The reply to this query, after all, is dependent upon your particular analysis query. Nonetheless, it’s useful to overview what has been executed in earlier literature. A paper by Vasileiou et al. (2018) carried out a scientific literature overview of all revealed research utilizing a single-interview-per-participant designs inside three health-related journals: British Medical Journal (BMJ), British Journal of Well being Psychology (BJHP), and Sociology of Well being & Sickness (SHI). Research revealed in these 3 journals between January 2003 and September 2017 have been evaluated.
Total, the median variety of interviews was 31 for BMJ, 15 for BJHP, and 30.5 for SHI. Extra info on the distribution of interviewees per examine is proven within the graph under.
Total, 72.0% of articles offering no justification for the pattern measurement chosen. By journal, “simply over 50% of articles within the BMJ and BJHP and 82% within the SHI didn’t present any pattern measurement justification.”
What rationale(s) did authors use to justify their pattern measurement? Saturation was commonest adopted by pragmatic issues.
Extra element and examples of those justifications might be discovered in the event you learn the total article right here.