I study the effects of early between-school ability tracking on student achievement, exploiting institutional differences between German federal states. In all states, about 40% of students transition to separate academic-track schools after comprehensive primary school. Depending on the state, the remaining student body is either directly tracked…

The present study investigates the effects of participation in academic extracurricular activities on student achievement in mathematics and reading in the course of secondary schooling. We use 2 samples of nonmandatory all-day schools that are part of the National Educational Panel Study (NEPS): N = 1,131 fifth graders at 43 schools were followed…

Educational effectiveness research often appeals to "value-added models (VAM)" to gauge the impact of schooling on student learning net of the effect of student background variables. A huge amount of cross-sectional studies do not, however, meet VAM's requirement for longitudinal data. "Contextualised attainment models (CAM)"…