A reward^{[dead link]} is getting something good for doing a given task. It needs someone who has the power to give the good thing. It is the opposite of punishment.

Ideas like risk and reward, reward and punishment are based on the idea that people do things, or avoid doing things, to get rewards. In psychology there is another idea that this is not true. This other idea says that training (conditioning) and emotions (affective factors) are much more important than the rewards or punishments given by others.