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Psychometric Properties of 2 Participation Measures in Veterans With Mild Traumatic Brain Injury

      Abstract

      Objective

      To compare the psychometric properties of 2 commonly used participation measures: the Community Reintegration of Service Members (CRIS) and the Participation Assessment with Recombined Tools-Objective (PART-O) in veterans with mild traumatic brain injury (mTBI).

      Design

      Data were collected from 2 cross-sectional observation studies conducted in 2 Veterans Affairs medical centers.

      Setting

      Questionnaires were completed in-person or by mail.

      Participants

      Veterans with mTBI (N=201) were recruited from the Michael E. DeBakey Veterans Affairs Medical Center in Houston (n=94) and the Malcom Randall North Florida/South Georgia Veterans Health System (n=107).

      Interventions

      Not applicable.

      Main Outcome Measures

      CRIS and PART-O.

      Results

      We conducted Rasch analysis on the PART-O and on 3 subscales of the CRIS (extent of participation, perceived limitation, and satisfaction). For PART-O, results showed PART-O has questionable unidimensionality. For both instruments, some rating categories were underused, and rating scales did not advance accordingly. Compared with PART-O, the CRIS was able to distinguish more categories of person's ability (>5 vs 2 for PART-O) and had better internal consistency as indicated by higher Cronbach α (.96–.98 vs .65 for PART-O).

      Conclusions

      To capture participation unique to veterans with mTBI, CRIS has greater potential to detect a change in participation and is therefore recommended over PART-O. Rating scales of both instruments, however, need further refinement. We suggest future studies examine collapsed rating categories and use qualitative methods to redefine categories.

      Keywords

      List of abbreviations:

      CRIS (Community Reintegration of Service Members), mTBI (mild traumatic brain injury), PART-O (Participation Assessment with Recombined Tools-Objective), TBI (traumatic brain injury), TBIMS (Traumatic Brain Injury Model Systems)
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