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Adolescence 6–24 months

How to choose a trainer or a class for your adolescent dog, and when you need a veterinarian instead

What a trainer does when your dog gets it wrong tells you more than any title on their website.

You have decided you need help, which is a good decision. Then you search, and 20 websites all sound equally confident.

In most places nobody has to hold a qualification to call themselves a dog trainer. The title tells you almost nothing, so judge the method instead.

The one question that sorts most of it

Ask what happens when my dog gets it wrong. A good professional will answer plainly and in detail. Vagueness there is the answer.

Reward-based methods are what is recommended for training and behaviour change, and aversive methods carry welfare and behavioural risk. That is the line we hold, and it is not a stylistic preference.

Green flags

  1. Reward-based, said plainly, and described the same way on the phone as on the website.

  2. Will tell you exactly what happens when your dog gets it wrong.

  3. Lets you observe a class before you bring your dog to one.

  4. Small classes. 6 dogs with 1 instructor is a class, 14 is an audience.

  5. Insured, and able to say so without being asked twice.

  6. Happy to say a case is outside their scope, and willing to refer you on.

  7. Sends you home with something that takes 5 minutes, not 45.

Red flags

  1. A promised or guaranteed result, or a fixed number of sessions to a fixed outcome. Nobody can know that.

  2. Balanced training used as a euphemism for prong or e-collar work.

  3. Dominance, alpha or pack-leader language, or the idea that your adolescent dog is challenging you.

  4. Refusing to say what they do to stop a behaviour, or changing the subject when you ask.

  5. No observation allowed, and no explanation of why not.

A review of aversive training methods found them associated with worse welfare outcomes and with no training advantage over reward-based methods.

Dogs trained with aversive methods have been found to show more stress-related behaviour than dogs trained with rewards.

Punishment-based approaches are also associated with fear, avoidance and defensive aggression. That last one is why this matters more than method preference.

When you need a veterinarian, not a trainer

Some of this is not a training problem. Start with your veterinary practice, and ask for a referral to a veterinary behaviourist.

  1. Aggression toward people or other dogs.

  2. Any bite, however minor it looked.

  3. Severe fear or anxiety, including panic when left alone.

  4. Sudden unexplained behaviour change, because sudden behaviour change warrants a veterinary examination.

  5. Anything that could be pain, because pain frequently presents as a change in behaviour rather than as obvious lameness.

What Halfgrown is, and is not

Halfgrown is written by an experienced dog owner, not by a qualified trainer or a veterinary professional. Everything factual here cites a published source, and you can read the citations.

A good local professional watching your actual dog, in your actual street, can see things we cannot. If you can afford 1 session, spend it on that.

Safety note

If your dog has bitten, has broken skin, or is frightening you or somebody in your household, get help now. Contact your veterinarian first and ask for a referral to a veterinary behaviourist. Manage the situation in the meantime rather than testing it.

Get help now

Today's version, in one line: ring 1 trainer and ask what happens when my dog gets it wrong, then judge the answer.

Where this comes from

  • Reward-based methods are recommended for training and behaviour change; aversive methods carry welfare and behavioural risk.

    American Veterinary Society of Animal Behavior (2021). Position Statement on Humane Dog Training.

    avsab.org

  • Review finding aversive training associated with worse welfare outcomes and no training advantage.

    Ziv, G. (2017). The effects of using aversive training methods in dogs — a review. Journal of Veterinary Behavior, 19, 50–60.

    Journal of Veterinary Behavior

  • Dogs trained with aversive methods showed more stress-related behaviour than dogs trained with rewards.

    Vieira de Castro, A. C., et al. (2020). Does training method matter? Evidence for the negative impact of aversive-based methods on companion dog welfare. PLOS ONE, 15(12).

    PLOS ONE

  • Punishment-based approaches are associated with fear, avoidance and defensive aggression.

    American Veterinary Society of Animal Behavior (2007). Position Statement on the Use of Punishment for Behavior Modification in Animals.

    avsab.org

  • Behaviour change is built with management plus reinforcement, and sudden behaviour change warrants a veterinary examination.

    American Animal Hospital Association (2015). AAHA Canine and Feline Behavior Management Guidelines.

    aaha.org

  • Pain frequently presents as a change in behaviour rather than as obvious lameness.

    American Animal Hospital Association (2022). AAHA Pain Management Guidelines for Dogs and Cats.

    aaha.org

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