Influences of language input and production on the language skills of Persian-English bilingual immersion preschool children

The purpose of this study was to better understand bilingualism in Persian-English preschool-aged children, and how their language performance across two domains of language related to their language production and parental language input. Participants were 15, 2-through 5-year old Persian-English bilingual children attending a Persian immersion preschool in the U.S. The participants completed a battery of language tasks in English and Persian and participants' parents provided language input and production information. Data indicate that greater input in the heritage language outside school, Persian, will likely lead to better Persian skills, while greater English input may negatively affect the children's Persian skills. Participants received consistent native-level Persian input in school, yet the results suggest that Persian as a heritage language in the U.S. may be susceptible to the same vulnerability that affects other non-mainstream languages.