Psychometric Properties of the Turkish Form of a New Scale for Nurse Leaders: Coaching-Based Leadership Scale.

Background: In the current literature, no existing scale that can measure nurse specific coaching-based leadership has been found. Purpose: The study was conducted to determine the Turkish validity and reliability of the Coaching-Based Leadership Scale (CBLS). Methods: The research is methodological. The study was conducted in two sample groups for the employees' and leaders' versions of the scale. Results: The confirmatory factor analysis of the scale revealed that both the employees' and leaders' versions have a 16-item, four-factor structure, and the fit indices were confirmed as follows: for the employees' version: Chi-square (χ²) = 361.948, χ²/degrees of freedom (df) = 4.022, root mean square error of approximation (RMSEA) = 0.133, goodness of fit index (GFI) = 0.808, comparative fit index (CFI) = 0.941, Tucker-Lewis index (TLI) = 0.821, and standardized root mean square residual (SRMR) = 0.0317, and for the leaders' version: χ² = 180.121, χ²/df = 1.896, RMSEA = 0.104, GFI = 0.809, CFI = 0.970, TLI = 0.962, and SRMR = 0.0177. The obtained fit indices indicated a good fit. The scale-item-total score correlations were found to range from r = 0.816 to r = 0.952 for the employees' version and from r = 0.922 to r = 0.968 for the leaders' version, which were determined to be at an acceptable level. It was determined that the Cronbach's alpha (α) reliability coefficient of the scale was 0.98 in the employees' version and the Cronbach's α coefficients of its subdimensions were 0.93 for working alliance, 0.96 for open communication, 0.97 for learning and development, and 0.96 for progress and results. In the leaders' version, the Cronbach's α reliability coefficient was 0.99, while the Cronbach's α coefficients of its subdimensions were found to be 0.93 for working alliance, 0.96 for open communication, 0.97 for learning and development, and 0.96 for progress and results. Conclusion: It has been determined that the CBLS is a valid and reliable measurement tool for Turkish nursing employees and managers.