Background: Cluster-randomized experiments that assign intact groups such as schools or school districts to treatment conditions are increasingly common in educational research. Such experiments are inherently multilevel designs whose sensitivity (statistical power and precision of estimates) depends on the variance decomposition across levels.…

Over nearly three decades, the Public Policy Forum has collected and analyzed education data to report on the demographics, academic performance, and finances of public schools and districts in southeast Wisconsin. This 29th annual public schools report continues that tradition with updated analyses of new data and trends to shed light on the…