Rolfe (2006) states that if there is no unified qualitative research paradigm then it makes little sense to attempt to establish a set of generic criteria for making quality judgements about qualitative research study (Guba & Lincoln 1981). Various researchers such as Denzin and Lincoln (2005), HesseBiber and Leavy (2004) and Guba et al. (2000) discuss diverse ways of conceptualising validity in situated research approaches and some authors such as Agar (1986) have replaced the term validity with creditability, and Guba and Lincoln (1981) and Guba et al. (2000) similarly refer to credibility and transferability.