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Productive Vocabulary among Three Groups of Bilingual American Children: Comparison and Prediction
Linda R Cote1, Marc H Bornstein2
1Department of Psychology, Marymount University and Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Public Health Service.
Abstract:
The importance of input factors for bilingual children's vocabulary development was investigated. Forty-seven Argentine, 42 South Korean, 51 European American, 29 Latino immigrant, 26 Japanese immigrant, and 35 Korean immigrant mothers completed checklists of their 20-month-old children's productive vocabularies. Bilingual children's vocabulary sizes in each language separately were consistently smaller than their monolingual peers but only Latino bilingual children had smaller total vocabularies than monolingual children. Bilingual children's vocabulary sizes were similar to each other. Maternal acculturation predicted the amount of input in each language, which then predicted children's vocabulary size in each language. Maternal acculturation also predicted children's English-language vocabulary size directly.
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