Data measuring the performance of educational institutions against established criteria, and against other education providers of the same type. The purpose of league tables, according to the UK government, is to allow parents and carers to make informed choices about the most appropriate schools for their children. The first tables comparing secondary schools' examination results were published in 1992, followed by the publication of tables for post‐compulsory provision in 1993, and subsequently by primary in 1997. There was considerable opposition to their introduction from many stakeholders, who felt that the reputation of institutions might be damaged without good reason, particularly because examination results on their own cannot indicate how much progress has been made by students during their time in the institution. To address this, a measurement of the value added to students' attainment was introduced to the tables in 2003, though the debate over the validity of such published data still continues.