Developing a responsive measure of change for paediatric brain injury inpatient rehabilitation

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Abstract
Primary objective : To describe conceptual and methodological issues to be addressed in developing a responsive clinical performance measure for paediatric brain injury inpatient rehabilitation. Selected statistical approaches used to examine responsiveness of two functional activity scales (daily and social behavioural activity) of a prototype measure are presented to illustrate these issues. Research design : Retrospective chart review. Methods and procedures : Data on 65 children, aged 6 months to 18 years (X bar = 9.5 years) were collected during 1998 and 1999 from eight sites in the USA. Responsiveness was examined using effect sizes and a number of parametric and non-parametric tests. Main outcomes and results : Significant improvements from admission to discharge were found on all item and scale scores ( p < 0.001). Moderate significant relationships were found between activity scale change scores and external ratings of change. Conclusions : Findings provide evidence that the activity scales have the potential to be responsive and point to issues that will need to be addressed in future measurement development.

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