Using Covariates to Improve Precision [electronic resource] : Empirical Guidance for Studies That Randomize Schools to Measure the Impacts of Educational Interventions. MDRC Working Papers on Research Methodology / Howard S. Bloom, Lashawn Richburg-Hayes and Alison Rebeck Black.

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. Part I of the paper introduces the concepts, issues, and options involv...

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Bibliographic Details

Online Access:	Full Text (via ERIC)
Main Author:	Bloom, Howard S.
Corporate Author:	Manpower Demonstration Research Corporation
Other Authors:	Richburg Hayes, Lashawn K., 1973-, Black, Alison Rebeck
Format:	Electronic eBook
Language:	English
Published:	[Place of publication not identified] : Distributed by ERIC Clearinghouse, 2005.
Subjects:	Program Effectiveness. Reading Achievement. Mathematics Achievement. Research Methodology. Urban Schools. Educational Assessment. Program Evaluation. Statistical Analysis. Pretests Posttests. Research Design.