This article examines school-level responses to subgroup accountability pressure through an ethnographic case study of a school cited for failing to make adequate yearly progress for student subgroups. Concerns about the calculations and measures used to derive the citation and reservations about acting on accountability data delegitimized the…

School accountability and student assessment are closely associated in educational jurisdictions' attempts to monitor student achievement, focus instruction, and improve subsequent student and school performance. The research reported in this article examines the School Effectiveness Framework in Ontario, Canada, exploring the foundations upon…