NWEA

This research uses interim assessment test results to measure the impact of prior year attendance on starting achievement the following year. Results show the impacts are significant and persistent.

Does entering school older give students an edge? New research suggests an early advantage may fade in later grades.

This study presents a framework that uses academic trajectories in the middle grades for identifying students in need of intervention and providing targeted support.

English Learners (ELs) lag behind their peers in postsecondary attainment. New research reports findings from the first three years of an intervention that offers Early College opportunities in high schools serving large EL populations.

This article explores the complexities teachers face in determining when English Learner students near the proficiency threshold should be reclassified, and provides important recent research findings to help guide the decision-making process.

Through a series of simulation and empirical studies, we produce scores in a single-cohort repeated measure design using sum scores as well as multiple IRT approaches and compare the recovery of growth estimates from longitudinal growth models using each set of scores.

In this study, we conducted empirical and simulation analyses in which we scored surveys using item response theory (IRT) models that do and do not account for response styles, and then used those different scores in growth models and compared results.