The multiple and complex problems of the head injured patient require comprehensive and systematic evaluation. While physical and psychological assessments are well established, there is a notable absence of adequately standardised assessments of functional ability for clinical application by occupational therapists. Accordingly, a battery of tests has been devised covering four major areas of functional ability: visual perception; constructional ability; sensorimotor function; and execution of complex instructions. A comparison of the performance of 40 head injured patients with 40 controls is described. Significant group differences were evident for overall performance (representing ability and time factors) on all 12 tests of the battery with the head injured group exhibiting a wide range of problems. The implications of these results and the role of the assessment battery in diagnosis, treatment, and evaluation are discussed.

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