Using Covariates to Improve Precision: Empirical Guidance for Studies That Randomize Schools to Measure the Impacts of Educational Interventions
Publication Date: November 2005
Publisher(s): MDRC (Organization)
Keywords: Educational Studies
Coverage: United States
This paper examines how controlling statistically for baseline covariates (especially pretests) improves the precision of studies that randomize schools to measure the impacts of educational interventions on student achievement.