with , : w24836
School systems regularly use student assessments for accountability purposes. But, as highlighted by our conceptual model, different configurations of assessment usage generate performance-conducive incentives of different strengths for different stakeholders in different school environments. We build a dataset of over 2 million students in 59 countries observed over 6 waves in the international PISA student achievement test 2000-2015. Our empirical model exploits the country panel dimension to investigate reforms in assessment systems over time, where identification comes from taking out country and year fixed effects along with a rich set of student, school, and country measures. We find that the expansion of standardized external comparisons, both school-based and student-based, is asso...