Jan de Jong

John H.A.L. de Jong is Professor Emeritus of Language Testing at VU University Amsterdam and has run a consultancy business, Language Testing Services, since 2000. He taught French for seven years before starting his career in language teting in 1977 at CITO. With Language Testing Services, he has provided consultancy in language testing to national ministries of education, the World Bank, the OECD, the Council of Europe and the European Union. During his years at Pearson (2006–2016) he developed the Pearson Test of English Academic and the Global Scale of English and led Frameworks development for PISA 2015, 2018 and PISA for Development.