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KMID : 0917520010080010135
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Journal of Speech Sciences
2001 Volume.8 No. 1 p.135 ~ p.142
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The Comparisons of GRBAS Perceptual Judgements according to Levels of Utterances
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Pyo Hwa-Young
Sim Hyun-Sub
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Abstract
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The present study was performed to investigate adequate levels of utterances which can give essential as well as useful information about the patients´ voice, by examining the degrees of correlation between the levels of utterances (vowels, words, and phrase paragraph reading) and the entire utterance including all of the levels.
For this purpose, a total of 10 individual utterance samples (5 vowels, 3 words, 1 phrase, 1 paragraph reading) were collected from each of the 30 subjects with voice disorder patients, and four experienced voice therapists evaluated them using RBA . The results showed that four therapists highly agreed upon on ´G´ parameter. The coefficient of the correlation between each level of utterance and entire utterance tended to be above 0.70. Judgements of the vowel /??/ as well as /o/ highly correlated with the judgement of the entire utterance, Regardless of severity, the judgement of the entire utterance highly correlated with the judgements of the vowel /ul and the paragraph reading. These results suggest that experienced . voice therapists can precisely evaluate patients´ voice quality with only one sustained vowel in the clinic field, as is done with the entire utterance evaluation.
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