This paper provides practical guidance for researchers who are designing and analyzing studies that randomize schools--which comprise three levels of clustering (students in classrooms in schools)--to measure intervention effects on student academic outcomes when information on the middle level (classrooms) is missing. This situation arises…

This report contains resources to help researchers and policymakers review measures used in NCEE evaluations of educational interventions. The measures included in the Compendium are applicable to settings for preschool through grade 12. The Compendium discusses criteria and their importance in selecting measures for assessing intervention impacts…

Over many decades, the efforts of researchers to understand key issues in the reading performance of those children most at risk for developing later reading problems has been relentless. This article presents the author's commentary to three studies: (1) Vanderwood, Linklater, and Healy (2008); (2) Edl, Jones, and Estell (2008); and (3) Baker et…

President Bush says that the No Child Left Behind Act is working, pointing to student-achievement results from a single subsection of the National Assessment of Educational Progress (NAEP) and tentative Reading First data. But the evidence available to support his claim is questionable. The data Mr. Bush cited are from just the "long-term…