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KMID : 1036820150200040490
Communication Sciences & Disorders
2015 Volume.20 No. 4 p.490 ~ p.499
Words in Storybooks as Children¡¯s Language Input Environment: Substantives
Han Min-Kyung

Choi Sou-Jin
Abstract
Objectives: The purpose of this study was to explore the characteristics of the types and token of substantives in storybooks and to provide suggestions on the use of wordlists based on storybooks.

Methods: Twenty-six books in each of three age groups (0-2, 3-4, and 5-7) were selected out of a total of 78 storybooks. Among 14,728 utterances in the selected storybooks, morphological analysis was conducted on 7,184 of the utterances to calculate the types and tokens of substantives including word classes such as common nouns (Common), proper nouns (Proper), dependent nouns (Dependent), pronouns (Pro), and numeral nouns (Numeral). An ANOVA was used to determine the differences in the types and tokens of each word class across age groups.

Results: Substantives represented 38.2% and 26.8% of the types and tokens, respectively, with the storybooks for 3- to 4-year olds showing the highest the ratios of types and tokens. From greatest to smallest the order of types was Common>Proper>Dependent>Pro>Numeral and the frequency of tokens was Common>Pro>Dependent=Proper>Numeral. The types and tokens of all substantive word classes except for Numeral increased significantly with age.

Conclusion: Storybooks, one of children¡¯s language input environments, provide a variety of and repeated exposure to substantives, increasing as the age of the storybooks increases, which may influence word acquisition and development in children.
KEYWORD
Substantives, Storybooks, Morphological analysis, Type, Token
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