Whether the size necessary? Sample size in qualitative research

Sławomir Pasikowski

The question about a sample size in qualitative research has been marginalized. Essentially because the issue is treated as peripheral and dependent on the state of theoretical saturation. The article provides an overview of research on the sample size coinciding with achieving this state. The conditions of the saturation and the factors determining the sample size also are discussed. On the base of the solutions developed in statistical research area the conception of mixing methods of sampling to maximize the credibility of the data and the theoretical saturation has been presented.