School Principals and School Performance
This paper uses data from New York City to estimate how the characteristics of school principals relate to school performance, as measured by students' standardized exam scores and other outcomes. There is little evidence of any relationship between school performance and principal education and pre-principal work experience, but some evidence that experience as an assistant principal at the principal's current school is associated with higher performance among inexperienced principals.
Clark, D., Martorell, P., & Rockoff, J. (2009). School Principals and School Performance. Working Paper 38. National Center for Analysis of longitudinal data in Education research.
The Making of the Principal-Five Lessons in Leadership Training
This Wallace Perspective plumbs foundation research and work in school leadership to identify five lessons for better training, including: more selective admission to training programs, a focus on instructional leadership and mentoring for new principals.
Mitgang, L. (2012). The Making of the Principal: Five Lessons in Leadership Training. Perspective. Wallace Foundation.