I am currently a phd student and exploring the notion of identity amongst a particular group of professionals working in higher education. At the moment I am looking at using grounded theory as my methodology, not entirely sure which version yet. However, I have been working on my research proposal and am trying to address how my sample size relates to my epistemological position. My position is aligned with Interpetivism. Can anyone provide guidance on how I can address this question, what do I need to ask myself?