Article

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 rs=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.

Langue : ANGLAIS