Background: In the immediate aftermath of school closures related to COVID-19, efforts to unpack the impact of the pandemic on student outcomes surged. As schools have returned to fully in-person learning, that focus has shifted towards the implementation and evaluation of interventions to remediate or accelerate impacted learning. However,…

Introduction: The What Works Clearinghouse (WWC) reviews rigorous research on educational interventions with a goal of identifying "what works" and making that information accessible to educators and policymakers. The WWC has historically prioritized internal validity over external validity in rating the quality of research. One critique…

Background/Context: High school mathematics attainment has significant consequences for postsecondary and labor market outcomes (Altonji, 1995; Dougherty et al., 2017; Goodman, 2019; Kim, 2018; Long et al., 2012) yet enrollment in advanced courses (i.e., those requiring completion of Algebra II) is starkly stratified by race, class, and ethnicity…