TY - JOUR
T1 - Developing an instrument to measure physical activity related self-worth in women
T2 - Rasch analysis of the Women's Physical Activity Self-Worth Inventory (WPASWI)
AU - Huberty, Jennifer
AU - Vener, Jamie
AU - Gao, Yong
AU - Matthews, Justin L.
AU - Ransdell, Lynda
AU - Elavsky, Steriani
PY - 2013/1
Y1 - 2013/1
N2 - 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 = 0.90, 0.87 and 0.72) and test-re-test reliability (r= 0.79, 0.70, 0.81). 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< 0.01) and correlations between Knowledge, Emotional, and Social SW subscales and General SW were 0.207, 0.130, and 0.220, respectively. PA Knowledge and PA Emotional SW had stronger correlations with PA (r= 0.344, 0.273, respectively) than did General SW (r= 0.133). Conclusions: The WPASWI demonstrated good internal consistency, reliability, construct validity and a stronger relationship with PA than a General SW instrument.
AB - 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 = 0.90, 0.87 and 0.72) and test-re-test reliability (r= 0.79, 0.70, 0.81). 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< 0.01) and correlations between Knowledge, Emotional, and Social SW subscales and General SW were 0.207, 0.130, and 0.220, respectively. PA Knowledge and PA Emotional SW had stronger correlations with PA (r= 0.344, 0.273, respectively) than did General SW (r= 0.133). Conclusions: The WPASWI demonstrated good internal consistency, reliability, construct validity and a stronger relationship with PA than a General SW instrument.
KW - Assessment
KW - Methods
KW - Tool
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U2 - 10.1016/j.psychsport.2012.07.009
DO - 10.1016/j.psychsport.2012.07.009
M3 - Article
AN - SCOPUS:84866983243
SN - 1469-0292
VL - 14
SP - 111
EP - 121
JO - Psychology of Sport and Exercise
JF - Psychology of Sport and Exercise
IS - 1
ER -