Intro -- Acknowledgments -- Contents -- Summary -- 1 Introduction -- 2 The Evaluation Framework and Collection of Data -- 3 The Historical Context and Overview of the National Board -- 4 The Assessment Program -- 5 The Psychometric Quality of the Assessments -- 6 Teacher Participation in the Program -- 7 The Impact of Board-Certified Teachers on Student Outcomes -- 8 The Effects of the Certification Process on Practice -- 9 The Impact of Certification on Teachers' Career Paths -- 10 The Effects of Certification on the Education System -- 11 The Cost-Effectiveness of Certification as a Means of Improving Teacher Quality -- 12 Overall Evaluation -- References -- Appendixes -- Appendix A: Reviews of Studies That Provided Evidence for the Evaluation -- Appendix B: Biographical Sketches of Committee Members and Staff.