Strategies to Approximate Random Sampling and Assignment

Paperback | November 12, 2009

byPatrick Dattalo

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Random sampling and random assignment are considered by many researchers to be the definitive methodological procedures for maximizing external and internal validity. However, there is a daunting list of legal, ethical, and practical barriers to implementing random sampling and randomassignment. While there are no easy ways to overcome these barriers, social workers should seek and utilize strategies that minimize sampling and assignment bias. These methodological and statistical strategies form the book's core. In step-by-step chapters liberally illustrated with examples using a variety of software packages, Dattalo guides readers in selecting and implementing an appropriate strategy. Readers will gain confidence in using such techniques as exemplar sampling, sequential sampling, randomization tests,multiple imputation, mean-score logistic regression, partial randomization, constructed comparison groups, instrumental variables methods, and propensity scores. Each approach will be cataloged in such a way as to highlight its underlying assumptions, implementation strategies, and strengths andweaknesses. Screen shots, annotated resources, and a companion website make this a valuable tool for students, teachers, and researchers seeking a single source that provides a diverse set of tools that will maximize a study's validity when random sampling and random assignment are neither possible norpractical.

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Random sampling and random assignment are considered by many researchers to be the definitive methodological procedures for maximizing external and internal validity. However, there is a daunting list of legal, ethical, and practical barriers to implementing random sampling and randomassignment. While there are no easy ways to overcome...

Patrick Dattalo, Ph.D. is an Associate Professor in the School of Social Work at Virginia Commonwealth University.

other books by Patrick Dattalo

Format:PaperbackDimensions:216 pages, 5.51 × 8.19 × 0.51 inPublished:November 12, 2009Publisher:Oxford University PressLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0195378350

ISBN - 13:9780195378351

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Table of Contents

1. Basic Concepts, Organization of Book, and Assumptions2. Methodological Alternatives and Supplements to Random Sampling3. Statistical Alternatives and Supplements to Random Sampling4. Methodological Alternatives and Supplements to Random Assignment5. Alternatives and Complementary Strategies to Random Assignment6. Summary and ConclusionsAnnotated BibliographyReferences