Think "functional" to solve your dog's reactivity issues Behavior Adjustment Training (BAT) was developed by author Grisha Stewart to rehabilitate and prevent dog reactivity. BAT looks at the function of growling, lunging, or fleeing and helps dogs learn socially acceptable behaviors that serve that same function. In a nutshell, BAT builds confidence by giving dogs a chance to learn to control their environment through peaceful means. That makes BAT very empowering to your dog or puppy, in a good way. It's also empowering for you, as you learn how to understand your dog and help him learn to safely get along with people, dogs, and other "triggers."