S., Urcelay, G. P., Sule, A., Voon, V., Apergis-Schoute, A. M., Fineberg, N. A., Sahakian, B. J., & Robbins, T. W. (2014). Enhanced avoidance habits in obsessive-compulsive disorder. Biological Psychiatry, 75(8), 631-638. https://doi.org/10.1016/j.biopsych.2013.02.002
- Gordon, A. L., Patterson, T. K., & Knowlton, B. J. (2020). Early-life stress is associated with a preponderance of habitual responding in a novel instrumental avoidance learning paradigm. Neurobiology of Learning and Memory, 175, 107316. https://doi.org/10.1016/j.nlm.2020.107316
- Mormède, P., Andanson, S., Aupérin, B., Beerda, B., Guémené, D., Malmkvist, J., Manteca, X., Manteuffel, G., Prunet, P., van Reenen, C. G., Richard, S., & Veissier, I. (2007). Exploration of the hypothalamic-pituitary-adrenal function as a tool to evaluate animal welfare. Physiology & Behavior, 92(3), 317-339.
Foundational learning theory and welfare assessment (5)
- Mowrer, O. H. (1947). On the dual nature of learning: A re-interpretation of “conditioning” and “problem-solving.” Harvard Educational Review, 17, 102-148.
- Bandura, A. (1965). Influence of models’ reinforcement contingencies on the acquisition of imitative responses. Journal of Personality and Social Psychology, 1(6), 589-595.
- Melzack, R., & Wall, P. D. (1965). Pain mechanisms: A new theory. Science, 150(3699), 971-979.
- Thompson, R. F., & Spencer, W. A. (1966). Habituation: A model phenomenon for the study of neuronal substrates of behavior. Psychological Review, 73(1), 16-43.
- Mellor, D. J., Beausoleil, N. J., Littlewood, K. E., McLean, A. N., McGreevy, P. D., Jones, B., & Wilkins, C. (2020). The 2020 Five Domains Model: Including human-animal interactions in assessments of animal welfare. Animals, 10(10), 1870.
The origin and retraction of the dominance idea (3)
- Schenkel, R. (1947). Expression studies on wolves: Captivity observations. Behaviour, 1(2), 81-129.
- Mech, L. D. (1999). Alpha status, dominance, and division of labor in wolf packs. Canadian Journal of Zoology, 77(8), 1196-1203.
- Mech, L. D. (2008). Whatever happened to the term alpha wolf? International Wolf, 18(4), 4-8.
The contested study, the papers arguing over it, and the sources balanced trainers cite (10)
These are included on purpose and examined critically. None establishes that aversive equipment is more effective or more efficient than reward-based training without welfare cost.
- Johnson, A. C., & Wynne, C. D. L. (2024). Comparison of the efficacy and welfare of different training methods in stopping chasing behavior in dogs. Animals, 14(18), 2632. Contested; see the three entries that follow. https://doi.org/10.3390/ani14182632
- Bastos, A. P. M., Warren, E., & Krupenye, C. (2025). What evidence can validate a dog training method? Learning & Behavior, 53, 227-228. Peer-reviewed methodological critique of Johnson and Wynne (2024). https://doi.org/10.3758/s13420-024-00658-9
- Johnson, A. C., & Wynne, C. D. L. (2025). Chasing solutions: A response to Bastos et al. (2024). Learning & Behavior. Advance online publication. Authors’ reply; the methodological concerns survive it. https://doi.org/10.3758/s13420-025-00672-5
- Bangura, W. (2025). A critical evaluation of Johnson and Wynne’s (2024) methodology in Comparison of the efficacy and welfare of different training methods in stopping chasing behavior in dogs. SSRN. Publicly available methodological critique; not peer-reviewed. https://doi.org/10.2139/ssrn.5154127
- Christiansen, F. O., Bakken, M., & Braastad, B. O. (2001). Behavioural changes and aversive conditioning in hunting dogs by the second-year confrontation with domestic sheep. Applied Animal Behaviour Science, 72(2), 131-143. Field study of 114 hunting dogs; welfare measures too thin to support a welfare-benign reading. https://doi.org/10.1016/S0168-1591(00)00203-3
- Salgirli, Y., Schalke, E., Boehm, I., & Hackbarth, H. (2012). Comparison of learning effects and stress between 3 different training methods (electronic training collar, pinch collar and quitting signal) in Belgian Malinois police dogs. Revue de Médecine Vétérinaire, 163(11), 530-535. Three aversive methods compared; no reward-based group.
- Steiss, J. E., Schaffer, C., Ahmad, H. A., & Voith, V. L. (2007). Evaluation of plasma cortisol levels and behavior in dogs wearing bark control collars. Applied Animal Behaviour Science, 106(1-3), 96-106. Twenty-four kennel dogs; cortisol only. https://doi.org/10.1016/j.applanim.2006.06.018
- Schalke, E., Stichnoth, J., Ott, S., & Jones-Baade, R. (2007). Clinical signs caused by the use of electric training collars on dogs in everyday life situations. Applied Animal Behaviour Science, 105(4), 369-380. Welfare cost found in every condition; authors argued against general use. https://doi.org/10.1016/j.applanim.2006.11.002
- Tortora, D. F. (1983). Safety training: The elimination of avoidance-motivated aggression in dogs. Journal of Experimental Psychology: General, 112(2), 176-214. Uncontrolled multi-stage protocol; the paper’s own third experiment undermines the proponent reading. https://doi.org/10.1037/0096-3445.112.2.176
- Lindsay, S. R. (2005). Handbook of Applied Dog Behavior and Training, Volume 3: Procedures and Protocols. Blackwell Publishing. Textbook, not a study.
Meet Your Certified Canine Behaviorist
Will Bangura, M.S., CAB-ICB
CBCC-KA, CPDT-KA, FDM, FFCP
Arizona’s only CAB-ICB Certified Canine Behaviorist through International Canine Behaviourists, and one of only three in the United States. Will has trained dogs for more than fifty years, thirty-six of them professionally, and spent decades as a balanced trainer before crossing over to fully force-free, evidence-based practice. His work centers on severe aggression, fear, anxiety, reactivity, and complex canine behavior cases. He holds a Master of Science in Psychology and is certified in Applied Ethology, a Certified Behavior Consultant Canine and Certified Professional Dog Trainer through the CCPDT, and a Fear Free Certified Professional.
By identifying the underlying causes of aggression, anxiety, and other behavior problems and improving emotional regulation, Will helps pet parents across Phoenix and the surrounding metro area build safer, calmer, and more predictable relationships with their dogs. He is the author of Sniff to Soothe and the host of the Dog Training Today podcast.
Read Full BiographyFor your dog
If your dog has been on the other end of the remote
If you have a dog who lunges, barks, growls, guards, or has bitten, and a trainer has told you that pressure is the only option for a dog like yours, the work described in this article is the work I do every day with pet parents across the Phoenix metro area and, by video, across the country. Start with aggressive dog training in Phoenix if your dog has a bite history or is escalating, or read the science-based guide to fearful, anxious, and reactive dogs if the problem runs on fear. If you are a professional who believes in force-free training, the petition for a global ban on aversive tools and methods is the first step, and the International Canine Legislative Action Committee is where the work of turning this evidence into law is being done. Join it to support legislation that puts humane, force-free training and the welfare of the dog first.
Have a dog you are worried about? Call (602) 769-1411.
This article is educational and is not a substitute for an individualized behavior assessment. Aggression and severe behavior cases can involve safety risk and are best addressed with a qualified professional.
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