Positive reinforcement training using rewards for desired behaviours is the most evidence-based approach to companion dog training. It produces reliable, lasting behaviour change while supporting the human-animal bond and protecting dog welfare.
Aversive training methods including shock collars, choke chains, prong collars, and physical punishment cause fear, pain, and anxiety that reduce welfare and can damage the dog-owner relationship. The evidence base overwhelmingly favours reward-based methods for both efficacy and welfare. Welfare concerns extend beyond the training session: dogs trained with aversive tools often show generalised anxiety and avoidance of training contexts. Most countries with advanced animal welfare legislation either ban or restrict aversive training devices. Owners who invest in positive reinforcement-based training classes typically report stronger bonds with their dogs and more reliable, joyful obedience.