Published online by Cambridge University Press: 13 June 2018
In the present study, we examined the effect of speaker certainty on word-learning performance in English-speaking monolingual (MAge = 6.40) and Spanish–English bilingual (MAge = 6.58) children. No group differences were observed when children learned novel words from a certain speaker. However, bilingual children were more willing to learn novel words from an uncertain speaker than their monolingual peers. These findings indicate that language experience influences how children weigh cues to speaker credibility during learning and suggest that children with more diverse linguistic backgrounds (i.e., bilinguals) are less prone to prioritizing information based on speaker certainty.
*The present project was supported by NIDCD Grants R03 DC010465 and R01 DC011750, and Training Grant T32 DC005359-10. The authors wish to express gratitude to all of the families who participated in the present study, the numerous schools in the Madison Metropolitan school district who generously aided in participant recruitment, and the members of the Language Acquisition and Bilingualism Lab for their invaluable assistance with data collection.