Evaluating Value-added Models for Teacher Accountability

Download or read book Evaluating Value-added Models for Teacher Accountability written by Daniel F. McCaffrey and published by Rand Corporation. This book was released on 2003 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Does value-added modeling (VAM) demonstrate the importance of teachers to student outcomes? The authors clarify the primary questions raised by VAM for measuring teacher effects, review the most important recent applications of VAM, and discuss a variety of statistical and measurement issues that might affect the validity of VAM inferences. The authors identify numerous possible sources of error and bias in teacher effects and recommend a number of steps for future research into these potential errors.