This study examined the diversity in feelings of loneliness among high-ability students. Individual differences (intelligence level, giftedness label, and personality) and differences in the social context (peer acceptance, peer rejection, victimization, and friendship quantity) of adolescents were considered as predictors of loneliness.…

Although it has been hypothesized that gifted students are at risk for adopting a fixed mind-set, research revealed inconsistent results. We aimed to clarify this by differentiating between two operationalizations of giftedness (high cognitive ability and formal identification as gifted) and how these relate to students' beliefs about intelligence…

Beliefs about academic functioning play an important role in the academic development of students. This study considers perceptions about underachievement, that is, the degree to which accomplishments are believed to be in line with potential. In particular, we examined why these perceptions might deviate from measured underachievement, determined…

While bivariate associations between motivation and academic achievement have been soundly established, only a few studies have documented evidence for its incremental predictive role above and beyond other student features related to student achievement, such as intelligence and personality. Moreover, it is not yet clear which motivational…

Action competence consists of the knowledge, willingness, and self-efficacy for contributing to a controversial issue such as sustainable development. As such, action competence in sustainable development (ACiSD) is a desired outcome of education for sustainable development (ESD). Still, the scarce instruments for measuring ACiSD that have been…