Why Temperament Testing Matters
Temperament testing is not a formality. It is the single most important filter in a service dog program. Training time, placement costs, and partner welfare all depend on selecting the right dog from the start.
In our experience at the Assistance Dog Institute of Canada, the majority of program washouts trace back to temperament issues that were present early and either missed or minimized at intake. A dog with marginal reactivity at eight weeks is often a liability at eighteen months.
This guide is written for working trainers. It covers standardized temperament testing protocols at each developmental stage, breed selection considerations specific to the Canadian context, and the documentation practices that hold up to Assistance Dogs International scrutiny.
The CADI Framework for Temperament Assessment
The Assistance Dog Institute of Canada uses a structured, multi-point framework that evaluates seven core temperament domains. These are not ranked equally. They are weighted based on the specific service role the dog is being trained for.
The seven domains are: stress recovery, environmental adaptability, handler focus, sound sensitivity, novel stimulus response, social confidence, and pain tolerance. Each domain is scored on a four-point scale: Disqualifying, Marginal, Acceptable, and Exemplary.
A dog must score Acceptable or above in all seven domains to advance in the program. A single Disqualifying score ends the evaluation. Marginal scores in two or more domains also result in a release from the program, regardless of performance in other areas.
This rubric is documented in the CADI Candidate Evaluation Manual and is reviewed annually by our senior training staff.

Age-Staged Testing Protocols
Temperament does not present fully formed at any single age. A responsible evaluation program stages testing to capture different windows of development.
Seven to Eight Weeks
This is your primary neurological and social baseline window. At this stage, you are not training. You are observing. The Campbell Test and the Volhard Puppy Aptitude Test both provide useful structure here, though CADI trainers are trained to supplement these with free-play observation and startle recovery timing.
Key markers at this age include response to sudden sound (a single handclap from behind), social attraction to an unfamiliar person, and willingness to follow. A puppy that freezes for more than six seconds after a startle and does not re-engage spontaneously is flagged for close monitoring.
Twelve to Fourteen Weeks
The secondary socialization window. Environmental exposure should be well underway by now, and this is when you begin assessing adaptability under mild stress. Introduce novel surfaces, mild crowd simulation, and brief handler separation.
Watch specifically for displacement behaviours: yawning, lip-licking, or sustained avoidance in response to novel stimuli. One or two instances in a session are normal. Sustained or escalating displacement behaviours across multiple stimuli warrant documentation and possible re-evaluation at sixteen weeks.
Six Months
This is your first structured formal assessment. The dog has had foundational training exposure. You are now evaluating how temperament and trainability intersect. Run the dog through a standardized obstacle course that includes a slippery floor, a moving crowd, a sudden loud noise, and handler change mid-session.
At six months, handler focus becomes a primary metric. A dog that performs well with a known handler but shuts down or becomes hyperaroused with a stranger is showing early handler-dependence. That pattern needs to be addressed aggressively or it will become a placement risk.
Twelve to Eighteen Months
Final pre-placement temperament confirmation. At this stage you are evaluating the whole picture: stability under prolonged public access, behaviour in transit (including vehicle, bus, and rail scenarios common across Canadian cities), and response to weather transitions. More on that in the next section.
Breed and Canadian Climate Considerations
Canadian service dog trainers face a variable that most international standards underweight: climate. A dog placed in Halifax will encounter wet, salty winters. A dog placed in Calgary will work through dry cold, chinook pressure drops, and icy sidewalks. A dog in Thunder Bay may face six-month winters with extended sub-zero outdoor exposure.
Coat type and cold tolerance are not temperament variables, but they are welfare variables that affect temperament expression. A dog that is physically uncomfortable in its working environment will show stress behaviours that can be misread as temperament instability.
Breed Suitability by Canadian Region
Labrador Retrievers and Golden Retrievers remain the dominant service dog breeds in Canada for good reason. Their coats handle a wide range of conditions, their pain tolerance is generally high, and their social confidence profile is consistently trainable. Standard Poodles perform well in urban southern Ontario and BC settings but require careful coat management in wet winter conditions.
For northern placements, trainers should give serious consideration to Labrador cross breeds with heavier double coats. Belgian Malinois are increasingly used in mobility and PTSD support roles but require elite-level temperament scores across all seven CADI domains. A Malinois with a Marginal score in any domain is not a service dog candidate in our program.
German Shepherds require particular attention to sound sensitivity in cold weather. Ice cracking underfoot and snow falling from roofs are common startle triggers in Canadian winters. A Shepherd that scores Acceptable in a July evaluation should be re-tested in January conditions before final placement confirmation.

What to Document and How
Documentation is where many strong training programs fall apart. Observation without a paper trail is anecdote. In a professional program, every evaluation must produce a retrievable, time-stamped record.
Each temperament evaluation session at CADI generates a Candidate Evaluation Record (CER). The CER includes the dog's ID number, date of birth, breed, evaluating trainer's CPDT credential number, session date, environmental conditions, and scores in all seven domains.
Narrative notes are mandatory for any Marginal score. Notes must describe the specific stimulus, the dog's exact behaviour, the duration of the response, and the recovery method used. Vague entries like "seemed nervous" are not acceptable. Write "Dog froze for four seconds upon hearing shopping cart collision, recovered on verbal mark, re-engaged within eight seconds."
All CERs are stored in the CADI digital registry for a minimum of seven years. If the dog is placed with a partner, the CER history travels with the placement file. This creates accountability across the dog's working life and supports any future re-evaluation if behaviour concerns emerge post-placement.
For trainers building their own programs, a simple spreadsheet with standardized fields is a legitimate starting point. What matters is consistency. Every dog, every session, same fields, same scoring rubric.
Aligning with Assistance Dogs International Standards
Assistance Dogs International publishes minimum standards for service dog teams that any credible Canadian program should be familiar with. Their Public Access Test and team training standards are the international benchmark.
CADI's temperament testing framework is designed to feed into ADI compliance. A dog that earns Exemplary scores across all seven CADI domains will typically exceed ADI minimum standards. A dog that scores Acceptable in all domains meets but does not significantly exceed those standards.
ADI accreditation requires documentation of training methodology and dog welfare standards. Trainers seeking or maintaining CADI accreditation status should cross-reference their evaluation records against current ADI minimum standards annually. Standards evolve, and your documentation framework needs to evolve with them.
One area where CADI goes beyond baseline ADI requirements is the climate-specific evaluation component. ADI standards do not currently address regional climate adaptation. We view that as a gap, and our northern placement protocols reflect the additional welfare and temperament stability requirements that Canadian conditions demand.
Common Disqualifiers and Borderline Cases
In our experience, the most common hard disqualifiers are persistent handler-directed aggression, resource guarding that does not extinguish under structured counter-conditioning within twelve weeks, and sound sensitivity that does not reduce with systematic desensitisation by twelve months.
Borderline cases are harder. A dog with strong scores in six of seven domains but a Marginal in stress recovery creates a difficult conversation. Some of those dogs go on to serve well in lower-stimulation placements. Others wash out at eighteen months when public access demands exceed their threshold.
Our policy is to be honest about what we see. A borderline dog placed in the wrong role is a welfare risk to the dog and a safety risk to the partner. When in doubt, we defer to the data. That is not a failure. That is the evaluation working as designed.
Trainers working with owner-trained candidates face additional complexity. The owner is emotionally invested, and the dog's behaviour in the owner's presence may not reflect public access behaviour. Always evaluate owner-trained candidates with an unfamiliar handler for at least one session. The difference in performance is informative.
Building a Sustainable Testing Program
A strong temperament testing program is not built overnight. It is built through consistency, peer review, and honest data collection over time.
Start with a clear evaluation rubric. CADI's seven-domain framework is available as a reference model. Adapt it to your program's specific placement types, but do not simplify it to the point of meaninglessness. Fewer domains mean less information.
Build inter-rater reliability into your program from the beginning. Two trainers should evaluate the same dog independently and compare scores. Disagreements are not problems. They are learning opportunities that strengthen your rubric over time.
Invest in your evaluators. The trainer development resources at CADI include structured mentorship for trainers building or refining evaluation programs. Experienced evaluators make better decisions, and better decisions produce better-matched partnerships.
TheraPetic® Canada, our partner organization, works alongside CADI to support the human side of service dog partnerships. As a 501(c)(3) nonprofit healthcare provider, TheraPetic® Healthcare Provider Group is committed to ensuring that both the dog and the handler are well-matched and fully supported through the placement process. That shared mission starts with rigorous temperament evaluation at the trainer level.
If you are a working trainer looking to deepen your assessment skills or connect with the CADI evaluation network, begin with a clinical screening consultation to explore how our trainer pathways work. You can also reach our team directly at help@mypsd.org or by calling (800) 851-4390.
The dogs that enter service dog programs deserve evaluators who take this work seriously. Rigorous temperament testing is not bureaucratic overhead. It is the foundation of every successful partnership.
Written By
Karen Robertson, CPDT-KSA #58327 — Canadian Training Director
Assistance Dog Institute of Canada • Verified at CCPDT Directory
Editorial Review
This article was reviewed by Karen Robertson, MS, CPDT-KSA on June 26, 2026 for accuracy, currency, and clarity. Content is updated when laws or guidance change.