Aims
It was asked whether a cut‐off exists in the proportion of exposure to English at which one should expect a bilingual toddler to perform as well as a monolingual on a test standardized for monolingual English‐speaking children.
Methods & Procedures
Thirty‐five bilingual 2;6‐year‐olds exposed to British English plus an additional language and 36 British monolingual toddlers were assessed on the auditory component of the Preschool Language Scale, British Picture Vocabulary Scale and an object‐naming measure. All parents completed the Oxford Communicative Development Inventory (Oxford CDI) and an exposure questionnaire that assessed the proportion of English in the language input. Where the CDI existed in the bilingual's additional language, these data were also collected.
Outcomes & Results
Hierarchical regression analyses found the proportion of exposure to English to be the main predictor of the performance of bilingual toddlers. Bilingual toddlers who received 60% exposure to English or more performed like their monolingual peers on all measures. K‐means cluster analyses and Levene variance tests confirmed the estimated English exposure cut‐off at 60% for all language measures. Finally, for one additional language for which we had multiple participants, additional language CDI production scores were significantly inversely related to the amount of exposure to English.
Conclusions & Implications
Typically developing 2;6‐year‐olds who are bilingual in English and an additional language and who hear English 60% of the time or more, perform equivalently to their typically developing monolingual peers.
تاريخ النشر
01/12/2014
الناشر
Inernational Journal of Language& communication disorders
راف الله بوشعراية الدرسي | Rafalla Boshariy Farag | 4251