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…

This project describes a 12-week program developed to improve student spelling of high frequency words for transfer in written work across the curriculum. The targeted population consists of kindergarten, first, and third graders in two public elementary schools in a community located in central Illinois. Following an extensive literature review,…