Evidence is presented from an experimental study with 21 children ages 4 to 5 years suggesting the coincident emergence of certain Determiner Phrases (DPs) as barriers to wh-movement and as separate binding domains. It is argued that the default assumption for children's grammar may be to assume NP is the maximal projection for a structure until a…

Addresses phenomena exhibited by young children such as suffixed and free articles, double definiteness, genitives, pronouns, and "nominal style." Shows that analysis of these early data must invoke at least one functional projection above the noun phrase. Findings argue against any claim about the universal absence of functional…

Investigates the functional projections in second-language (L2) acquisition by examining the emergence of functional categories in the L2 acquisition of French by children. Data include the productive use of determiners, inflection, case marking, subject clitics, wh-questions, and correct negative placement. (57 references) (Author/CK)