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. 2019 Jun 10;145(6):3382–3398. doi: 10.1121/1.5110302

TABLE IV.

Confusion matrix of vowel percent responses based on word transcription performance. Note: Cells represent percent responses to target.

Spanish Accented Test
No Accented Training Same/Spanish Accented Training
Listeners' Responses Listeners' Responses
Intended Targets /i/ /ɪ/ /e/ /æ/ /ʌ/ /a/ Other Intended Targets /i/ /ɪ/ /e/ /æ/ /ʌ/ /a/ Other
/i/ 43.3 44.2 5.8 0.8 5.8 /i/ 41.7 46.7 6.7 5.0
/ɪ/ 27.5 59.2 8.3 0.8 4.2 /ɪ/ 20.8 70.8 8.3
/e/ 95.8 0.8 3.3 /e/ 0.8 0.8 95.8 2.5
/æ/ 1.7 73.3 18.3 5.0 1.7 /æ/ 1.7 85.0 10.0 1.7 1.7
/ʌ/ 1.4 0.7 7.1 38.6 24.3 27.9 /ʌ/ 6.4 44.3 22.9 26.4
/a/ 11.7 1.7 13.3 63.3 10.0 /a/ 3.3 11.7 80.0 5.0
Different/Korean Accented Training Mixed Accented Training
Listeners' Responses Listeners' Responses
Intended Targets /i/ /ɪ/ /e/ /æ/ /ʌ/ /a/ Other Intended Targets /i/ /ɪ/ /e/ /æ/ /ʌ/ /a/ Other
/i/ 45.8 40.0 5.8 0.8 7.5 /i/ 47.5 39.2 4.2 9.2
/ɪ/ 24.2 65.0 9.2 1.7 /ɪ/ 25.8 63.3 6.7 0.8 3.3
/e/ 0.8 97.5 0.8 0.8 /e/ 1.7 95.8 0.8 1.7
/æ/ 80.0 15.0 1.7 3.3 /æ/ 1.7 78.3 15.0 1.7 3.3
/ʌ/ 7.1 37.9 21.4 33.6 /ʌ/ 7.1 40.7 20.0 32.1
/a/ 8.3 11.7 76.7 3.3 /a/ 3.3 18.3 76.7 1.7
Korean Accented Test
No Accented Training Same/Korean Accented Training
Listeners' Responses Listeners' Responses
Intended Targets /i/ /ɪ/ /e/ /æ/ /ʌ/ /a/ Other Intended Targets /i/ /ɪ/ /e/ /æ/ /ʌ/ /a/ Other
/i/ 92.5 6.7 0.8 /i/ 92.5 4.2 0.8 2.5
/ɪ/ 35.8 50.0 2.5 0.8 10.8 /ɪ/ 28.3 58.3 1.7 1.7 10.0
/e/ 95.0 0.8 4.2 /e/ 99.2 0.8
/æ/ 3.3 68.3 5.0 23.3 /æ/ 80.0 8.3 11.7
/ʌ/ 1.4 66.4 27.1 5.0 /ʌ/ 72.9 20.0 7.1
/a/ 1.7 13.3 85.0 /a/ 8.3 91.7
Different/Spanish Accented Training Mixed Accented Training
Listeners' Responses Listeners' Responses
Intended Targets /i/ /ɪ/ /e/ /æ/ /ʌ/ /a/ Other Intended Targets /i/ /ɪ/ /e/ /æ/ /ʌ/ /a/ Other
/i/ 43.3 44.2 5.8 0.8 5.8 /i/ 89.2 10.8
/ɪ/ 27.5 59.2 8.3 0.8 4.2 /ɪ/ 18.3 66.7 3.3 0.8 10.8
/e/ 95.8 0.8 3.3 /e/ 0.8 96.7 2.5
/æ/ 1.7 73.3 18.3 5.0 1.7 /æ/ 6.7 73.3 10.0 10.0
/ʌ/ 1.4 0.7 7.1 38.6 24.3 27.9 /ʌ/ 2.9 67.9 22.9 6.4
/a/ 11.7 1.7 13.3 63.3 10.0 /a/ 3.3 11.7 83.3 1.7