Research Interests
Language assessment, Cross-linguistic and cross-cultural learning and teaching, Second language acquisition among young learners, Bilingualism and biliteracy
Professor in Educational Linguistics DivisionDirector of TESOL
ybutler@upenn.edu(215) 898-5937
WebsiteLanguage assessment, Cross-linguistic and cross-cultural learning and teaching, Second language acquisition among young learners, Bilingualism and biliteracy