Mexico's Carrera Magisterial was instituted in 1992 and designed jointly by the federal education authorities, state authorities, and the teachers' union as a horizontal promotion system that rewards teachers with salary bonuses on the basis of their performance. Teacher performance is evaluated through a series of assessments, including teacher and student tests. The Mexican Ministry of Education (Secretaria de Educacion Public) posed the question: How can Carrera Magisterial be reformed to help it increase educational quality in Mexico? This document summarizes the technical report that presents the results from the work addressing this question. Although concerned specifically with evaluating Carrera Magisterial's system of teacher evaluation, the report (ED496982) also offers general insights regarding teacher incentives and assessments that may serve to inform a varied audience of policymakers, educators, and the general public interested in the field of teacher reform. Reported findings are consistent with the literature on teacher incentives, which offers mixed evidence on the effects of salary incentives offered to teachers to improve student achievement. Primary recommendations of the study target the shortcomings observed in the teacher and students tests used to measure teacher performance. (Contains 3 footnotes.) [For the full report, see ED496982.]