LAUSR

The study examined the role of phonological awareness and morphological awareness in concurrent and subsequent oral vocabulary among Chinese–English bilingual children who learned Chinese as their heritage language and English as their societal language. Ninety-one Chinese–English bilingual children in kindergarten and Grade 1 who were recruited from Chinese heritage language classes in Canada, participated in the study. They were tested twice, 1 year apart, on a battery of cognitive and literacy measures in Chinese and English. The results indicated that for oral vocabulary, morphological awareness was the only concurrent predictor in both languages. English morphological awareness made a direct contribution to English vocabulary measured a year later. By contrast, the contribution of morphological awareness to vocabulary in Chinese at Time 2 was indirect and mediated by vocabulary at Time 1. Phonological awareness did not make a significant contribution to vocabulary at Times 1 or 2 in either language. Our results highlight the importance of morphological awareness in oral vocabulary for children learning Chinese and English.