Alex Cohen is the Director of Learning and Evaluation for the Richard M. Fairbanks Foundation. High-performing school leaders have a substantial impact on student achievement. Studies that aim to isolate the impact of leaders on student test scores find that moving from a low- to a high-quality principal can mean several additional months of learning. […]

As a state and as a country, we should focus on identifying and quantifying root causes of poor reading outcomes and be transparent about what the data reveal.