Background: Access to Advanced Placement (AP) courses is stratified by class and race. Researchers have identified how schools serving disadvantaged students suffer from various kinds of resource deprivations, concluding that interventions are needed to equalize access to AP courses. On the other hand, the theory of Effectively Maintained…

Context: The desire to provide useful, research-based information to policy makers and teachers poses a series of challenges for education researchers. These challenges include striking a balance between complexity and simplicity in the portrayal of teaching, addressing the potential conditional nature of what constitutes quality teaching, and…