Caregiver talk to young Spanish-English bilinguals: comparing direct observation and parent-report measures of dual-language exposure.

Caregiver talk to young Spanish-English bilinguals: comparing direct observation and parent-report measures of dual-language exposure.

Dev Sci. 2016 May 19;

Authors: Marchman VA, Martínez LZ, Hurtado N, Grüter T, Fernald A

Abstract
In research on language development by bilingual children, the early language environment is commonly characterized in terms of the relative amount of exposure a child gets to each language based on parent report. Little is known about how absolute measures of child-directed speech in two languages relate to language growth. In this study of 3-year-old Spanish-English bilinguals (n = 18), traditional parent-report estimates of exposure were compared to measures of the number of Spanish and English words children heard during naturalistic audio recordings. While the two estimates were moderately correlated, observed numbers of child-directed words were more consistently predictive of children's processing speed and standardized test performance, even when controlling for reported proportion of exposure. These findings highlight the importance of caregiver engagement in bilingual children's language outcomes in both of the languages they are learning.

PMID: 27197746 [PubMed - as supplied by publisher]

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