SummarySixty‐Threeadministrators in the Italian Civil Service were rated by their peers on 18 traits pertaining to their job performance. The intercorrelations among persons were computed and cluster analysed. Each man was scored in terms of the degree to which his pattern of traits was dissimilar to those characterizing men in any of the clusters. The coefficient of correlation between these values, termed measures of individuality, and over‐all job success was found to be .