Preparation and professional development can help principals be more effective leaders, but little research has examined what specific approaches are most useful. A study of 462 California principals and the teachers and students in their schools shows that high-quality preservice preparation for principals is associated with stronger teacher…

A growing body of research points to the substantial influence of principals on school conditions and students' learning. But how can principals learn to be good leaders? And are there professional learning strategies that make a difference in principal effectiveness? This study, which is part of a larger project synthesizing the research on…