Self-determination theory (SDT) assumes that inherent in human nature is the propensity to be curious about one's environment and interested in learning and developing one's knowledge. All too often, however, educators introduce external controls into learning climates, which can undermine the sense of relatedness between teachers and students, and stifle the natural, volitional processes involved in high-quality learning. This article presents an overview of SDT and reviews its applications to educational practice. A large corpus of empirical evidence based on SDT suggests that both intrinsic motivation and autonomous types of extrinsic motivation are conducive to engagement and optimal learning in educational contexts. In addition, evidence suggests that teachers' support of students' basic psychological needs for autonomy, competence, and relatedness facilitates students' autonomous self-regulation for learning, academic performance, and well-being. Accordingly, SDT has strong implications for both classroom practice and educational reform policies.

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Using self-determination theory, two studies found that holding an extrinsic, relative to an intrinsic, work value orientation was associated with less positive outcomes (i.e. less satisfaction with, dedication to and vitality while on the job) and more negative outcomes (i.e. higher emotional exhaustion, short-lived satisfaction after successful goal-attainment, and turn-over intention). These relations were not limited to job outcomes, but also emerged using indicators of employees' general mental health. Moreover, income level did not moderate these relations. Study 2 found that holding an extrinsic, relative to an intrinsic, work value orientation was detrimental to employees' job outcomes because these orientations thwarted the satisfaction of the basic psychological needs for autonomy, competence and relatedness at work.

The authors conducted 2 studies of 9th-grade Israeli adolescents (169 in Study 1, 156 in Study 2) to compare the parenting practices of conditional positive regard, conditional negative regard, and autonomy support using data from multiple reporters. Two socialization domains were studied: emotion control and academics. Results were consistent with the self-determination theory model of internalization, which posits that (a) conditional negative regard predicts feelings of resentment toward parents, which then predict dysregulation of negative emotions and academic disengagement; (b) conditional positive regard predicts feelings of internal compulsion, which then predict suppressive regulation of negative emotions and grade-focused academic engagement; and (c) autonomy support predicts sense of choice, which then predicts integrated regulation of negative emotions and interest-focused academic engagement. These findings suggest that even parents' use of conditional positive regard as a socialization practice has adverse emotional and academic consequences, relative to autonomy support.

The basic psychological needs for autonomy, competence, and relatedness have been found to have unique additive effects on psychological well-being (see E. L. Deci & R. M. Ryan, 2000). In the present study, the authors extended these findings by examining whether the balance in the satisfaction of these 3 needs is also important. The results of 4 studies showed that people who experienced balanced need satisfaction reported higher well-being than those with the same sum score who reported greater variability in need satisfaction. This finding emerged for multiple measures of needs and adjustment and was independent of neuroticism. Moreover, results were obtained consistently across concurrent, prospective, daily diary, and observer-report study designs. Discussion focuses on the psychological meaning and functional implications of balanced need satisfaction.