Extrinsic Motivation: This is motivation driven by external rewards or punishments. Like studying hard to get good grades, not necessarily because you love learning.
Positive Reinforcement: This involves adding something desirable to increase a behavior. For example, giving a child candy for doing their homework.
Negative Reinforcement: This involves removing something undesirable to increase a behavior. Like turning off an annoying alarm by getting out of bed in the morning.