Applied anthropology refers to the application of the method and theory of anthropology to the analysis and solution of practical problems. In Applied Anthropology: Domains of Application, Kedia and Van Willigen define the process as a "complex of related, research-based, instrumental methods which produce change or stability in specific cultural systems through the provision of data, initiation of direct action, and/or the formulation of policy". More simply, applied anthropology is the praxis-based side of anthropological research; it includes researcher involvement and activism within the participating community.