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Publications

Methodology

New Empirical Evidence for the Design of Group Randomized Trials in Education

December, 2009

This paper provides practical guidance for researchers who are designing studies that randomize groups to measure the impacts of educational interventions.

Methodology

Sample Design for an Evaluation of the Reading First Program

March, 2003

This paper illustrates how to design an experimental sample for measuring the effects of educational programs when whole schools are randomized to a program and control group. It addresses such issues as what number of schools should be randomized, how many students per school are needed, and what is the best mix of program and control schools.