Introduction to the Special Section of Child Development on Positive Youth Development in Diverse and Global Contexts.

Positive youth development (PYD) research seeks to understand and promote positive aspects of development in young people. In this the special section, focused upon youth from diverse racial-ethnic backgrounds around the globe, we describe the origins and development of the field, identify key and emerging themes, and present the challenges for work in the area in the years ahead. Central to these are elements that are inherent in many of the articles that constitute the section: These include a need to articulate more clearly the role of social and cultural context in positive development, a need to refine the measures and methods used for collecting data, the significance of social identities, and engagement with other fields of study and with policymakers.