Though schools do not track in Brazil, I find that black/white classroom segregation in Brazil is greater than recent estimates from North Carolina high schools (Clotfelter et al., 2020). How does race-based classroom segregation occur without tracking, and in a supposed "racial paradise," no less? Using national, student-level data…

To better understand the longitudinal relations between risk and relationship variables during early to middle adolescence, we employed latent variable cross-lagged panel models using data (N = 1,050) from the National Institute of Child Health and Human Development Study. Results showed self-reported individual risk behavior ([beta] = 0.77-0.88)…

The WCPSS Student Survey is administered each year to measure students' perceptions about their learning experiences. Over 24,000 students in grades 5, 8, and 9 responded to the 51-item survey in the spring of 2018. Results by grade were very similar to 2017 survey results. The majority of students had positive perceptions of their schools and…

The Wake County Public School System (WCPSS) Student Survey is administered each year to measure students' perceptions about their learning experiences. Over 28,000 students in grades 5, 8, and 9 responded to the 50-item survey in the spring of 2017. Results by grade were very similar to 2016 survey results. The majority of students had positive…

The Wake County Public School System (WCPSS) Student Survey is administered each year to measure students' perceptions about their learning experiences. In 2014-15, the content of the survey, as well as the grades to which it was administered, were changed to better capture measures of engagement and grit during students' transition years. Over…

Background: Cluster-randomized experiments that assign intact groups such as schools or school districts to treatment conditions are increasingly common in educational research. Such experiments are inherently multilevel designs whose sensitivity (statistical power and precision of estimates) depends on the variance decomposition across levels.…