Prof. Chang teaches courses related to language acquisition and linguistic theory and directs the Phonetics, Acquisition & Multilingualism Lab (PAMLab). His research addresses topics in phonetics, phonology, psycholinguistics, and language development. Specific interests include the early stages of second language (L2) and third language (L3) phonological acquisition, the structure of phonetic and phonological representations, linguistic plasticity, cross-linguistic interactions within the bilingual/multilingual mind, bases of perceived cross-linguistic similarity, second language speech processing, heritage language phonology, and contact-induced sound change.

Prof. Chang is an Associate Editor of the journal Second Language Research and also sits on the Editorial Board of the Korean Journal of Linguistics. His work has appeared in journals such as Bilingualism: Language and Cognition, Journal of PhoneticsLanguage, and Language Learning. Links to publications can be found on the PAMLab website: