Show simple item record Forrest, Karen en Weismer, Gary en Hodge, Megan en Elbert, Mary en Dinnsen, Daniel A. en 2015-06-23T19:36:31Z en 2015-06-23T19:36:31Z en 1990 en
dc.identifier.citation Forrest, K., Weismer, G., Hodge, M., Dinnsen, D. A. & Elbert, M. (1990). Statistical analysis of word-initial /k/ and /t/ produced by normal and phonologically disordered children. Clinical Linguistics & Phonetics, 4(4), 327-340. en
dc.description.abstract The acoustic characteristics of voiceless velar and alveolar stop consonants were investigated for normally articulating and phonologically disordered children using spectral moments. All the disordered children were perceived to produce It/ for /k/, with /k/ being absent from their phonetic inventories. Approximately 82% of the normally articulating children's consonants were classified correctly by discriminant function analysis, on the basis of the mean (first moment), skewness (third moment) and kurtosis (fourth moment) derived from the first 40 ms of the VOT interval. When the discriminant function developed for the normally articulating children was applied to the speech of the phonologically disordered group of children, no distinction was made between the velar and alveolar stops. Application of the model to the speech of individual children in the disordered group revealed that one child produced distinct markings to the velar-alveolar contrast. Variability measures of target /t/ and /k/ utterances indicated greater variability in this disordered child's productions compared with the normally articulating children. Phonological analysis of this child's speech after treatment, in which the velar-alveolar contrast was not treated, revealed target appropriate productions of both It/ and /k/. By contrast, the other three phonologically disordered children, for whom no acoustic distinction was found between target It/ and target /k/, did not evidence any knowledge of the contrast after treatment with other target phonemes. en
dc.description.sponsorship National Institutes of Health DC00433, RR7031K, DC00076, DC001694 (PI: Gierut) en
dc.language.iso en_US en
dc.publisher Taylor & Francis Health Sciences en
dc.relation.isversionof en
dc.rights © 1990 Taylor & Francis Ltd. en
dc.subject phonology en
dc.subject child phonology en
dc.subject clinical phonology en
dc.subject phonological disorders in children en
dc.subject phonological treatment en
dc.subject Learnability Project en
dc.subject language acquisition en
dc.title Statistical analysis of word-initial /k/ and /t/ produced by normal and phonologically disordered children en
dc.type Article en
dc.description.version This is an Accepted Manuscript of an article published by Taylor & Francis in Clinical Linguistics & Phonetics on January 1990, available online: en

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