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Strategies to Approximate Random Sampling and Assignment

Patrick Dattalo

Published in print:
2009
Published Online:
February 2010
ISBN:
9780195378351
eISBN:
9780199864645
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195378351.001.0001
Subject:
Social Work, Research and Evaluation

Random sampling (RS) and random assignment (RA) are considered by many researchers to be the definitive methodological procedures for maximizing external and internal validity. However, there is a ... More


Methodological Alternatives and Supplements to Random Sampling

Patrick Dattalo

in Strategies to Approximate Random Sampling and Assignment

Published in print:
2009
Published Online:
February 2010
ISBN:
9780195378351
eISBN:
9780199864645
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195378351.003.0002
Subject:
Social Work, Research and Evaluation

This chapter begins with a discussion of external validity and sampling bias. Next, the rationale and limitations of RS as a way to maximize external validity and minimize sampling bias are ... More


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