Deci and Ryan (1985) put forward another influential dimension in classification - intrinsic and extrinsic motivation, which is widely cited nowadays. Intrinsic means “from within”. People are intrinsically motivated not because accomplishing the activity they do brings a reward, but because doing the activity itself is a reward. The feeling of competence and self-determination are significant factors of intrinsic motivation. Then, Extrinsic motivation, on the other hand, is carried out in anticipation of a reward from outside and beyond the self, which typically can be money, prizes, grades, and even certain types of positive feedback. It focuses on something external to the learning activities and extrinsic motivation is encouraged by outside force.