Validity and Reliability of the Nurse Manager Performance Assessment Scale

Abstract

Background: The performance of nurse managers is significantly important in providing quality and safe patient care services in hospitals, as well as in retaining the nurse workforce. There are limited number of measurement instruments for which validity and reliability have been tested in order to assess nurse managers' level of performance. Objective: This study was conducted to examine the psychometric testing of the “Nurse Manager Performance Assessment Scale,” which is used to assess the annual performance of nurse managers working in a private chain hospital group in Turkey. Method: The sample of this methodological study was composed of 165 nurse managers. The data were obtained from the Hospital Information Management System, retrospectively. Results: The average score of the eight-item scale items ranged between 3.3 (0.8) and 3.7 (0.8). The Cronbach's alpha coefficient, indicating the internal consistency, was found to be 0.943, while the Spearman-Brown coefficient, indicating intraclass consistency, was found to be 0.910. The two-factor scale obtained using exploratory factor analysis was examined using confirmatory factor analysis, and the model was found to be significant. Conclusion: In this study, the results of psychometric analysis of the “Nurse Manager Performance Assessment Scale,” which is used to assess the annual performance of nurse managers, indicated that the scale is a valid and reliable instrument. It is recommended that the scale be applied in different institutions and that it be tested in practice based on pilot application results.