Improving school quality is a well-established way to improve student learning. But one specific approach is understudied: school finance reform. This project will examine state-level school finance reforms, intended to increase funding for schools serving poor children, over the past several decades. If school financing matters, then reforms that equalize funding will also tend to equalize student achievement across districts. This researcher will study the effects of these reforms on the absolute and relative test scores of students in low-income school districts. Policymakers can then understand if these reforms boost overall scores as well as reduce the inequality of outcomes.