Asking how many interviews will be enough depends critically on why you are doing them. You could be doing interviews ‘as counting’: how many times when people say A do they also say B. Alternatively, the same interviewer and interviewees could be trying to explore meaning such that you begin to understand how people make sense of A happening when B has not. What would constitute good practice in terms of your research is therefore contingent on the nature of the knowledge claim that you hope to make. You will only be able to articulate a defensible position by setting out your position in relation to the ologies. This is why a PhD is a doctorate in philosophy and why you have to “defend” your thesis.


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