Competitiveness and cooperativeness are important predictors of social and learning outcomes at school. Drawing on evidence suggesting that contexts with high income inequality foster an ethos of competitiveness and inhibit cooperativeness in the economic environment, we examine whether income inequality is also associated with more…

Data from international large-scale assessments (ILSAs) of schooled populations indicate that boys have considerably poorer literacy skills than girls. New evidence from a household-based ILSA--Organisation for Economic Cooperation and Development Survey of Adult Skills (PIAAC)--indicates that the gender gap in literacy is negligible, even though…

International Large-Scale Assessments (LSA) allow comparisons of education systems' effectiveness in promoting student learning in specific domains, such as reading, mathematics, and science. However, it has been argued that students' scores in International LSAs mostly reflect general cognitive ability (g). This study examines the extent to which…

We conducted three preregistered studies using the Organization for Economic Co-operation and Development Programme for International Student Assessment (PISA) data to provide a worldwide estimation of the standardized test gap between students from lower and higher social classes. We investigated: (a) the degree to which academic anxiety…

Students' school belonging is critical to overall functioning. Most past studies of school belonging's antecedents focused on individual-level and proximal environmental factors, neglecting broader socioecological factors such as income inequality. Hence, this study examined whether income inequality is associated with students' school belonging.…

The present integrative data analysis examined gender differences in achievement, achievement profiles, and achievement motivation in mathematics, reading, and science among 113,864 top-performing adolescent math students (top 5% in their respective countries). To do this, we applied the same analysis protocol to representative individual…

The proliferation of information and divergent viewpoints in the 21st century requires an educated citizenry with the ability to critically evaluate information and make informed decisions. To meet this demand, adaptive epistemic understandings and beliefs about the nature of knowledge are needed, such as believing that scientific knowledge is…

Efficiency in reading component skills is crucial for reading comprehension, as efficient subprocesses do not extensively consume limited cognitive resources, making them available for comprehension processes. Cognitive efficiency is typically measured with speeded tests of relatively easy items. Observed responses and response times indicate the…

It is well-documented that academic achievement is associated with students' self-perceptions of their academic abilities, that is, their academic self-concepts. However, low-achieving students may apply self-protective strategies to maintain a favorable academic self-concept when evaluating their academic abilities. Consequently, the relation…