Aspectual and mood morphology are vulnerable domains in adult heritage speakers. This paper investigates the root of such vulnerability within the domain of Turkish evidentiality system by comparing 20 second-generation adult and 20 school-age child Turkish heritage speakers to 20 first-generation immigrants (main input providers for child…

Irish is a rapidly changing minority language spoken as the main community language in some areas of the officially Irish-speaking "Gaeltacht" regions in Ireland. We analyse narratives from 17 parent-child dyads, living in one such area. All children, aged 3-6;4, had high exposure to the local variety of Irish. The input quality was…

We compare the predictions of two different accounts of first language acquisition by investigating the relative contributions of abstract syntax and input frequency to the elicited production of main and embedded questions by 36 monolingual English-speaking toddlers aged 3;00 to 5;11. In particular, we investigate whether children's accuracy…