Article

The "gold standard" for measuring gross motor function in children
with cerebral palsy is the 66-item Gross Motor Function Measure (GMFM-66).
The purpose of this study was to estimate the validity and reliability
of 2 abbreviated versions of the GMFM-66; one version involves an item set
approach, and the other version involves a basal and ceiling approach. DESIGN:
This was a measurement study comprising concurrent validity, comparability, and
test-retest reliability components. The study participants were 26
children who were 2 to 6 years of age and had cerebral palsy across all Gross
Motor Function Classification System levels. In the first session, both
abbreviated versions were administered by 2 independent raters; next, the full
GMFM-66 was administered. In the second session, only the abbreviated versions
were administered by the same raters. Concurrent validity, comparability of
versions, and test-retest reliability were determined with intraclass correlation
coefficients [ICC (2,1)]. RESULTS: Both versions demonstrated high levels of
validity, with an ICC of .99 (95% confidence interval=0.972-0.997), reflecting
associations with the GMFM-66. Both versions also were shown to be highly
reliable, with ICCs of greater than .98 (95% confidence interval=0.965-0.994).
LIMITATIONS: A smaller-than-expected sample was recruited for this study and may
be a potential limitation of the study. CONCLUSION : Both versions of the GMFM-66
can be used in clinical practice or research. However, the GMFM-66 with the basal
and ceiling approach is recommended as the preferred abbreviated version.

Langue : ANGLAIS