ISSN : 1229-0718
The purpose of this study was two characteristics of early vocabulary development: the stability between 8 and 18 months of age, and the relationship between receptive and expressive vocabulary. The total of 393 mothers and their infants participated in this study. We visited the infants' home at 8, 12, 15, and 18 months in age. And the ability of infants' language was measured by the vocabulary checklist. Results are as follows: First, infant's vocabulary development showed stability of individual variation across ages. Especially, the correlation of same kind of vocabulary was higher than ones of different kind of vocabulary, and the stability was stronger, as age increased. Second, the number of vocabulary at 12 months could predict the language ability at 18 months. Finally, the receptive vocabulary could predict later the expressive vocabulary. The results implied that based on the number of vocabulary acquired in early infancy, we can expect and explain later language development.
(2002) MCDI-K 영유아용, 한국영아발달연구센터
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(2004a) 한국영아의 초기 어휘발달8개월~17개월 ,
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(1982) 한국 아동의 언어획득 연구, 서울대학교 출판부
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