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What is the DCDQ?
The Developmental Coordination Disorder Questionnaire (the DCDQ) is a brief parent questionnaire designed to screen for coordination disorders in children, aged 5 to 15 years. It was originally developed in the late 90’s at the Alberta Children’s Hospital, Calgary, Alberta, Canada. This coordination assessment was reported in:
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Wilson, B.N., Kaplan, B.J., Crawford, S.G., Campbell, A. and Dewey, D. (2000). Reliability and validity |
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of a parent questionnaire on childhood motor skills. American Journal of
Occupational Therapy, 54:5, 484-493. |
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Through further study with a population-based sample of children in the last few years, a Revision has been developed - the DCDQ'07 - which is available on this web site.
The DCDQ'07 was designed to extend the age range to children aged 5 to 7 years, to revise items to ensure clarity, to develop new scoring, and to evaluate the validity of the revised questionnaire. To accomplish this, 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. The expanded questionnaire was completed by the parents of 287 children, aged 5-15 years, who were typically developing. Logistic regression modelling was used to generate separate cut-off scores for three age groups (overall sensitivity = 85%; overall specificity = 71%).
The Revised DCDQ'07 was then compared to other standardized measures in a sample of 232 clinically-referred children. Differences in scores on the DCDQ between children with and without coordination problems provide evidence of construct validity. Concurrent validity was evident with the Movement Assessment Battery for Children (MABC) and with the Test of Visual Motor Integration (VMI). The revised DCDQ'07 can be considered a valid clinical screening tool for children who have coordination challenges.
A pre-print version of the full report is available here; the published report can be found at:
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Wilson, B.N., Crawford, S.G., Green, D., Roberts, G., Aylott, A. and Kaplan, B.J. (2009) |
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Psychometric Properties of the Revised Developmental Coordination Disorder
Questionnaire. Physical and Occupational Therapy in Pediatrics, 29(2): 182-202. DOI: 10.1080/01942630902784761
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The DCDQ’07 is available for download, with brief instructions for Administration and Scoring. An Administration Manual with evidence of the psychometric properties of this instrument is also available on this site.
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