SummaryFor113 managerial personnel, a new supervisory judgment test, theLeadership Evaluation and Development Scale(LEADS) was found to be the best (r = .36) of four predictors of salary corrected for age and length of service. Other predictors were a verbal comprehension measure and the twoLeadership Opinion Questionnairescores. TheRinvolving all four predictors was .39. LEADS was also found to be the best predictor of personnel department ratings on performance in the employee relations area. None of the predictors was significantly related to supervisors' ratings. Meaningful dimensions of supervisory performance not indicated by the other predictors appear to be measured by LEADS.