Abstract
There is a need for the evaluation of neurorehabilitation to reflect the integrated multidisciplinary input which is fundamental to the intervention process. The importance of multidisciplinary involvement in achieving this is discussed with particular reference to multiple sclerosis, which exemplifies the many problems inherent in chronic neurological disease that must be addressed in the evaluation of the rehabilitation programme. Some of the current difficulties of research in this specialty are raised, and suggestions made for the future.