Positive reinforcement training means giving dogs rewards to teach them to perform more of the behaviors we want. Unwanted behaviors are reduced by rewarding the dog for doing something else, or by simply withholding or removing rewards after an undesired response.
Positive training emphasizes using rewards – things the dog likes and will adapt their behavior to earn more of. It excludes the use of aversives – things the dog dislikes and works to avoid or escape from, such as choke collars, prong collars, shock collars, and other devices that function via the application and/or the threat of physical discomfort.