Purposive sampling is used in the second qualitative part where the interviewees are selected on the criterion of fields of study, i.e. arts and science (Ismail et al., 2010). This sampling technique is used for the semi-structured interviews in order to generate more relevant information (Ismail et al., 2010). Purposive sampling is a ‘type of sampling in which particular settings, persons, or events are deliberately selected for the important information they can provide’ , which is unavailable through other choices (Macwell, 1997, p. 87). With this in mind, Teddlie & Yadhakkori (1998) were followed in terms of halting both focus groups and in-depth interviews sampling when the mew groups and/or interviewees provided little or no new ideas and themes to those already obtained during the previous focus groups/interviews, i.e. when saturation had been achieved (Ismail et al., 2010). Details of the sampling techniques adopted are summarized in Table 5.4.