Dog training methods vary from positive reinforcement to aversive techniques. Evidence strongly favors reward-based approaches for both welfare and effectiveness.
Dog training method choice has direct welfare implications. Aversive techniques that use pain, fear, or intimidation cause measurable stress responses — elevated cortisol, displacement behaviors, yawning, and avoidance — indicating genuine welfare harm. These effects persist beyond training sessions and affect overall quality of life. Positive reinforcement training achieves equivalent or superior obedience outcomes while building dog confidence and the human-animal bond. The evidence base for reward-based training is robust. Choosing a trainer should involve evaluating their methods, not just their results.