Robert F. DeVellis

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Books by Robert F. DeVellis (50 max)

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Scale development: theory and applications

1991

Robert F. DeVellis

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Scale Development Theory and Applications

1991

Robert F. DeVellis

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BUNDLE : Fowler : Survey Research Methods 4e + Kremelberg : Practical Statistics + Devellis : Scale Development 2e + Converse : Survey Questions + Spector: Summated Rating Scale Construction

2010

Floyd J. Fowler, David Kremelberg, Robert F. DeVellis, Jean M. Converse, Paul E. Spector

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Scale development theory and applications

2012

Robert F. DeVellis