The Detroit Public Schools (DPS) have been battered by substantial outside forces over the last decade. The school system was taken over by the state; its elected school board was dissolved and replaced by an appointed body; its many operating systems were privatized; its citizenry were encouraged to flee to charter schools; and its resources have…

This year the Center on Education Policy analyzed data on the achievement of different groups of students in two distinct ways. First, it looked at grade 4 test results to determine whether the performance of various groups improved at three achievement levels--basic and above, proficient and above, and advanced. Second, it looked at gaps between…