ORIGINAL ARTICLE Commun Sci Disord. 2004;9(2): 102-115.
 Disfluency Characteristics and Speech Rate of Stuttering and Nonstuttering Hee Cheong Chon , Do Heung Ko , and Moon Ja Shin` Copyright ©2004 The Korean Academy of Speech-Language Pathology and Audiology 전희정(Hee Cheong Chon)| 고도흥(Do Heung Ko)| 신문자(Moon Ja Shin) Share : ABSTRACT The purposes of this study were to compare stuttering children with nonstuttering children in terms of (a) the domain of typical disfluency, (b) the domain of atypical disfluency, (c) the overall speech rate, (d) the articulation rate, and (e) the relation of the overall speech rate and the articulation rate. The results are summarized as follows. First, the most frequent disfluency type of stuttering children was ‘syllable repetition’ and that of nonstuttering children was ‘interjection’. Second, in the domain of typical disfluency, statistically significant differences between the free interaction context and the story telling context were observed in both group. In the domain of atypical disfluency, statistically significant differences between the two groups were observed in each context. Third, the mean overall speech rate was 4.84SPS(Syllables Per Second) and 4.94 SPS in the free interaction context and 3.36SPS and 3.66 SPS in the story telling context, for the stuttering and nonstuttering children, respectively. In both child groups, there were statistically significant differences between the free interaction and story telling contexts in the overall speech rate. Fourth, the mean articulation rate was 5.26SPS and 5.07 SPS in the free interaction context and 4.32SPS and 3.99 SPS in the story telling context, for the stuttering and nonstuttering children, respectively. In both child groups, there were statistically significant differences between the free interaction and story telling contexts in the articulation rate. Fifth, the stuttering children had a significantly different speech rate between the overall speech rate and the articulation rate in both contexts. However, the nonstuttering children did not have a significantly different speech rate in the free interaction context. Keywords: 말더듬 | 전형적 비유창성 | 비전형적 비유창성 | 전체말속도 | 조음속도 | stuttering | typical disfluency
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