The training methods used with dogs have profound welfare implications, with evidence strongly supporting positive reinforcement over aversive techniques.
The choice of training method profoundly affects dog welfare in both the immediate training context and long-term psychological wellbeing. Aversive training methods — those that work by applying or threatening pain, fear, or discomfort — achieve compliance through suppression of behavior and can cause lasting psychological harm including generalized anxiety and defensive aggression. Positive reinforcement training works by rewarding desired behaviors, creating positive emotional associations with training and the trainer. Research consistently supports the superiority of positive reinforcement for both welfare and behavioral outcomes. Regulatory bans on the most harmful devices, combined with public education about training method effects, are important welfare measures.