Chapter

Statistical Alternatives and Supplements to Random Assignment

Patrick Dattalo

in Strategies to Approximate Random Sampling and Assignment

Published in print October 2009 | ISBN: 9780195378351
Published online February 2010 | e-ISBN: 9780199864645 | DOI: https://dx.doi.org/10.1093/acprof:oso/9780195378351.003.0005

Series: Pocket Guides to Social Work Research Methods

 Statistical Alternatives and Supplements to Random Assignment

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This chapter describes the following alternatives and complements to RA in terms of their assumptions, implementations, strengths, and weaknesses: (1) constructed comparison group; (2) propensity scores; and (3) instrumental variables methods. Constructed comparison groups are statistical alternatives to RA. Propensity scores are statistical alternatives and supplements to RA. Instrumental variables methods are statistical alternatives and supplements to RA.

Keywords: constructed comparison group; expected post–pretest difference; propensity score matching; instrumental variables methods; exclusion restriction

Chapter.  7549 words.  Illustrated.

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