Skip to main content


Welcome, the Hub connects all projects

Library


Exogenous Variables and Value-Added Assessments: A Fatal Flaw

Abstract

"There has been rapid growth in value-added assessment of teachers to meet the widely supported policy goal of identifying the most effective and the most ineffective teachers in a school system. The former group is to be rewarded while the latter group is to be helped or fired for their poor performance. But, value-added approaches to teacher evaluation have many problems. Chief among them is the commonly found class-to-class and year-to-year unreliability in the scores obtained. Teacher value-added scores appear to be highly unstable across two classes of the same subject that they teach in the same semester, or from class to class across two adjacent years."

Comments

Comments are visible to site members only.

Current members may log-in to participate in the comments; others must apply to join.