“…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. While findings of this special issue are largely consistent with the prediction of the transfer facilitation model (transfer from the L1 to L2), several studies also support the interactive transfer framework by demonstrating transfer from the L2 to L1.…”