Acculturation and developmental theories and frameworks have merged steadily to portray the development and adaptation of immigrant children more comprehensively. In this article, we trace this evolution to show how research has increasingly provided greater specificity in identifying the domains, dimensions, and contexts of acculturation processes, as integrated with greater concern for developmental principles. Although models have become more complex and comprehensive, we still need well-formulated theoretical explanations for the many processes that link development with acculturation and subsequent adjustment. We argue that novel developmental and acculturation concepts could advance specific lines of research situated in these complex models. By continuing to integrate developmental science and acculturation research more explicitly, we can arrive at a clearer and more complete understanding of how immigrant children and youth adapt across the lifespan.We live in an age of global migration (Castles, de Haas, & Miller, 2016). While migration can afford children and families opportunities to thrive and develop new competencies, it also carries risks of marginalization and exclusion. Addressing these challenges requires a deep understanding of how immigrant children develop and adjust in their new countries. Over the last 2 decades, acculturation and developmental models and theories have merged steadily to offer increasingly comprehensive ways to understand how immigrant children adapt. In this article, we describe the evolving integration of major acculturation and developmental models, and then suggest new paths forward.
EVOLVING MODELS INCORPORATING ACCULTURATION AND DEVELOPMENTThe concept of acculturation has been at the cornerstone of understanding adjustment of immigrant children and youth. On an individual level, acculturation refers to how individuals change and adapt as a result of longer term, continuous contact with a new culture (Ward & Geeraert, 2016). One of the most generative acculturation frameworks has been Berry's two-dimensional model (Berry, 1980(Berry, , 2003, which addresses the degree to which individuals orient toward the majority culture and the heritage culture. Berry's writings on acculturation have been updated as the study of acculturation expanded, with several key concepts remaining constant (Berry, 2008). Berry consistently emphasized the great individual variation in acculturation strategies and adaptation, and highlighted the need to understand nested contexts-that is, that individuals live in groups that exist in communities and countries with varying national policies and attitudes regarding immigration. Thus, acculturation strategies were not just orientations on an individual level, but were influenced by and also occurred on an ethnocultural group level, societal level, and global level (Berry, 2003(Berry, , 2008. Nonetheless, in research, this contextual complexity was often lost in translation because most studies focused on individual-level acculturation strategies, ...