Validity of the motor observation questionnaire for teachers as a screening instrument for children at risk for developmental coordination disorder Marina M. Schoemaker a, * , Boudien C.T. Flapper b , Heleen A. Reinders-Messelink c , Arend de Kloet d a Center for Human Movement Sciences, University Medical Center Groningen, University of Groningen, The Netherlands b Beatrix Children’s Hospital, Department of Pediatrics, University Medical Center Groningen, University of Groningen, The Netherlands c Rehabilitation Center ‘Revalidatie Friesland’, Beetsterzwaag, The Netherlands d Sophia Rehabilitation, The Hague, The Netherlands Available online 17 March 2008 Abstract This study investigates validity of the Motor Observation Questionnaire for Teachers (MOQ-T) in 182 children aged 5–10 years, 91 children referred for motor problems to a rehabilitation center and 91 comparison children. Performance on the MOQ-T was compared to performance on the Movement Assessment Battery for Children (M-ABC) and the Developmental Coordination Disor- der Questionnaire (DCD-Q). Significant correlations were obtained between the MOQ-T and the DCD-Q (r = À.63), and the MOQ-T and the M-ABC (r = .57). The MOQ-T discriminated between children at risk for DCD and comparison children. Sensitivity of the MOQ-T was 80.5%, specificity 62% with the M-ABC as ‘gold standard’. These results support the validity of the MOQ-T as a screening instrument for identification of children at risk for DCD. Ó 2008 Elsevier B.V. All rights reserved. PsychINFO classification: 2221; 2800; 3250 Keywords: Validity; DCD; MOQ-T; M-ABC; DCD-Q 0167-9457/$ - see front matter Ó 2008 Elsevier B.V. All rights reserved. doi:10.1016/j.humov.2008.02.003 * Corresponding author. Tel.: +31 50 3632651; fax: +31 50 3633150. E-mail address: M.M.Schoemaker@RUG.NL (M.M. Schoemaker). Available online at www.sciencedirect.com Human Movement Science 27 (2008) 190–199 www.elsevier.com/locate/humov