Adaptation of the MABC-2 Test (Age Band 2) for children with low vision

Abstract Background The tools used to assess motor performance in children with low vision often have no validity and reliability data concerning this population and use non-standardized modifications. Adaptations of these tools could help to identify motor problems and mitigate their effects. Aim To assess aspects of validity and reliability in an adaptation of the Movement ABC-2 Test (MABC-2) for children with low vision. Methods and procedures The research was undertaken in two stages: 1) application of the original MABC-2 to 10 children with low vision, adaptation and pilot test; 2) administration and re-administration of the adapted MABC-2 in 30 children with low vision. Inter-rater reliability and test-retest reliability were assessed with an intraclass correlation coefficient and Kappa index; internal consistency was assessed with Cronbach's alpha. Outcomes and results Substantial to almost perfect inter-rater reliability was found between the component standard scores and a reasonable to excellent concordance rate in the classification of movement difficulty. The adapted tool has moderate internal consistency. Conclusions and implications The adapted MABC-2 Test has improved the assessment of motor performance in children with low vision.