0 Introduction -- Theoretical models and community-based programs for at-risk children and youth -- A risk and resilience framework for child and youth programs -- A positive youth development model for child and youth programs -- Interorganizational collaboration in child and youth programs -- The integrated prevention and early intervention model : integrating theory, intervention, and evaluation at the denver bridge project -- The integrated prevention and early intervention model : bridge project intervention components -- The integrated prevention and early intervention model : a guide to evaluation at the bridge project -- Community and participant outcomes from the Bridge project -- Where do we go from here? : advancing community-based programs for children and youth -- Appendix A: Study procedures -- Appendix B: Instruments.