The Moderation Role of Transformational Leadership in the Effect of Instructional Leadership on Teacher Professional Learning and Instructional Practice: An Integrated Leadership Perspective

Aim: While integrated leadership has received significant scholarly attention in the past decade, most existing research in this vein has focused on its impact on student achievement and often dismissed how it might be related to instructional practices, which are at the center of many school reforms. In this research, we examined the relationship between integrated leadership and teacher professional learning and teacher practices in Turkey, where educational policy makers have recently introduced several school reform initiatives. More specifically, we aimed to examine the moderating function of transformational leadership in the relationship between instructional leadership and teacher practices, with an emphasis on the mediating role of teacher professional learning. Research Design: We conducted this study with a cross-sectional design and moderated mediation model. Data collected from 616 teachers working in a mix of primary and secondary schools in Turkey were analyzed using structural equation modeling and bootstrapping tests. Findings: We found evidence that transformational leadership acted as a moderator of the indirect effect of principal instructional leadership on teachers' instructional practices through teacher professional learning. Implications: This study adds to the accumulated body of knowledge on the effects of school leadership by concluding that the effect of instructional leadership on teacher learning and practice is contingent upon the extent to which principals enact transformational leadership. School principals who adopt a more comprehensive leadership approach that combines instructional leadership and transformational leadership practices can maximize their effects on student achievement through teacher learning, and better address the ever-growing demands of educational reforms.