Journal
JOURNAL OF REHABILITATION MEDICINE
Volume 43, Issue 7, Pages 609-618Publisher
FOUNDATION REHABILITATION INFORMATION
DOI: 10.2340/16501977-0829
Keywords
brain injuries; participation; community integration; assessment; psychometric properties
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Funding
- Motor Accidents Authority of New South Wales, Australia
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Objective: To examine the psychometric qualities and develop the clinical utility of the Sydney Psychosocial Reintegration Scale (SPRS) as a measure of participation in people with traumatic brain injury. Design: Data generated from previous prospective studies. Subjects/patients: Convenience samples of healthy community-based volunteers (n=105) and people with severe brain injury (n=510). Methods: (i) The equivalence of a new 5-point version of the SPRS was determined vs the original 7-point version; (ii) construct validity was tested using Rasch analyses; (iii) normative and comparative data tables were produced, and data examined for floor/ceiling effects; (iv) a reliable change index score was generated. Results: Patterns of psychometric properties for the 5- and 7-point versions were almost identical (e.g. total scores r(s) =0.98). Rasch analyses on Forms A and B found good fit to the model, for person (3.36 and 3.03, respectively) and item (7.78 and 7.25, respectively) separation; reliability coefficients were high (all >= 0.90). Mean infit statistics met standard criteria (between 0.7 and 1.3). No floor/ceiling effects were detected. The reliable change index value was calculated for the total score for Form A using logit scores, and a conversion table provided. Conclusion: The 5-point version of the SPRS demonstrates strong psychometric qualities as a measure of participation after traumatic brain injury.
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