Background Promoting well-being of young people within the positive youth development (PYD) framework has been found to be promising. The basic models of PYD-the 5C's (competence, confidence, character, connection, and caring) and developmental assets (significant relationships, skills, opportunities and values that promote thriving exemplified by external assets or environmental resources and internal assets or interpersonal strengths), have been largely shown to promote positive aspects of development among diverse samples of young people. However, PYD research has mainly been conducted within the US context. Objectives Explore the generalizability of the PYD framework to understand and promote positive aspects of development in young people beyond the US context. Method Six papers using cross-sectional methods reported data on adolescents and/or emerging adults (N = 6820) with diverse cultural backgrounds from ten countries (Brazil,