The Promise and Peril of Using Value-Added Modeling to Measure Teacher Effectiveness
This research brief describes work documented in Evaluating Value-Added Models for Teacher Accountability (MG-158-EDU).
Student performance reflects many factors beyond their teacher's effectiveness, yet teacher evaluations often reflect how well their students do on standardized tests. RAND researchers are nationally recognized for their work using value-added modeling to distinguish a teacher's impact from factors such as individual ability, family environment, past schooling, and peer influence.