02408cam a2200241 a 4500008004100000020001500041020001800056040000800074050002200082245038700104260005100491300001000542505001700552520130700569650003901876650004301915650004001958700002201998700002202020700002802042710006102070710003502131100518s2010    dcu      b    000 0 eng d  a0309148138  a9780309148139  aSDU00aLB2838bG394 201000aGetting value out of value-added :breport of a workshop /cCommittee on Value-Added Methodology for Instructional Improvement, Program Evaluation, and Educational Accountability ; Henry Braun, Naomi Chudowsky, and Judith Koenig, editors ; Center for Education ; Division of Behavioral and Social Sciences and Education ; National Research Council and National Academy of Education.  aWashington :bNational Academies Press,c2010.  a82 p.  aHKBU Library  a"Value-added methods refer to efforts to estimate the relative contributions of specific teachers, schools, or programs to student test performance. In recent years, these methods have attracted considerable attention because of their potential applicability for educational accountability, teacher pay-for-performance systems, school and teacher improvement, program evaluation, and research. Value-added methods involve complex statistical models applied to test data of varying quality. Accordingly, there are many technical challenges to ascertaining the degree to which the output of these models provides the desired estimates. Despite a substantial amount of research over the last decade and a half, overcoming these challenges has proven to be very difficult, and many questions remain unanswered--at a time when there is strong interest in implementing value-added models in a variety of settings. The National Research Council and the National Academy of Education held a workshop, summarized in this volume, to help identify areas of emerging consensus and areas of disagreement regarding appropriate uses of value-added methods, in an effort to provide research-based guidance to policy makers who are facing decisions about whether to proceed in this direction."--Publisher's description. 0aTeacher effectivenessxEvaluation. 0aEducational indicatorszUnited States. 0aTeachersxRating ofzUnited States.1 aChudowsky, Naomi.1 aKoenig, Judith A.1 aBraun, Henry I.,d1949-2 aNational Research Council (U.S.).bCenter for Education.2 aNational Academy of Education.