Personality similarity between supervisors and subordinates: Its relationship to supervisor ratings of subordinates' customer-service work performance
Participants included 110 supervisor/subordinate dyads comprised of medical laboratory employees. First, a measure of customer-service work performance, called the Experimental Rating Form (ERF), was developed by the researcher based on job analysis data. Second, supervisors completed the ERF for each of their subordinates. Third, all participants completed the NEO-PI (Costa & McCrae, 1985) and the Social Interest Scale (SIS; Crandall, 1980). Difference scores between supervisors and subordinates for two of the five NEO-PI subscales, Agreeableness and Conscientiousness, were significant predictors of the ERF according to the results of Pearson correlation analyses. Differences scores for the SIS alone were not correlated with the ERF. However, a multiple regression analysis indicated that the composite group of difference scores for the five subscales of the NEO-PI and the single factor measured by the SIS were collectively significant predictors of ERF scores.