According to S. Coren, author of "The Intelligence of Dogs", there are three types of dog intelligence: * Adaptive Intelligence (learning and problem-solving ability) * Instinctive Intelligence * Working /Obedience Intelligence The first two intelligence's are individual dog specific, whereas Working / Obedience Intelligence can be applied to a whole breed. Most intelligent dogs These breeds on average require less than 5 repetitions to understand a new command. They obey first commands 95 % of the time or better. Least intelligent dogs Require more than 80 repetitions to understand a new command. Obey first commands less than 25 % of the time.