About 26% of students are required to repeat and 14% are estimated to drop out in 7th grade, the highest rates across all levels of compulsory schooling (MEP, 2016). Improving retention in secondary' education is a top priority of the current government, which has designed a flagship initiative Yo Me Apunto (I'm in) to ensure that schools with the highest dropout rates receive additional support (Chapter 4). Among those 15-year-olds who are still in education, PISA 2015 shows that while socio-economically advantaged students tend to perform as well as their peers in many OECD countries, disadvantaged students are behind by the equivalent of around two years of schooling.