Clicker training is the same as positive reinforcement training, with the added benefit of a clicker. A clicker is simply a small mechanical noisemaker. The techniques are based on the science of animal learning, which says that behaviors that are rewarded are more likely to be repeated in the future. So rather than focusing on what your dog is doing wrong, and taking good behavior for granted, clicker training flips the script and concentrates on what your dog is doing right. By telling your dog what to do, instead of what not to do, you can have an incredible effect on how your dog chooses to behave.
The value of the clicker is that it tells your dog exactly which behavior you’re rewarding. By clicking at the right time, you can “mark” the moment your dog did what you wanted. So rather than having to guess what you liked, the click tells your dog precisely what they did correctly. For example, if you’re training your dog to sit, you would click at the moment your dog’s butt hit the ground.