The purpose of this paper is to showcase new research that seeks to provide guidance on the heterogeneity of treatment effects by utilizing the variance of demographic differences in state assessments. This study is focused on a simple randomized block design where students are nested within schools, and within each school students are randomized…

This research and policy brief draws on the experiences in five states, each of which has been the subject of a comprehensive arts education survey in recent years. The states are Illinois, Kentucky, New Jersey, Rhode Island, and Washington. Distilled from the "lessons learned," the brief provides 20 principles designed to inform and…