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…

Across the United States, business leaders and educators agree that too many high school students are graduating without the skills they need to succeed in the workplace or in higher education. This lack of preparation leads to problems in meeting the needs of the economy, and it means remedial classes for college freshmen. Included in this…