Background/Context: School principals have long played a central role in managing building operations and supervising school employees. Over the past two decades, however, policy developments--including site-based management, external accountability measures, and teacher evaluation systems--have increased expectations that principals also improve…

This report summarizes research findings and implementation practices for teacher and principal value-added models (VAMs), as a first step in the Team Pennsylvania Foundation's (Team PA) pilot project to inform the development of a full, statewide model evaluation system. We have selected 21 studies that represent key issues and findings in the…

Extensive education research on the contribution of teachers to student achievement produces two generally accepted results. First, teacher quality varies substantially as measured by the value added to student achievement or future academic attainment or earnings. Second, variables often used to determine entry into the profession and…