Cross-linguistic influence in simultaneous and early sequential bilingual children: A meta-analysis
Number of pages
SourceJournal of Child Language, (2021)
28 juni 2021
Article / Letter to editor
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SW OZ DCC PL
Journal of Child Language
SubjectCognitive aspects of Multilingualism; Language & Communication; Non-nativeness in Communication; Psycholinguistics
Although cross-linguistic influence at the level of morphosyntax is one of the most intensively studied topics in child bilingualism, the circumstances under which it occurs remain unclear. In this meta-analysis, we measured the effect size of cross-linguistic influence and systematically assessed its predictors in 750 simultaneous and early sequential bilingual children in 17 unique language combinations across 26 experimental studies. We found a significant small to moderate average effect size of cross-linguistic influence, indicating that cross-linguistic influence is part and parcel of bilingual development. Language dominance, operationalized as societal language, was a significant predictor of cross-linguistic influence, whereas surface overlap, language domain and age were not. Perhaps an even more important finding was that definitions and operationalisations of cross-linguistic influence and its predictors varied considerably between studies. This could explain the absence of a comprehensive theory in the field. To solve this issue, we argue for a more uniform method of studying cross-linguistic influence.
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