While language dominance has been crucial in the study of bilingualism, recent research has called for more detailed measures to systematically account for the observation that bilinguals use different languages in different domains, a phenomenon formalized in the Complementary Principle. Few studies have systematically measured these…

This study examines how a high-pressure family language policy (FLP) is implemented in South Korea, focusing on the experiences of a family with a preschool-aged child, Jay. The phenomenon of "English fever," which has led to the widespread adoption of intensive early childhood English education, has contributed to the increasing…