“…For these learners, transfer occurs from a highly proficient L1 to a less proficient L2. However, recent studies have demonstrated cross-language transfer of metalinguistic skills from the L2 to L1, or in both directions in emerging bilinguals acquiring two languages simultaneously (e.g., Chen, Xu, Nguyen, Hong, & Wang, 2010;Chung, Chen, & Deacon, 2018a). To expand the scope of the transfer facilitation model, Chung, Chen, and Geva (2018b) proposes an interactive framework, which identifies key factors that influence transfer in both directions in bilingual learners of different levels of proficiency.…”