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Article
Developing an Instrument to Measure Physical Activity Related Self-Worth in Women: Rasch Analysis of the Women's Physical Activity Self-Worth Inventory (WPASWI)
Psychology of Sport and Exercise
  • Jennifer Huberty, University of Nebraska at Omaha
  • Jamie Vener, Southern Oregon University
  • Yong Gao, Boise State University
  • Justin Matthews, University of California
  • Lynda Ransdell, Boise State University
  • Steriani Elavsky, Pennsylvania State University
Document Type
Article
Publication Date
1-1-2013
Disciplines
Abstract
Objectives: The objective of this study is to report on the development of an instrument to assess non-physical aspects of physical activity (PA) -related self-worth (SW). Methods: Three hundred thirty five women (mean age = 36.69 ± 15.94 yrs, BMI = 24.87 ± 4.56) completed the Women’s Physical Activity Self-Worth Inventory (WPASWI), General SW Scale, and a PA Questionnaire. Rasch analysis was used to evaluate the WPASWI. Results: Three PA-related SW subscales were identified: PA Knowledge (16 items), PA Emotional (13 items), and PA Social (8 items). Rasch analysis supported construct validity, and items demonstrated acceptable internal consistency (Cronbach’s alpha = .90, .87 and .72) and test re-test reliability (r = .79, .70, .81). Women who reported regular PA participation had higher PA Knowledge, PA Emotional, PA Social, and General SW than those who reported some or no PA (p < .01) and correlations between Knowledge, Emotional, and Social SW subscales and General SW were .207, .130, and .220, respectively. PA Knowledge and PA Emotional SW had stronger correlations with PA (r = .344, .273, respectively) than did General SW (r = .133). Conclusions: The WPASWI demonstrated good internal consistency, reliability, construct validity and a stronger relationship with PA than a General SW instrument.
Copyright Statement

NOTICE: this is the author's version of a work that was accepted for publication in Psychology of Sport and Exercise. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Psychology of Sport and Exercise, 14(1), 2012. DOI: 10.1016/j.psychsport.2012.07.009

Citation Information
Jennifer Huberty, Jamie Vener, Yong Gao, Justin Matthews, et al.. "Developing an Instrument to Measure Physical Activity Related Self-Worth in Women: Rasch Analysis of the Women's Physical Activity Self-Worth Inventory (WPASWI)" Psychology of Sport and Exercise (2013)
Available at: http://works.bepress.com/yong_gao/22/