Psychometric testing of four transtheoretical model questionnaires for the behavior, completing health care proxies

Authors

  • Mary Ann Jezewski,

    Corresponding author
    1. School of Nursing, University at Buffalo, The State University of New York, 201C Wende Hall, Buffalo, NY 14214
    • School of Nursing, University at Buffalo, The State University of New York, 201C Wende Hall, Buffalo, NY 14214.
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    • Professor; Associate Dean for Research.

  • Deborah S. Finnell,

    1. School of Nursing, University at Buffalo, The State University of New York, 201C Wende Hall, Buffalo, NY 14214
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    • Assistant Professor.

  • Yow-Wu Bill Wu,

    1. School of Nursing, University at Buffalo, The State University of New York, 201C Wende Hall, Buffalo, NY 14214
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    • Associate Professor.

  • Mary Ann Meeker,

    1. School of Nursing, University at Buffalo, The State University of New York, 201C Wende Hall, Buffalo, NY 14214
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    • Professor; Associate Dean for Research.

  • Loralee Sessanna,

    1. School of Nursing, University at Buffalo, The State University of New York, 201C Wende Hall, Buffalo, NY 14214
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    • Research Assistant Professor.

  • Jongwon Lee

    1. University of New Mexico, Albuquerque, NM
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    • Professor; Associate Dean for Research.


  • The authors thank Dr. Mark Robbins the consultant on this study who also served on the expert panel and Drs. Prochaska, DiClemente, Connors, Lennegan, and Rosemary Collins for their contributions on the expert panel.

Abstract

The purpose of the study was to develop four questionnaires based on the transtheoretical model (TTM) to assess the behavior, completing a healthcare proxy (HCP). The aims were to (a) operationalize the four TTM constructs for completing a HCP and (b) evaluate the psychometric properties of the questionnaires. The questionnaires were constructed and content validity established using an expert panel. Internal consistency values for each questionnaire and subscales within each questionnaire were >.79. Confirmatory factor analysis provided evidence that decisional balance and the processes of change questionnaires each contained two factors. Our data support validity and reliability of the TTM questionnaires related to HCP completion. © 2009 Wiley Periodicals, Inc. Res Nurs Health 32:606–620, 2009

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