The levels and growth achievement functions make extreme and diametrically opposed assumptions about the rate at which teacher inputs persist. I first show that if these assumptions are incorrect, teacher value-added estimates can be significantly biased. I then develop a tractable, cumulative model of student achievement that allows for the joint…

During the late 1990s and 2000s, the State of Florida enacted a set of education reforms spearheaded by Governor Jeb Bush. These policies, which emphasize test-based accountability, competition, and choice, have since become known as the "Florida Formula for education success," or, simply, the "Florida Formula." In recent…

This report evaluated a teacher education program designed to improve the quality of instruction for low income students in New York City. A major goal of the program was to increase student reading and English fluency skills. Teachers for the program were trained on college campuses. Each participating school designed its training program to suit…