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ISSN : 1229-0718
본 연구는 영아초기 어휘 발달의 안정성과 표현어휘와 이해어휘 간의 관계를 알아보는 것을 목적으로, 393쌍의 어머니와 영아들을 대상으로 하였다. 8, 12, 15, 18개월에 영아의 가정을 방문하여 어휘체크리스트를 실시하였다. 그 결과, 첫째, 영아초기 어휘발달은 시간적으로 안정적이었다. 특히 이해어휘는 이해어휘와, 표현어휘는 표현어휘와 상관이 높고, 연령이 높아질수록 어휘들 간 상관이 높아지는 특징을 보였다. 둘째, 영아가 습득한 12개월 어휘 수는 18개월 어휘수를 예측할 수 있었다. 셋째, 이해어휘는 표현어휘의 발달을 예측할 수 있었다. 또한 월령별로 습득한 어휘 내용을 통해, 영아초기 어휘는 의사소통적 기능을 하고 있음을 확인하였다. 본 연구의 결과는 영아초기 어휘발달은 안정적이며, 따라서 초기(12개월)에 습득한 어휘 수에 근거하여 이후 영아의 어휘발달을 예측할 수 있음을 시사하고 있다.
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.
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