Students' adaptive motivation to study tends to decrease over time. However, the reasons for this decline are not fully understood. Drawing on self-determination theory (SDT), we investigated whether changes in teachers' motivating style and students' associated need-based experiences could explain the motivational decline documented in the…

This study aimed to gain more insight in the sources of daily parenting among mothers of children with autism spectrum disorder (ASD). Specifically, we examined associations between daily variations in child behavior, mothers' psychological needs, and mothers' controlling and autonomy-supportive parenting. Moreover, the study examined the…

Grounded in self-determination theory, this study examined the explanatory role of teachers' need-based experiences in the association between teachers' perceived social pressure (i.e., from the principal, colleagues, and students) and their personal adjustment and motivating teaching style. In total, 482 secondary school teachers (M age = 39.9…

Guided by Self-Determination Theory, we offer an integrative and fine-grained analysis of teachers' classroom motivating style (i.e., autonomy support, structure, control, and chaos) to resolve existing controversies in the literature, such as how these dimensions relate to each other and to educationally important student and teacher outcomes.…

Although abundant research has demonstrated associations between psychologically controlling parenting and adolescent problem behavior, little is known about the moderating role of adolescent personality herein. This study examined whether adolescent personality moderates the associations between parental psychological control and internalizing…

This study examined the unique relations between multiple sources (i.e., mothers, teachers, and siblings) of perceived daily autonomy support and psychological control and children's basic psychological needs and well-being. During 5 consecutive days, 2 children from 154 families (M[subscript age] youngest child = 8.54 years; SD = 0.89 and…

Although the effects of important parenting dimensions, such as responsiveness and psychological control, are well documented among Western populations, research has only recently begun to systematically identify psychological processes that may account for the cross-cultural generalization of these effects. A first aim of this study was to…

Self-determination theory (SDT) has served as a theoretical framework for considerable research on teaching behavior and student motivation. The majority of studies have focused on need-supportive teaching behavior at the expense of need-thwarting teaching behavior (i.e., the "dark side" of teaching). The goal of the present study was to…

The fulfillment of the basic psychological needs for autonomy, competence, and relatedness as postulated within self-determination theory was hypothesized to play an energizing role in identity formation, conceptualized as multiple dimensions of exploration and commitment. Two studies among high school and college students (N = 714) were conducted…

The present research examined the effects of intrinsic and extrinsic goal attainment on older adults' ego-integrity, psychological well-being, and death attitudes. Hypotheses were derived from Self-Determination Theory (SDT; Deci & Ryan, 2000; Vansteenkiste, Ryan, & Deci, in press). Study 1 (N = 202, Mean age = 68.2 years) indicated that, after…

Using self-determination theory, two studies investigated the relations among perceived need support from parents, their adolescents' autonomous self-regulation for academics, and the adolescents' well-being. Study 1 indicated that perceived need support from parents independently predicted adolescents' well-being, although when mothers' and…

Examination of motivational dynamics in academic contexts within self-determination theory has centered primarily around both the motives (initially intrinsic vs. extrinsic, later autonomous vs. controlled) that regulate learners' study behavior and the contexts that promote or hinder these regulations. Less attention has been paid to the goal…