Abstract
Summary: The predictive value of the NOSIE, a ward behaviour rating scale, was investigated in a group of long-stay patients. After a follow-up period of 3 ½ years, it was found that all NOSIE scales differentiated continuing in-patients from those discharged. Regression analysis showed that age and florid psychoticism carried most predictive weight. These findings and the value of reliable rating scales for rehabilitation purposes are discussed.