Teacher leadership and educational performance: A review of key dimensions

Abstract

This narrative review synthesises evidence on teacher leadership and educational performance to clarify how leadership practices contribute to school improvement, teacher practice and student outcomes. The review focuses on instructional leadership, distributed leadership, teacher leadership, collective teacher efficacy and organisational routines as key dimensions in the leadership-performance relationship. Evidence from empirical studies, meta-analyses and programme evaluations suggests that teacher leadership rarely improves performance through isolated individual action. Instead, its influence is typically mediated by teacher collaboration, professional learning communities, shared instructional routines, collective efficacy, role clarity and principal support. Teacher leadership is most effective when school leaders protect collaborative time, distribute authority meaningfully, provide middle-leader support, and align teacher-led initiatives with school improvement priorities. However, the evidence also shows that effects on student achievement are conditional, context-sensitive and often delayed. Variations in school readiness, resources, governance, teacher capacity and leadership stability affect whether teacher leadership produces measurable educational gains. The review concludes that teacher leadership should be understood as a performance-oriented, collective and school-embedded practice rather than a symbolic role. Future research should employ validated leadership measures, longitudinal mediation models, multi-informant data and stronger programme evaluations to clarify causal pathways between teacher leadership and educational performance.