Invited commentary: Resilience and positive youth development frameworks in developmental science.

Positive youth development (PYD) and resilience science differ in emphasis and focus but share many roots, assumptions, concepts, and goals. Both frameworks are grounded in developmental systems theory, both are focused on positive adaptation, and both are translational, sharing a common goal of promoting positive development. Yet there also are differences. This commentary examines the concepts, methods, and goals that define the PYD framework as embodied by the 4-H Study of PYD from the perspective of contemporary resilience science in human development, with an eye toward delineating similarities, differences, and future directions.