Timothy P Daaleman1, Bruce B Frey. 1. Department of Family Medicine, Program on Aging, Disability, and Long-Term Care, Cecil G. Sheps Center for Health Services Research, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7595, USA. tim_daaleman@med.unc.edu
Abstract
PURPOSE: Despite considerable interest in examining spirituality in health-related quality-of-life studies, there is a paucity of instruments that measure this construct. The objective of this study was to test a valid and reliable measure of spirituality that would be useful in patient populations. METHODS: We conducted a multisite, cross-sectional survey using systematic sampling of adult outpatients at primary care clinic sites in the Kansas City metropolitan area (N = 523). We determined the instrument reliability (Cronbach's alpha, test-retest) and validity (confirmatory factor analysis, convergent and discriminant validation) of the Spirituality Index of Well-Being (SIWB). RESULTS: The SIWB contains 12 items: 6 from a self-efficacy domain and 6 from a life scheme domain. Confirmatory factor analysis found the following fit indices: chi2 (54, n = 508) = 508.35, P < .001; Comparative Fit Index = .98; Tucker-Lewis Index = .97; root mean square error of approximation = .13. The index had the following reliability results: for the self-efficacy subscale, alpha = .86 and test-retest r = 0.77; for the life scheme subscale, alpha = .89 and test-retest r = 0.86; and for the total scale alpha = .91 and test-retest r = 0.79, showing very good reliability. The SIWB had significant and expected correlations with other quality-of-life instruments that measure well-being or spirituality: Zung Depression Scale (r = 0-.42, P < .001), General Well-Being Scale (r = 0.64, P < .001), and Spiritual Well-Being Scale (SWB) (r = 0.62, P < .001). There was a modest correlation between the religious well-being subscale of the SWB and the SIWB (r = 0.35, P < .001). CONCLUSIONS: The Spirituality Index of Well-Being is a valid and reliable instrument that can be used in health-related quality-of-life studies.
PURPOSE: Despite considerable interest in examining spirituality in health-related quality-of-life studies, there is a paucity of instruments that measure this construct. The objective of this study was to test a valid and reliable measure of spirituality that would be useful in patient populations. METHODS: We conducted a multisite, cross-sectional survey using systematic sampling of adult outpatients at primary care clinic sites in the Kansas City metropolitan area (N = 523). We determined the instrument reliability (Cronbach's alpha, test-retest) and validity (confirmatory factor analysis, convergent and discriminant validation) of the Spirituality Index of Well-Being (SIWB). RESULTS: The SIWB contains 12 items: 6 from a self-efficacy domain and 6 from a life scheme domain. Confirmatory factor analysis found the following fit indices: chi2 (54, n = 508) = 508.35, P < .001; Comparative Fit Index = .98; Tucker-Lewis Index = .97; root mean square error of approximation = .13. The index had the following reliability results: for the self-efficacy subscale, alpha = .86 and test-retest r = 0.77; for the life scheme subscale, alpha = .89 and test-retest r = 0.86; and for the total scale alpha = .91 and test-retest r = 0.79, showing very good reliability. The SIWB had significant and expected correlations with other quality-of-life instruments that measure well-being or spirituality: Zung Depression Scale (r = 0-.42, P < .001), General Well-Being Scale (r = 0.64, P < .001), and Spiritual Well-Being Scale (SWB) (r = 0.62, P < .001). There was a modest correlation between the religious well-being subscale of the SWB and the SIWB (r = 0.35, P < .001). CONCLUSIONS: The Spirituality Index of Well-Being is a valid and reliable instrument that can be used in health-related quality-of-life studies.
Authors: Andrew Tomita; Nigel Garrett; Lise Werner; Jonathan K Burns; Nelisiwe Ngcobo; Nomthandazo Zuma; Koleka Mlisana; Francois van Loggerenberg; Salim S Abdool Karim Journal: AIDS Behav Date: 2014-09
Authors: Anna Vespa; Roberta Spatuzzi; Fabiana Merico; Marica Ottaviani; Paolo Fabbietti; Cristina Meloni; Letizia Raucci; Marcello Ricciuti; Domenico Bilancia; Giuseppe Pelliccioni; Maria Velia Giulietti Journal: Support Care Cancer Date: 2018-02-19 Impact factor: 3.603