The study described further evaluates the use of the Holmes & Dickerson linear analougue self- assessment scale in asessing the quality of both in -patients and out-patients undergoing radiotherapy for the treatment of malignant disease. The scale is shown to be feasible for use in both clinical settings and to be noth reliable and valid. It is quick to use, easy to score and demonstrates marked differences between the patient populations, These differences are discussed and supported on clinical grounds. The results emphasize the fact that cancer patients cannot be regarded as a homogeneous group and highlight the need for care to cannot be planned on an indicidual basis. Similarly, the need for a means by which individual response can be assessed is demonstrated. It is suggested that this self- assessment technique may be of considerable value in such assessment