According to Robert Stead, Sociology is a social science and not a natural science, because it deals with human beings and social phenomena. It is positive and not normative science because it studies social phenomena as it is and not as it ought to be. It is pure and not applied science because it studies underlying factors of a social phenomenon. Sociology is an abstract and not a concrete science because it studies society in general. It deals with society, which in itself is abstract and as such the subject cannot be concrete. It is a science of generalization and not that of particularization because it studies a social problem in general and not in particular way. It does not study a social phenomenon from a particular angle. It is an empirical or rational science because it tries to follow logical method of data collection.