Validity and reliability testing of the Quality of Life Scale, Swedish version in women with fibromyalgia - Statistical analyses
2005 (English)In: Scandinavian Journal of Caring Sciences, ISSN 0283-9318, Vol. 19, no 1, 64-70 p.Article in journal (Refereed) Published
One consequence of constant widespread pain is a low quality of life. The purpose of the study was to examine whether the Quality of Life Scale, Swedish version (QOLS-S), regarded as a generic quality-of-life instrument, is a reliable and valid instrument for use in women with fibromyalgia (FM). Women with FM (n = 113) contributed data on the QOLS-S and other standardized instrument at three points in time. Internal consistency reliability estimates ranged from 0.89 to 0.92. Convergent construct validity was indicated by moderate agreement with a global life satisfaction question. Discriminant construct validity was denoted by low correlations with the physical functioning subscale of the SF-36. In a factor analysis three factors emerged: 'personal and social well-being', 'relations with others' and 'active participation'. A few of the items have high cross-loadings, and the instrument could be improved by rewording those items to more closely reflect one specific factor. Overall, these results provide evidence that the QOLS-S has acceptable validity and reliability for use in women with FM.
Place, publisher, year, edition, pages
2005. Vol. 19, no 1, 64-70 p.
National CategoryMedical and Health Sciences
IdentifiersURN: urn:nbn:se:liu:diva-29992DOI: 10.1111/j.1471-6712.2004.00311.xLocal ID: 15432OAI: oai:DiVA.org:liu-29992DiVA: diva2:250811