Professor Barry O’Sullivan is the Head of Assessment Research & Development at the British Council where he was responsible for the design and development of the Aptis test service. He has undertaken research across many areas on language testing and assessment and its history and has worked on the development and refinement of the socio-cognitive model of test development and validation since 2000. He is particularly interested in the communication of test validation and in test localisation. He has presented his work at many conferences around the world, while almost 100 of his publications have appeared in a range of international journals, books and technical reports. He has worked on many test development and validation projects over the past 25 years and advises ministries and institutions on assessment policy and practice.
He is the founding president of the UK Association of Language Testing and Assessment (UKALTA) and holds honorary and visiting chairs at a number of universities globally. In 2016 he was awarded fellowship of the Academy of Social Science in the UK, and was elected to Fellowship of the Asian Association for Language Assessment in 2017.