Marshall M N
Institute of General Practice, University of Exeter, Postgraduate Medical School, UK.
Fam Pract. 1996 Dec;13(6):522-5. doi: 10.1093/fampra/13.6.522.
The probability sampling techniques used for quantitative studies are rarely appropriate when conducting qualitative research. This article considers and explains the differences between the two approaches and describes three broad categories of naturalistic sampling: convenience, judgement and theoretical models. The principles are illustrated with practical examples from the author's own research.
在进行定性研究时，用于定量研究的概率抽样技术很少适用。本文思考并解释了这两种方法之间的差异，并描述了自然主义抽样的三大类：便利抽样、判断抽样和理论模型抽样。文中用作者自身研究中的实际例子对这些原则进行了说明。
