Using Covariates to Improve Precision: Empirical Guidance for Studies That Randomize Schools to Measure the Impacts of Educational Interventions
Publication Date: November 2005
Publisher: MDRC (Organization)
Author(s): Howard S. Bloom; Lashawn Richburg-Hayes; Alison Rebeck Black
Research Area: Education
Keywords: Educational Studies
Type: Report
Coverage: United States
Abstract:
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.
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