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This study investigated the effects of proximal and distal constructs on adolescent's academic achievement through self-efficacy. Participants included 482 ninth- and tenth- grade Norwegian students who completed a questionnaire designed to assess school-goal orientations, organizational citizenship behavior, academic self-efficacy, and academic achievement. The results of a bootstrapping technique used to analyze relationships between the constructs indicated that school-goal orientations and organizational citizenship predicted academic self-efficacy. Furthermore, school-goal orientation, organizational citizenship, and academic self-efficacy explained 46% of the variance in academic achievement. Mediation analyses revealed that academic self-efficacy mediated the effects of perceived task goal structure, perceived ability structure, civic virtue, and sportsmanship on adolescents' academic achievements. The results are discussed in reference to current scholarship, including theories underlying our hypothesis. Practical implications and directions for future research are suggested.

Having a less-frequent intake of unhealthy foods and not skipping meals are associated with decreased odds of self-reported learning difficulties in Norwegian adolescents in this study. The results of this study support the need for a larger study with a more representative sample.

The purpose of this study was to examine the relationship between group cohesion, group norms, and perceived social loafing among 118 soccer players playing junior league in Norway. Each player completed a questionnaire assessing group cohesion (task cohesion and social cohesion), team norms (productive norms, role involvement, and social support norms), and perceived social loafing. As predicted, all cohesion- and team-norm subscales were negatively correlated with perceived social loafing. Furthermore, the results showed that the players’ attraction to their team’s task as well as their perception of the productive- and social-support norm predicted perceptions of social loafing. A significant three-way interaction between task cohesion, social cohesion, and performance norm emerged. The analysis showed that the combination of high social cohesion, low task cohesion, and low team norms seems to underlie perceptions of social loafing.