“…Note: Derived from Lerner et al (2005b) and Roth and Brooks-Gunn (2003a) a fundamental strength of human development, the hypothesis was generated that, if the strengths of youth (e.g., as represented by the S, O, and C components of intentional self regulation; Freund and Baltes 2002;Gestsdóttir and Lerner 2008) are aligned with resources for healthy growth present in the key contexts of adolescent development-the home, the school, and the communitythen enhancements in positive functioning at any one point in time (i.e., well-being; Lerner 2004) will be more likely to occur; in turn, the systematic promotion of positive development (i.e., thriving; e.g., Lerner 2004;Lerner et al 2005a, b) will occur across time. A key subsidiary hypothesis is that there exist, across the key settings of youth development (i.e., families, schools, and communities) ''developmental assets'' , that is, features of the ecology of human development that support the growth of a healthy youth.…”