The purpose of this paper is to develop a leadership skills development model and measure, based on its effect on organizational effectiveness and moderator effect of knowledge sharing. Using the survey method, this paper investigates the validation of measures and model of the study. It tests the reliability and constructs validity of a leadership skills development measurement scale, created on the basis of the existing measures of leadership, organizational effectiveness and knowledge sharing. This scale is harmonized with transformational, transactional and servant leadership theories
