Despite the emphasis on data-based decision making (DBDM) in educational policy in several countries, evidence regarding the intended effect of improved student achievement is still scarce. The purpose of this study is to examine the effects of a DBDM intervention on teacher efficacy. This study incorporates an experimental longitudinal research…

Children practice their spatial skills when playing with spatial toys, such as construction materials, board games, and puzzles. Sex and SES differences are observed in the engagement in such spatial play activities at home, which relate to individual differences in spatial performance. The current study investigated the effects of explicitly…

The purpose of this study was to identify and validate subtypes of peer status by integrating preference and popularity into a single framework. Person-oriented analyses were performed among 3,630 children and adolescents of different cohorts in primary and secondary education. In the young age groups (Grade 3/4 to Grade 7), three clusters were…

The present study investigated the effects of socioeconomic and ethnic classroom composition on developments in students' motivation, sense of classroom belonging, and achievement. A sample of 722 primary school students completed questionnaires from 3rd to 6th grade. Latent growth curve analyses revealed that the reading comprehension scores of…

The Second International Conference on Educational Data Mining (EDM2009) was held at the University of Cordoba, Spain, on July 1-3, 2009. EDM brings together researchers from computer science, education, psychology, psychometrics, and statistics to analyze large data sets to answer educational research questions. The increase in instrumented…