Training school leaders in the key areas of policy and state laws, basic statistical literacy, assessment types and purposes, and value-added models is particularly important because ideas shaping teacher performance evaluation are being considered at the national, state, and local levels. The authors argue that providing school leaders with this background is "necessary" in order to conduct ethical and effective performance evaluations. This article presents several key areas for professional development aimed at providing educational leaders with this background. These key areas provide a framework (i.e., called Ethical and Effective Performance Evaluations or E[superscript 2] PE) for designing workshops for educational leaders as they refine practices in conducting ethical and effective performance evaluations of both principals and teachers. Specifically, this article could be helpful to university personnel as they consider how to assist local school districts in implementing effective and ethical performance evaluations of principals and teachers.