. But the linear-in-means model masks considerable heterogeneity in the effects experienced by different types of students …. Using nonlinear models, one prevalent finding is larger peer effects in which high ability students benefit from the … presence of other high ability students. Studies that stratify students by race and ability often find that students are …

While most 15-year-old students spend part of their after-school time doing homework, the amount of time they spend on … it shrank between 2003 and 2012. Socio-economically advantaged students and students who attend socio … performance among students and schools, other factors are more important in determining the performance of school systems as a …