This paper examines several aspects of the “Short Front Vowel Shift” (SFVS) in Canadian English, known in most previous research as the “Canadian Vowel Shift.” It is based on acoustic analysis of a list of one hundred words produced by sixty-one Canadian and thirty-one American university students. The analysis focuses on three questions: (1) the relations among the vowels involved in the shift, including relations with vowels not traditionally considered part of the shift; (2) the behavior of individual words in each vowel category, which displays allophonic variation; and (3) the role of regional and national identity (western versus eastern Canadian, and Canadian versus American) and speaker sex in predicting the degree of participation in the shift, which is measured with a unitary quantitative index of the shift that is proposed here for the first time. The analysis finds that the short front vowels (kit, dress, and trap) lower and retract as a set, but that shifts of several back vowels (particularly foot, goat, and strut) are also correlated but not necessarily structurally connected with these; that following voiceless fricatives favor the SFVS while preceding velars disfavor it; that women are more advanced in the shift than men; that there is no regional difference within Canada in the progress of the shift; and, most surprisingly, that, once the American comparison group is restricted to those with a low-back merger, Americans are more shifted than their Canadian peers, calling into question the association of the shift with Canada in most previous research on Canadian English.
