This article describes the conceptual framework of and purposes for two organizations: The Consortium for the Improvement of Teacher Evaluation; and The Research and Development Center for Teacher Evaluation. These organizations focus on improving the quality and quantity of research conducted on assessing teacher behaviors that affect student…

Studies of the validity of principals' ratings of teachers show there is little correlation with student achievement. Reviews of research show considerable weakness in the research designs of these studies. Outlines results from a new study with no weaknesses in design. (MD)