Duolingo, Global. Antony Kunnan joins Duolingo as Staff Assessment Scientist. He is one of the world’s leading experts on language assessment. Antony has held professorships at universities in California, Hong Kong, Singapore, and Macau, and is the author and editor of numerous books and book chapters and has written journal articles on various topics such as test validation, test fairness, testing policy, and applied statistics. He has given lectures on these topics in more than 35 countries and he is also past president of the International Language Testing Association. Antony is also an expert member of the Association of Language Testers of Europe and  founding president of the Asian Association for Language Assessment.