School principals are critical to students' academic achievement, second only to teachers. They are the primary agents of change in their schools, fostering supportive learning environments that enhance student learning and teacher effectiveness. Moreover, they often design and oversee the initiatives and hiring to sustain the positive changes…

Principals are the second-largest school-based contributor to K-12 students' academic progress. However, there is little research evaluating whether efforts to develop principals' skills improve school effectiveness. We conducted randomized controlled trial studies of the impacts of a professional development program called the Executive…

Since 2004, the National Institute for School Leadership (NISL) has offered the Executive Development Program (EDP), a leadership program for sitting school principals that is typically delivered in two-day workshops once per month over 12 months. From its inception through 2018, 15,000 principals across 23 states have participated in the EDP.…