self-determination theory (sdt) states that satisfaction of basic psychological needs, including the need for autonomy, competence and relatedness will lead to intrinsic motivation. this study examines the relationship between basic psychological needs and intrinsic motivation of iranian female students in mathematics. for this purpose, 382 students of five school responded to the scale of intr...

Based on the self-determination theory (SDT), this study aims to examine the psychological needs satisfaction of the elderly living in residential homes and their relationship with indicators of well-being, and then to test the contribution of each need on these indicators. Participants (N=100; Mage=86.7 years, SD=3.78) completed the measures of psychological needs satisfaction, purpose in life...

Self-determination theory (SDT) postulates that satisfaction of three basic psychological needs (i.e., autonomy, competence, and well-being) promotes motivation, well-being, and growth across domains of functioning. Thus, per SDT, we examined satisfaction of basic psychological needs among individuals with first-episode psychosis. First, we quantified the level of need satisfaction among a samp...

Research and theory concerning the nature and sources of well-being has been undertaken through varied approaches. Two such approaches are the capability approach and self-determination theory (SDT), both of which have postulated specific factors deemed necessary for human well-being and flourishing. In two studies we examine the relations between capabilities and well-being indicators, as well...

Objectives: The Self-Determination Theory (SDT) posits that basic psychological needs (BPNs) are indispensable and vital nutrients for well-being. The present research was done to apply SDT to understand students’ well-being, which proposes that the realization and fulfillment of BPNs and subjective vitality significantly influence the overall well-being of an individual. Therefore, the current...

Self-determination theory (SDT) posits 3 evolved psychological needs, for autonomy, competence, and relatedness. Considerable research has established that all 3 experiences are important for well-being. However, no SDT research has examined whether unmet needs have motivational force, an important criterion for establishing that certain experiences are indeed basic needs and motives (R. F. Bau...

In line with self-determination theory (SDT: Deci & Ryan, 1985, 2002) the satisfaction of the basic psychological needs for autonomy, competence, and relatedness has been identified as an important predictor of behavior and optimal functioning in various contexts including exercise. The lack of a valid and reliable instrument to assess the extent to which these needs are fulfilled among Portugu...

In accordance with self-determination theory (SDT; Deci & Ryan, 1985), this study examined the relationship between autonomy support, psychological need satisfaction, motivational regulations, and exercise behavior. Participants (N5 369) were recruited from fitness, community, and retail settings. Fulfillment of the 3 basic psychological needs (i.e., competence, autonomy, and relatedness) relat...

Vitality, or the energy available to the self, is a salient and functionally significant indicator of health and motivation. Previous models (e.g., Baumeister & Vohs, 2007) have suggested how such energy can be depleted but have focused less on how it can be maintained or enhanced. In this article, we describe a model of energy and vitality based on self-determination theory (Ryan & Deci, 2000)...