Leaving school early has a major impact on young people’s life chances, as well as generating large negative external effects for society and lowering economic productivity. However, over the last 15 years a remarkable effort has been made to bring their number down to 19% in 2013 (European Commission). Among other measures, evaluation reports have highlighted the key role that the increase of Vocational Education and Training (VET) provision in Portugal has played in improving students’ performance and reducing dropout rates (QREN, 2009, QREN, 2010).