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.
Publications
Methodology
April, 2011
Methodology
Methodological Lessons from an Evaluation of Accelerated Schools
October, 2001
Methodology
Planning for the Jobs-Plus Demonstration
October, 1999
Methodology
A How-To Guide for Planners and Providers of Welfare-to-Work and Other Employment and Training Programs.
October, 1998