There is substantial evidence that children's apparent omission of grammatical morphemes in utterances such as "She play tennis" and "Mummy eating" is in fact errors of commission in which contextually licensed unmarked forms encountered in the input are reproduced in a context-blind fashion. So how do children stop making such…

Research on "parentese," the acoustically exaggerated, slower, and higher-pitched speech directed toward infants, has mostly focused on maternal contributions, although it has long been known that fathers also produce parentese. Given recent societal changes in family dynamics, it is necessary to revise these mother-centered models of…

High-quality early childhood education is key for children's positive and long-term outcomes. Countries differ on how they quality assure provision. In England, Ofsted is the independent inspection body, often the source of controversy for lack of transparency in ratings. However, there is a dearth of evidence on how inspectors' judgements are…