Editing Nonprobability sampling (section)

==References==
{{Reflist|30em}}
*Berg, Sven.  (2006).  "Snowball Sampling–I," pp.&nbsp;7817–7821 in ''Encyclopedia of Statistical Sciences'', edited by Samuel Kotz, Campbell Read, N. Balakrishnan, and Brani Vidakovic.  Hoboken, NJ: John Wiley and Sons, Inc.
*Lucas, Samuel R. (2014a).  [https://doi.org/10.1007%2Fs11135-012-9775-3 "Beyond the Existence Proof:  Ontological Conditions, Epistemological Implications, and In-Depth Interview Research."],  ''Quality & Quantity'', 48: 387–408. {{doi|10.1007/s11135-012-9775-3}}.
*Lucas, Samuel R. (2014b).  [https://link.springer.com/content/pdf/10.1007%2Fs11135-013-9865-x.pdf "An Inconvenient Dataset: Bias and Inappropriate Inference in the Multilevel Model."],  ''Quality & Quantity'', 48: 1619–1649. {{doi|10.1007/s11135-013-9865-x}}
*Marshall, Martin N. (1996). "Sampling for Qualitative Research." ''Family Practice'' 13: 522–526. {{doi|10.1093/fampra/13.6.522}}
*Small, Mario L. (2009). "‘How many cases do I need?’ On science and the logic of case selection in field-based research." ''Ethnography'' 10: 5–38. {{doi|10.1177/1466138108099586}}
*Steinke, I. (2004). "Quality criteria in qualitative research". ''A companion to qualitative research'', 184–190. London: Sage Publications
*Strauss, A. and Corbin, J. (1990). [http://www.li.suu.edu/library/circulation/Stein/Comm%206020ksStraussCorbinBasicsQualitativeFall07.pdf "Basics of Qualitative Research"]. London: Sage Publications.
* Wiederman, Michael W.  (1999).  "Volunteer bias in sexuality research using college student participants." ''Journal of Sex Research'', 36: 59–66, {{doi|10.1080/00224499909551968}}.
*Yin, Robert K. (2014[1984]). ''Case study research: Design and methods''. Thousand Oaks: Sage publications.

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[[Category:Sampling techniques]]