Volhard Puppy Aptitude Test — How to Score and Interpret Results

Most people pick puppies the wrong way. They pick the one that comes to them first, or the one with the best markings, or — worst of all — the one they feel the most sorry for. None of those criteria predict whether that dog will succeed as a service animal, a therapy dog, or even a calm family pet. Temperament does.

The Volhard Puppy Aptitude Test (PAT) is the most widely used structured system for evaluating puppies at 7 weeks of age. Developed by Wendy and Joachim Volhard, it gives trainers and evaluators a standardized way to assess ten distinct behavioral traits before the puppy has had significant human influence. The result is a behavioral profile — not a pass/fail verdict — that tells you what kind of environment and what kind of working role that dog is suited for.

This guide walks through all ten subtests, the 1–6 scoring system, and — most importantly — how to interpret score patterns for service dog work, therapy dog work, and family placement.

Why 7 Weeks and Not Later

The Volhard PAT is designed to be administered at exactly 49 days (7 weeks) of age. This timing is not arbitrary. Research in canine developmental biology identifies this window as the point when the puppy's neurological development is sufficiently mature to assess behavioral tendencies, but before socialization experiences have significantly shaped the dog's responses.

A puppy tested at 6 weeks lacks full neurological maturity — results are less reliable. A puppy tested at 10 weeks has already been influenced by its environment, littermates, and human interactions in ways that confound the test. The 7-week window captures the dog's underlying temperament before training, socialization, and experience begin to layer on top of it.

The Scoring System: What 1 Through 6 Means

Each of the ten subtests is scored on a scale of 1 to 6. The scores are not evenly distributed across a "good to bad" spectrum — the interpretation depends on context and on which subtest is being scored. That said, the general framework is:

The Ten Volhard Subtests, Explained

The PAT evaluates ten behavioral dimensions. Each subtest isolates a specific trait. Understanding what each subtest is measuring — not just what score came out — is essential for accurate interpretation.

1. Social Attraction

The evaluator places the puppy in the center of the test area and then walks away. After a moment, the evaluator kneels a few feet away and calls to the puppy with light clapping and encouragement. The question being measured is: does this puppy seek out human contact?

A score of 1 or 2 means the puppy came immediately with tail up and may have jumped on or mouthed the evaluator — strong social drive, possibly pushy. Score 3 or 4 means the puppy came readily with tail up or neutral — ideal range for most working dogs. Score 5 means the puppy came reluctantly. Score 6 means the puppy did not come at all.

For service dog work, scores of 3–4 in social attraction are ideal. The dog needs to be reliably human-oriented without being so dominant it becomes unmanageable.

2. Following

The evaluator stands and walks normally away from the puppy without calling it. The subtest measures whether the puppy chooses to follow a human without being encouraged — a measure of natural willingness to stay connected to a handler.

Scores of 1–2 indicate the puppy followed immediately and may have gotten underfoot or nipped at the evaluator's heels — high following drive with dominant expression. Scores of 3–4 are ideal for working dogs — the puppy follows readily and stays connected. Score 5 indicates the puppy eventually followed but needed repeated encouragement. Score 6 means the puppy went its own way entirely.

A dog that scores 6 on following — one that simply doesn't track humans as relevant — is a red flag for service dog work regardless of its performance on other subtests.

3. Restraint

The evaluator gently rolls the puppy on its back and holds it there with a light hand on the chest for 30 seconds. This tests the puppy's response to having its freedom restricted — a core predictor of how the dog will respond to medical handling, grooming, and the inevitable physical constraints of working life.

Score 1: puppy struggles fiercely and bites. Score 2: puppy struggles hard but settles. Score 3: puppy struggles briefly then settles, possibly tries to make eye contact. Score 4: puppy struggles minimally then settles. Score 5: puppy does not struggle at all. Score 6: puppy freezes entirely.

Scores of 3–4 are generally ideal for working dogs. A score 5 puppy may be too submissive to handle stress confidently. A score 1–2 puppy will resist handling throughout its life and may become dangerous when restrained for veterinary care.

4. Social Dominance

The evaluator kneels beside the puppy and strokes it from head to tail for 30 seconds, observing the puppy's response to calm social interaction. This tests the puppy's acceptance of human social approach and touch from a neutral, nonthreatening posture.

Score 1: puppy jumps on, bites, or growls. Score 2: puppy jumps and paws the evaluator. Score 3: puppy accepts petting with tail up, possibly licks. Score 4: puppy rolls over and shows belly. Score 5: puppy walks away. Score 6: puppy shows no response.

For therapy dogs, scores of 3–4 are ideal — the dog accepts and enjoys human touch without resource-guarding the interaction. For service dogs that will work in dense public environments with strangers making contact, a score 3 is typically preferred over a score 4 or 5, since the dog needs confidence alongside acceptance.

5. Elevation Dominance

The evaluator picks the puppy up and cradles it off the ground, supporting it under the belly. The puppy is held elevated for 30 seconds. This tests the puppy's response to being lifted and losing control of its footing — a scenario that occurs during veterinary exams, transport, and emergencies.

Scores follow the same pattern: 1 is maximum resistance and aggression, 5–6 is complete passivity or freeze. Score 3 is ideal — the puppy wriggles briefly, then relaxes, possibly looking at the evaluator. A puppy that panics or bites when elevated (score 1–2) is a significant liability in any working role.

6. Retrieving

The evaluator crumples a piece of paper, shows it to the puppy to attract attention, and tosses it a few feet away. This tests natural retrieve drive and the dog's interest in bringing objects back to humans — a major predictor of trainability for task work.

Score 1: puppy chases, picks up, runs away with it. Score 2: puppy chases and brings it back. Score 3: puppy chases and brings it back partway. Score 4: puppy chases but doesn't pick it up. Score 5: puppy just watches. Score 6: puppy ignores it entirely.

For service dogs that will perform retrieval tasks (picking up dropped items, fetching medications, bringing objects), scores of 2–3 in this subtest are important. A score 5–6 in retrieve doesn't disqualify a dog from all service work, but it rules out tasks involving object delivery.

7. Touch Sensitivity

The evaluator presses gently between the puppy's toes with increasing pressure until the puppy pulls away, counting the seconds. The count determines the score. This measures pain sensitivity and tactile tolerance — a critical trait for dogs that will work in environments with physical demands, medical equipment, or harness wear.

Low count (score 1–2): the puppy pulled away immediately — high touch sensitivity. A dog with extreme touch sensitivity will struggle with gear, grooming, and the physical wear of working in public. High count (score 5–6): the puppy barely reacted — low touch sensitivity. These dogs handle physical work well but may not respond normally to injury, which has its own management implications.

Scores of 3–4 are ideal for service work — moderate sensitivity that enables the dog to feel and respond to stimuli without being overwhelmed by routine physical contact.

8. Sound Sensitivity

A set of metal spoons is struck together sharply near the puppy, and the puppy's response is observed. This tests acoustic startle response and recovery — one of the most important predictors of whether a dog will succeed in public access environments.

Score 1: the puppy charges at the sound source, possibly barking. Score 2: the puppy orients to the sound with curiosity, approaches. Score 3: the puppy startles, then approaches with curiosity. Score 4: the puppy startles, then retreats. Score 5: the puppy retreats and shows fear behaviors. Score 6: the puppy freezes and does not recover during the test period.

For service dogs working in airports, hospitals, crowded streets, and VA facilities, scores of 2–3 are strongly preferred. A dog that startles and recovers quickly (score 3) can work through noise environments without becoming a liability. A dog that freezes or shows fear (scores 5–6) is not appropriate for public access work.

9. Sight Sensitivity

The evaluator ties a string to a white cloth and drags it erratically across the floor in front of the puppy. This tests the puppy's response to sudden visual stimuli and novel moving objects — a proxy for how the dog will respond to unpredictable visual challenges in public (wheelchairs, shopping carts, moving vehicles, children running).

Score 1: the puppy attacks the cloth. Score 2: the puppy chases and engages actively. Score 3: the puppy looks at the cloth with curiosity and may approach. Score 4: the puppy watches but doesn't approach. Score 5: the puppy retreats. Score 6: no response.

Service dogs working in dense environments need scores of 2–4 in sight sensitivity. A dog that ignores moving visual stimuli entirely (score 6) may also fail to notice handler signals and environmental cues that are important for public access work.

10. Stability

The evaluator opens an umbrella in front of the puppy. This is the most comprehensive stressor in the test — sudden, large, visually startling, accompanied by the whoosh of the opening mechanism. It tests the puppy's overall stress tolerance and recovery capacity under novel challenge.

Score 1: the puppy attacks the umbrella. Score 2: the puppy startles and recovers immediately, approaches with curiosity. Score 3: the puppy startles, backs up slightly, then approaches. Score 4: the puppy backs away and watches cautiously. Score 5: the puppy retreats to the edge of the test area. Score 6: the puppy freezes or attempts to flee entirely.

This subtest, combined with sound sensitivity, provides the most reliable combined predictor of public access suitability. A dog that scores 5–6 on both sound and stability has significant anxiety responses that will not be overcome with socialization alone — they are neurological tendencies that persist into adulthood.

Interpreting Score Profiles for Working Roles

Individual subtest scores matter less than the overall pattern. Here is how to read the profile for three common roles:

The Dominance/Submission Spectrum in Practice

One of the most useful ways to think about the Volhard scores is as a spectrum from dominant (scores of 1–2) to submissive (scores of 5–6), with the cooperative middle range (3–4) being the target zone for most working applications.

Dominant-Leaning Dogs (Multiple Scores of 1–2)

A puppy with several scores of 1–2 has strong natural leadership drive. These are not bad dogs — they are the dogs that have historically excelled in police work, protection sports, and certain types of detection work. But they require handlers who can provide consistent structure and who will not inadvertently reinforce dominant behavior. For most veterans owner-training a service dog, a dominant-leaning puppy is the wrong starting point. The training load is higher, the risk of handler-dog conflict is greater, and the working relationship is harder to build.

Submissive-Leaning Dogs (Multiple Scores of 5–6)

A puppy with several scores of 5–6 is not a passive, easy-to-train dog — it is a fearful or disengaged one. Submissive does not mean cooperative; it means the dog's default response to pressure is withdrawal rather than engagement. These dogs struggle in unpredictable environments, startle easily, and often shut down when stressed. A submissive-leaning puppy placed into a high-demand service dog role will frequently fail — not because it was never trained, but because it lacked the constitutional resilience for the work.

Balanced Dogs (Mostly 3–4, Some Variation)

This is the target zone. A puppy scoring predominantly 3s and 4s is confident, cooperative, responsive to human interaction, and able to recover from stressors. These dogs are trainable, adaptable, and durable under the demands of working life. They are not the most spectacular dogs in the litter — they won't be the first to the evaluator or the biggest attention-getter. But they are the dogs that finish.

Running the Test: Practical Notes

If you are evaluating a litter — whether at a shelter or a breeder — the following conditions will affect your results:

• Evaluator must be a stranger to the puppy. If you've been at the shelter regularly and the puppy knows you, test results are compromised. Use someone the puppy has never met.
• Test in an unfamiliar area. A separate room, outdoor area, or hallway works. Not the whelping area, not the runs.
• Test each puppy individually. Never test in the presence of littermates — the puppy will orient to its siblings rather than the evaluator.
• Test at 49 days exactly when possible. A day either side is acceptable. More than 3–4 days off compromises validity.
• Do not do more than 2–3 tests in a session. Puppy attention spans are short. If a puppy is fatigued, scores on later subtests will not be reliable.
• Record scores immediately. Do not wait until after all tests to note scores — memory introduces bias, especially if you have a strong early preference for a particular puppy.

Using Volhard Scores Alongside Other Evaluations

The Volhard PAT is a snapshot at 7 weeks. For serious service dog selection, it should be one input among several:

• Follow-up evaluations at 4–5 months — after the fear imprint periods and post-socialization socialization window, behavioral tendencies visible at 7 weeks should be present but more developed. Significant divergence from Volhard scores may indicate environmental influence (good or bad).
• Breed history and parentage — Volhard scores within a breed should be interpreted with breed-typical baselines. A Labrador scoring 2 on retrieve is expressing normal breed drive. A Poodle scoring 2 on retrieve is notable.
• Handler assessment — the best puppy in the litter placed with an unprepared handler is worse than a middling puppy with an experienced one. Volhard evaluation of the puppy is only half the equation.

For a broader framework on what to look for in shelter dog selection for service work — including the four traits that predict success and a green flag / red flag cheat sheet — see our guide: How to Evaluate a Shelter Dog for Service Work.

You can also run the interactive Volhard Temperament Test tool on PawForward to score and interpret your results digitally, with a built-in recommendation engine.

The Volhard Puppy Aptitude Test works because it separates constitutional temperament from training. By the time a dog is 18 months old, you can't always distinguish "genetically anxious" from "poorly socialized" — the behaviors look similar and the interventions overlap. At 7 weeks, you get a cleaner signal. Use it.

The goal is not a perfect score profile. The goal is a consistent pattern in the cooperative mid-range, with no extreme outliers on the subtests that predict public access success: sound sensitivity, stability, and restraint. Get those three right, and you have a candidate worth investing the next 18 months in.