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KMID : 1036820160210010047
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Communication Sciences & Disorders
2016 Volume.21 No. 1 p.47 ~ p.59
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Speech and Language Development Patterns of Korean Two-Year-Old Children from Analysis of Spontaneous Utterances
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Ha Seung-Hee
Seol Ah-Young
So Jung-Min
Pae So-Young
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Abstract
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Objectives: This study obtained quantitative measures reflecting phonological, semantic, syntactic, and morphological aspects of language in Korean two-year-old children from analysis of spontaneous utterances. The study investigated whether there were differences of speech-language development patterns between children age 24-30 months and 31-36 months and between boys and girls based on the aforementioned measures.
Methods: Twenty-one typically developing children age 24-30 months and 23 typically developing children age 31-36 months participated in the study. Fifty utterances were collected from the children’s interaction with their mothers and analyzed. Consonant inventory, syllable structure, phonological mean length of utterance (PMLU), phonological word proximity (PWP), phonological word correction (PWC), and percentage correct consonants (PCC) were obtained as speech measures. The number of different words (NDW), number of total words (NTW), mean length of utterances in morphemes (MLUm), and mean length of utterances in words (MLUw) were analyzed as language measures using the Korean Language Analysis program.
Results: All the speech measures except for PMLU showed significant differences between the children age 24-30 months and 31-36 months. NDW, NTW, and MLUw exhibited significant differences between the two age groups, but MLUm did not show a significant difference. There were no significant differences among any of the speech and language measures between boys and girls.
Conclusion: These speech and language measures from analysis of spontaneous utterances can be used as references in identifying speech-language development delay and communication disorders in two-year-old children.
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KEYWORD
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Two-year-old, Speech-language development, Milestone, Spontaneous language sample
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