One thing that is very important with respect to Marxism in social research such as ethnography is the understanding adopted there of what kind of theory Marxist theory is and isn't and what consequences this has for its key concepts, their status, and what they represent philosophically as well as practically (i.e., in praxis). One important concept is the concept of social class. The Marxist concept of social class is very different to the class conceptions held in other research traditions. This isn't always fully appreciated by all critics of Marxist analysis in the social sciences.