There is also the concept of punishment and other ideas but they are beyond the scope of my interest at the moment. Most good trainers agree that positive reinforcement is the better method although, sadly, there are still those who would rather force their will instead of asking a partnership. That statement, as well as all of the above, is meant for both animals and humans.
All of that said, I really wish someone would try positive reinforcement with me sometimes... I have an idea I'd respond really well.