Document Type


Date of Degree Completion

Summer 1993

Degree Name

Master of Arts (MA)

Committee Chair

Dale Earl Otto

Second Committee Member

Linda Marie Klug

Third Committee Member

Elbert E. Bilyeu


This research was conducted to identify the most important English speech sounds which determine non-native English speakers' intelligibility to native speakers of English. The researcher focused on variation of pronunciation by Japanese English speakers of differing levels of proficiency and examined the correlation between their pronunciation and intelligibility to native speakers. The results provided some keys to intelligible English speech and some implications for developing comprehensible speech in teaching English as a second language or English as a foreign language.