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KMID : 1036820140190030274
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Communication Sciences & Disorders
2014 Volume.19 No. 3 p.274 ~ p.284
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Predicates in the Vocabulary of Typically Developing Preschoolers
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Oh Jea-Hyuk
Cha Jae-Eun
Yoon Mi-Sun
Kim Jung-Mee
Chang Moon-Soo
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Abstract
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Objectives: The purpose of this study is to evaluate the types and tokens of predicates in the spoken language of Korean preschoolers. Predicates include verbs, adjectives, auxiliary verbs, and auxiliary adjectives.
Methods: 300-400 utterances from 80 two- to five-year-old children, 20 children from each age group, were selected from the Nazarene spoken language corpus. Types and tokens of predicates were measured from a total of 27,485 utterances (65,783 eojeol). Differences in each word class of predicates, based on age groups, were evaluated and then arranged by frequency.
Results: First, the ratio of types and tokens of predicates to total vocabulary was 17.4% and 20.1%, respectively. In predicates, the type-token verb ratio was 73.7%-60.2%, and that of adjectives was 23.4%-25.8%, respectively. Second, there were only significant differences in the types and tokens of predicates between the two-year-old group and the other groups. Third, only a limited number of types of verbs and adjectives were used from high frequencies in the word list.
Conclusion: The ratio of predicates to total vocabulary was similar in each age group. The development of predicates in two- to three-years-old is significant. Preschoolers used several predicates repetitively. These results could be used in the evaluation and intervention of children with language difficulties.
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KEYWORD
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Speech corpus, Predicate, Verb, Adjective, Type-token, Vocabulary
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FullTexts / Linksout information
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Listed journal information
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