Early education programs are increasingly being promoted by states and the federal government as an integral part of their efforts to ensure that all children enter school ready to learn. As these programs and their enrollments have grown in recent years, so too have efforts to monitor their quality and performance. A common focus is on…

Policymakers and school administrators have embraced value-added models of teacher effectiveness as tools for educational improvement. Teacher value-added estimates may be viewed as complicated scores of a certain kind. This suggests using a test validation model to examine their reliability and validity. Validation begins with an interpretive…