Primary objectives:(i) To assess the measurement properties of the high-level mobility
assessment tool (HiMAT) for people with traumatic brain injury (TBI),(ii) to measure the
extent to which the HiMAT is a uni-dimensional, discriminative hierarchical outcome scale.
Research design: The content validity was assessed using a three-stage process of
investigating internal consistency, factor analysis and Rasch analysis. The uni-
dimensionality of the HiMAT items was also tested. Discriminability was investigated by …

Primary objective: To generate a comprehensive list of items for a scale suitable for
assessing high-level mobility in people with traumatic brain injury (TBI). Research design:
High-level mobility items were generated following a critical evaluation of existing adult and
paediatric mobility scales and by surveying expert clinicians for opinions about items
appropriate for inclusion on a high-level mobility scale. Main outcomes and results: The
critical evaluation identified 18 different items from 31 mobility scales. These included nine …