Examined language differentiation in bilingual toddlers prior to the emergence of functional categories. The children were observed with each parent separately and both together. Results indicate that while these children did code mix, they were able to differentiate between their two languages. There was some evidence that language dominance…

Investigates the potential interference between the grammars of French-English bilingual children, ages two to three years. The study examined their acquisition of functional categories, specifically the properties of INFL (finiteness and agreement) and negation. Results indicate that these children evidence no transfer, acceleration, or delay in…

Examined whether there is an earlier developmental stage than 2 years of age when bilingual children do not use their languages in pragmatically differentiated ways. Analyses of recordings of four French-English bilingual children in Canada during free play sessions with their mothers and fathers suggest a stage very early in development when…