Article

The Developmental Coordination Disorder Questionnaire (DCDQ) is a
parent-completed measure designed to identify subtle motor problems in children
of 8 to 14.6 years of age. The purpose of this study was to extend the lower age
range to children aged 5 to 7 years, revise items to ensure clarity, develop new
scoring, and evaluate validity of the revised questionnaire. Additional items
with improved wording were generated by an expert panel. Analyses of internal
consistency, factor loading, and qualitative/quantitative feedback from
researchers, clinicians, and parents were used to select 15 items with the
strongest psychometric properties. Internal consistency was high (alpha = .94).
The expanded questionnaire was completed by the parents of 287 children, aged
5-15 years, who were typically developing. Logistic regression modeling was used
to generate separate cutoff scores for three age groups (overall sensitivity =
85%, specificity = 71%). The revised DCDQ was then compared to other standardized
measures in a sample of 232 children referred for therapy services. Differences
in scores between children with and without DCD (p < .001) provide evidence of
construct validity. Correlations between DCDQ scores and Movement Assessment
Battery for Children (r = .55) and Test of Visual-Motor Integration (r = .42)
scores support concurrent validity. The results provide evidence that the revised
DCDQ is a valid clinical screening tool for DCD.

Langue : ANGLAIS