ation framework questions, sought out additional data and analyses, and used this body of information to evaluate the NBPTS.
This report describes the committee’s evaluation framework and presents our evaluation of the national board’s program. Chapter 2 describes both the evaluation framework and its rationale and the kinds of published research, other data, and other sources of information we examined. An overview of the context in which the national board was developed and the program’s history is presented in Chapter 3, and Chapter 4 describes the board, its operations, and the structure and content of the current certification process.
The committee’s evaluation of the NBPTS is presented in Chapters 5 through 11. In Chapter 5 the psychometric characteristics of the assessment and the available evidence of its psychometric quality are described. Chapter 6 discusses the available data regarding participation in the national board certification process across the states and some of the factors that may influence participation. Evidence regarding outcomes for students taught by national board–certified teachers is discussed in Chapter 7, together with the committee’s thinking about the issues surrounding this line of research. The question of the impact that national board certification has on teachers is addressed in Chapter 8, in which we consider the extent to which participation in the assessment changes teachers’ practices and has an impact on their effectiveness. Chapter 9 deals with research regarding the career paths of board-certified teachers. Chapter 10 discusses evidence of possible spillover effects the board certification program may have, such as indirect effects on teacher preparation, professional development, and the status of the teaching profession. Chapter 11 addresses the cost-effectiveness of the national board program as a means of improving teacher quality. Our recommendations are included in these chapters and also summarized in Chapter 12, together with the committee’s overall conclusions about the national board program and its impacts.