Abstract: Self-determination Theory focuses on the motivation of human behaviors and the conditions within organizations that promote optimal motivation. This review discusses the philosophical basis of SDT, which uses organismic and dialectical assumptions. It also summarizes research on work motivation in organizations that has been guided by SDT. The research confirms the SDT perspective which suggests that organizational factors that support satisfaction of employees’ basic psychological needs for autonomy, competence and relatedness will promote intrinsic motivation and the internalization of extrinsic motivation, which will in turn promote effective performance and psychological health in organizations.

Key words: Self-determination Theory, intrinsic motivation, internalization, work motivation, psychological need