Are Designer Poodle-Crosses Really Better Behaved? The 2026 PLOS Study

If you have scrolled through any rescue page or breeder waitlist lately, you have probably noticed a curly-coated common denominator: the Poodle cross. Cockapoos, Labradoodles, Goldendoodles and Cavapoos are now among the most popular family dogs in the UK, US and Australia, often marketed as low-shedding, easy-going and "the best of both breeds."

A new 2026 study published in PLOS One put that marketing claim to the test — and the results are more nuanced than the Instagram reels suggest.

What the study actually did

Researchers analysed owner-reported behaviour data (using the validated C-BARQ questionnaire) from thousands of dogs across three popular Poodle crosses — Cockapoos, Labradoodles and Goldendoodles — and their progenitor breeds (Cocker Spaniel, Labrador Retriever, Golden Retriever and Standard Poodle).

They scored each dog across 14 behavioural traits, including stranger-directed aggression, owner-directed aggression, fear, separation problems, trainability, excitability and attention-seeking.

The headline finding: crosses are not automatically "calmer"

Across most behavioural domains, the designer crosses did not outperform their purebred parents. In several traits they actually scored worse:

• Cockapoos showed higher attention-seeking and separation-related behaviours than both Cocker Spaniels and Poodles.
• Labradoodles scored higher than Labradors on stranger-directed fear and excitability.
• Goldendoodles showed more owner-directed aggression and rivalry with other dogs than Golden Retrievers.

Trainability — often a top selling point — was broadly similar between crosses and purebreds, not superior.

Why the "hybrid vigour" myth keeps spreading

The idea that mixed-breed dogs are healthier and better-tempered is rooted in genuine genetics — but it applies mainly to random-bred mixes with broad ancestry. First-generation designer crosses share a small, fashionable gene pool and are bred at high volume, often by inexperienced breeders who do not screen for temperament.

That matters, because behaviour is heavily shaped by the 3–16 week socialisation window. If you are bringing home a doodle puppy, the breeder's early-life setup matters at least as much as the cross itself — see our 2026 vet guide to puppy socialisation.

What this means if you own (or want) a Poodle cross

1. Train as if you have a working dog. Cockers, Labs, Goldens and Poodles are all working breeds. Reward-based training is non-negotiable — see our summary of the 2026 reward-based vs aversive training study.
2. Plan for separation. Cockapoos especially are prone to clingy behaviours. The RVC Generation Pup study found early alone-time training is one of the strongest protective factors.
3. Do not skip exercise. Lifelong activity is linked to slower cognitive decline; read our writeup on lifelong exercise and dog brain ageing.
4. Mind the body too. Designer crosses inherit health risks from both parents — anything from hip dysplasia to brachycephalic traits in some smaller crosses (see the 2026 BOAS study).

The bottom line

Poodle crosses can be wonderful family dogs — but the 2026 PLOS One data dismantles the idea that they are inherently calmer, easier or better-behaved than purebreds. They are working-bred dogs in a teddy-bear coat, and they need the same investment in socialisation, training and exercise as any pedigree.

If you are choosing a puppy, ignore the marketing label and ask the harder questions: what does the breeder do in the first 8 weeks, are both parents temperament-tested, and are you ready for a smart, energetic dog?