Abstract
Abstract Code-switching, the alternation between two languages in an interaction, is a salient characteristic of bilingual speech, but there is substantial variability in code-switching patterns among bilinguals. Language dominance, the relative strength of a bilingual’s languages, has been suggested as a key factor that impacts both the frequency with which a bilingual engages in code-switching and the directionality of code-switching. This study examines the relationship between language dominance and code-switching engagement and directionality. A total of 454 Spanish–English bilinguals completed questionnaires regarding language dominance, code-switching engagement, and code-switching directionality. Results demonstrated an impact of language dominance on code-switching engagement, with more balanced bilinguals reporting greater code-switching, although significant individual variation remained. A weak link between language dominance and directionality was also found. These findings suggest that while language dominance may serve to constrain a bilingual’s range of possible engagement with code-switching, it represents a distinct characteristic of a bilingual’s language profile.
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