Diffusion of Innovations

The main concepts of the diffusion of innovations represent a hybrid change research and practice paradigm that blends ideas that can now be found in life cycle, evolutionary, and teleological theories of social change. This chapter discusses why the paradigm developed in the ways that it did, including the shortcomings of this approach, especially for studying the role of organizations in change processes. The chapter also examines the rapid rise of dissemination and implementation science as conducted by health services and public health researchers and how those new literatures are related to diffusion. This paradigmatic evolution from descriptive and explanatory studies to intervention research utilizing diffusion concepts is a theme of this chapter, with emphases on organizational implementation of innovations, inter-organizational diffusion, external validity of innovations and how a recognition of the agency of adopters can reshape diffusion study.