Article

The purpose of this study was to evaluate the measurement properties of the Wheelchair Use
Confidence Scale for manual wheelchair users version 2.1 (WheelCon-M 2.1).
Design: Cohort study. Participants: Volunteer sample of 83 community-dwelling,
experienced manual wheelchair users. Methods: Participants completed the
WheelCon-M 2.1 twice to assess retest reliability. Validity was assessed by
evaluating hypothesized relationships between the WheelCon-M 2.1 and relevant
variables. Responsiveness was assessed using the standard error of measurement
(SEM) and smallest real difference (SRD).
Results: The median (interquartile
range) WheelCon-M 2.1 score was 84.6 (71.3-92.0) of a possible 0-100. The
one-week retest intraclass correlation coefficient was 0.84 with 95%
bias-corrected and accelerated confidence intervals of 0.77-0.90. Cronbach's
alpha was 0.92. Correlations ranging from rs = -0.19 (p = 0.780) to rs = 0.58 (p
< 0.001) were found between the WheelCon-M 2.1 and other relevant outcome
measures with all correlations being statistically significant except for age (p
= 0.780) and social support (p = 0.057). A statistically significant difference
was not found between the sexes (p = 0.140). The SEM and SRM were 5.9 and 16.4,
respectively. Conclusions: WheelCon-M 2.1 has high internal consistency, strong
retest reliability, and support for concurrent validity, construct validity and
responsiveness. This new test holds promise as a clinical and research tool.

Langue : ANGLAIS