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In this article Anthony Tuckett discusses the complexities of qualitative research sampling. He analyses a research experience, together with the rationales for and limitations of qualitative research sampling. Further, he examines the reality of establishing and maintaining a purposeful/theoretical sample and how data saturation symbiotically interacts with constant comparison to guide sampling. Additionally sample limitations are countered. This paper is aimed at novice and experienced researchers in nursing interested in the practical reality of research, who are also mindful of the necessity for rigour.
Anthony Tuckett (Thu,) studied this question.