It uses the theories, methods, and ethnographic findings of anthropology to solve human problems. Applied anthropology is the praxis-based side of anthropological research; it includes researcher involvement and activism within the participating community. Applied Anthropologists can take on different roles in their work, such as researchers, policy analysts, program evaluators, change agents, managers, consultants etc. it has a huge variety of applications, and is often used to help solve global problems. The Society for Applied Anthropology aspires to promote the integration of anthropological perspectives and methods in solving human problems throughout the world; to advocate for fair and just public policy based upon sound research.