Scientific evidence overwhelmingly supports positive reinforcement as the most effective and welfare-positive method for training dogs. Aversive training methods cause measurable harm and are less effective than reward-based approaches.
The persistence of aversive training methods in dog training communities is a significant welfare problem. Despite clear scientific consensus that reward-based methods are more effective and less harmful, punishment-based approaches including prong collars, choke chains, and shock devices remain legal in many jurisdictions and promoted by some trainers. The welfare harm from aversive training includes immediate pain and fear, chronic anxiety, damage to the human-dog relationship, and increased aggression risk. Professional standards organizations including the International Association of Animal Behavior Consultants and the Pet Professional Guild advocate for force-free training standards. Owner education is central to changing practice.