It is the goal of anthropology to establish as detailed a knowledge as possible about human life in its mind-boggling diversity, and to develop a con… - Thomas Hylland Eriksen

One reason for the increased interest in studies of identity in anthropology may be the fact that issues to do with the nature of groups have become hugely important in politics worldwide in the last decades.

In spite of the lack of clarity in the concept of society, the word is doubtless necessary. In everyday language, words denoting local communities, large-scale society and global society exist, and all refer to actually existing entities, existing at different systemic levels. Humans are integrated in (that is, they participate in and contribute to) several social systems, some operating at a large scale, others at a small scale. When anthropologists delineate their field of study, the level of scale is determined by the issues at hand.

In anthropological research, it is impossible to keep single variables constant. If one were to place a group of natives into an artificial, controlled situation, the resulting interaction would lose the very context that guarantees its authenticity, and the result would be useless. The closest anthropologists get to the methodological ideals of the experiment is therefore through comparison. One would then compare two or several societies with many similarities, but with one or a few striking differences.