Cognitive evaluation theory

Cognitive evaluation theory (CET) is a theory in psychology that is designed to explain the effects of external consequences on internal motivation. Specifically, CET is a sub-theory of self-determination theory that focuses on competence and autonomy while examining how intrinsic motivation is affected by external forces in a process known as motivational "crowding out." CET uses three propositions to explain how consequences affect internal motivation: External events set will impact intrinsic motivation for optimally challenging activities to the extent that they influence perceived competence, within the context of self-determination theory. Events that promote greater perceived competence will enhance intrinsic motivation, whereas those that diminish perceived competence will decrease intrinsic motivation (Deci & Ryan, 1985). Events relevant to the initiation and regulation of behavior have three potential aspects, each with a significant function. The informational aspect facilitates an internal perceived locus of causality and perceived competence, thus positively influencing intrinsic motivation. The controlling aspect facilitates an external perceived locus of causality (a person's perception of the cause of success or failure), thus negatively influencing intrinsic motivation and increasing extrinsic compliance or defiance. The amotivating aspect facilitates perceived incompetence, and undermining intrinsic motivation while promoting disinterest in the task. The relative salience and strength of these three aspects to a person determines the functional significance of the event (Deci & Ryan, 1985). 3. Personal events differ in their qualitative aspects and, like external events, can have differing functional significances. Events deemed internally informational facilitate self-determined functioning and maintain or enhance intrinsic motivation. Events deemed internally controlling events are experienced as pressure toward specific outcomes and undermine intrinsic motivation.