Sample Size in Qualitative Interview Studies

@article{Malterud2016SampleSI,
  title={Sample Size in Qualitative Interview Studies},
  author={Kirsti Malterud and Volkert Dirk Siersma and Ann Dorrit Guassora},
  journal={Qualitative Health Research},
  year={2016},
  volume={26},
  pages={1753 - 1760}
}
Sample sizes must be ascertained in qualitative studies like in quantitative studies but not by the same means. The prevailing concept for sample size in qualitative studies is “saturation.” Saturation is closely tied to a specific methodology, and the term is inconsistently applied. We propose the concept “information power” to guide adequate sample size for qualitative studies. Information power indicates that the more information the sample holds, relevant for the actual study, the lower… 
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