For much of the 20th century, British students were tracked into higher-track (for the "top" 20%) or lower-track (for the rest) secondary schools. Opponents of tracking contend that the lower-track schools in these systems will inevitably provide low-quality education. In this paper I examine...

We use a new empirical strategy to test various measures of school effectiveness in England. Our approach exploits discontinuities in attendance probabilities that occur at unpredictable distance cutoffs used as tiebreakers in admissions processes for oversubscribed schools. We show that raw,...