Bullying is a major health problem. The KiVa antibullying program has been evaluated in Finland and other European countries, showing preventive effects on self-reported bullying victimization and perpetration. No evaluations of this program have been conducted in Latin America. A cluster randomized controlled trial was conducted at socially…

Self-efficacy perceptions on second language settings have been linked to several aspects including learner performance in linguistic tasks, willingness to communicate, and language learning strategy use. These firmly place self-efficacy as a variable affecting cognitive and contextual aspects in language learning settings. However, the amount of…

This study investigates school effects on primary school students' language and mathematics achievement trajectories in Chile, a context of particular interest given its large between-school variability in educational outcomes. The sample features an accelerated longitudinal design (3 time points, 4 cohorts) together spanning Grades 3 to 8…