He also served as the Chair of the WATESOL NNEST Caucus. His research interests include the sociolinguistics of English language teaching with special emphasis on the global spread of English as an international language and its implications for language learning, teaching, teacher education, and policy/planning; issues related to non-native English-speaking professionals in TESOL; and second-language teacher education (particularly teacher cognition, the notion of praxis, and the interplay between second language acquisition and second language pedagogy). He is the co-author of Teaching English as an International Language (2013) published by TESOL Press.