lives, which enhances their perception of themselves and their surroundings. Not only does SDT tend to focus on innate psychological needs, it also focuses on the pursuit of goals, the effects of the success in their goals, and the outcome of goals. Basic psychological needs One mini-theory of SDT includes basic psychological needs theory which proposes three basic psychological needs that must be satisfied to foster well-being and health. These three psychological needs of autonomy, competence, and relatedness are generally universal (i.e., apply across individuals and situations). However, some needs may be more salient than others at certain times and be expressed differently based on time, culture, or experience. SDT identifies three innate needs that, if satisfied, allow optimal function and growth: AutonomydeCharms, R. (1968). Personal causation. New York: Academic Press. Desire to be causal agents of one's own life and act in harmony with one's integrated self; however, note this does not mean to be independent of others, but rather constitutes a feeling of overall psychological liberty and freedom of internal will. When a person is autonomously motivated their performance, wellness, and engagement is heightened rather than if a person is told what to do (a.k.a. control motivation). Deci found that offering people extrinsic rewards for behavior that is intrinsically motivated undermined the intrinsic motivation as they grow less interested in it. Initially intrinsically motivated behavior becomes controlled by external rewards, which undermines their autonomy. In further research by Amabile, DeJong and Lepper, other external factors also appear to cause a decline in such motivation. For example, it is shown that deadlines restrict and control an individual which decreases their intrinsic motivation in the process. Situations that give autonomy as opposed to taking it away also have a similar link to motivation. Studies looking at choice have found that increasing a participant's options and choices increases their intrinsic motivation. Direct evidence for the innate need comes from Lübbecke and Schnedler who find that people are willing to pay money to have caused an outcome themselves. Additionally, satisfaction or frustration of autonomy impacts not only an individual's motivation, but also their growth. This satisfaction or frustration further affects behavior, leading to optimal well-being, or unfortunate ill-being. Competence Seek to control the outcome and experience mastery. Deci found that giving people unexpected positive feedback on a task increases their intrinsic motivation to do it, meaning that this was because positive feedback