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    PROMIS® General Life Satisfaction scale: construct validity in musculoskeletal pain patients

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    Author
    Vaughan, B; Mulcahy, J; Fitzgerald, K
    Date
    2020-12
    Source Title
    Chiropractic & Manual Therapies
    Publisher
    Springer Science and Business Media LLC
    University of Melbourne Author/s
    Vaughan, Brett
    Affiliation
    Medical Education
    Metadata
    Show full item record
    Document Type
    Journal Article
    Citations
    Vaughan, B., Mulcahy, J. & Fitzgerald, K. (2020). PROMIS® General Life Satisfaction scale: construct validity in musculoskeletal pain patients. Chiropractic & Manual Therapies, 28 (1), https://doi.org/10.1186/s12998-020-00320-x.
    Access Status
    Open Access
    URI
    http://hdl.handle.net/11343/240568
    DOI
    10.1186/s12998-020-00320-x
    Open Access URL
    https://protect-au.mimecast.com/s/cIp4CP7yBlsK5Y9D9HzHlRF?domain=rdcu.be
    Open Access at PMC
    http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7296662
    Abstract
    Background: Life satisfaction is part of subjective well-being. Measurement of life satisfaction is undertaken using self-report measures. This study aimed to evaluate the structural validity, concurrent validity, and internal structure of the PROMIS® General Life Satisfaction Scale (GLSS) in a musculoskeletal pain cohort. Method: Consecutive new patients attending the Victoria University Osteopathy Clinic (Melbourne, Australia) were invited to complete the GLSS prior to their initial consultation. Structural validity and internal structure were explored using confirmatory factor analysis and Mokken scale analysis. Concurrent validity was evaluated against a single-item measure of life satisfaction. Results: The PROMIS® GLSS comprised a single factor and formed an acceptable Mokken scale in this population. No differential item functioning was observed. A large positive correlation (r = 0.70) was observed between the General Life Satisfaction scale and a single-item measure of life satisfaction. Conclusions: The PROMIS® General Life Satisfaction scale demonstrated acceptable internal structure and structural validity in a musculoskeletal pain population. Additional research is required to explore concurrent validity and other measurement properties, however initial data suggests the measure could be a feasible screen of life satisfaction for Australian osteopathic patients.

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