Extending the Roy adaptation model to meet changing global needs.

The purpose of this article is to articulate how the Roy adaptation model has been extended as a conceptual framework to meet changing global needs. Nursing's social mandate is described within the significant global changes of this century. The required synthesis of the individual and common good is predicated within the thinking of the model. Changes are described with specific examples of groups from the family to global society levels. The implications of this work for knowledge development are identified.