Principals are essential to improving student achievement and narrowing persistent achievement gaps between students in underserved communities and their economically advantaged peers. The Every Student Succeeds Act provides opportunities for states to invest in developing and supporting effective school leaders. One such opportunity includes…

States are responsible for setting the minimum number of students needed to form a student subgroup for federal reporting and accountability purposes. This required student subgroup size is commonly referred to as the state-set "n-size." States should set this number as low as possible to maximize the number of student subgroups created.…