The present study explores the vocabulary development of bilingual children when neither of their languages has a minority language status. With both languages having high relative prestige, it is possible to address the impact of exposure variables: age of onset, length of exposure, and frequency of exposure (FoE) to both languages. Parents of 40…

Examines evidence offered to support the idea of a sensitive period for second language acquisition. Findings indicate that there is insufficient evidence to accept the claim that mastery of a second language is determined wholly, or even primarily, by maturational factors. (34 references) (Author/CK)