This article presents a latent class model for multilevel data to identify latent subgroups and estimate heterogeneous treatment effects. Unlike sequential approaches that partition data first and then estimate average treatment effects (ATEs) within classes, we employ a Bayesian procedure to jointly estimate mixing probability, selection, and…

What is "teaching to the test," and can one detect evidence of this practice in state test scores? This paper unpacks this concept and empirically investigates one variant of it by analyzing test item--level data from three states' mathematics and reading tests. We show that NCLB-era state tests predictably emphasized some state…

The purpose of the study was to explore the effectiveness of a brief, feasible, and cost-effective universal screener for kindergarten readiness. The study examined whether teacher ratings of kindergarteners' academic, behavioral, and overall readiness at the beginning of the year were predictive of academic, emotional, and behavioral outcomes at…