Critical theory is concerned with more than negative judgement. It refers to a much more positive act of exposing existing beliefs and values that restrict or limit human freedom. In effect, critical theory sets out to explain the social order in such a way as to serve as a catalyst for the transformation of that order (Nielson 1990). The purpose of knowledge generation within a critical framework is to promote social change. Knowledge is dynamic, changing and embedded in the socio-political
context of the time