I look for references on the subject, thinking about a theoretical sampling and how does the sample saturate?
Thank you Lazlo, that would be my inclusion criteria. But as I get the saturation of the sample in numerical terms. Because I could be forever discovering new categories.
Theoretical sampling consists of additional sampling that you do to further develop a tentative theory you have developed from the data so far. Michael Annear's answer that saturation occurs when new data collection does not affect your current theory applies to (as far as I know) all versions of GT, not just Glasarian.
Have a look into the work of Janice M.Morse. In my eyes she is one of the really tough specialists on sampling in GTM. The nuances of theoretical sampling for grounded theory. In Handbook for Grounded Theory (2nd ed) (Ed by T. Bryant & K. Charmaz). Thousand Oaks, CA: Sage. Accepted, 01/21/2017.
Thank you David and Charles. Great answers. You really help me. Bests
Thank you Ricardo, really help me your answer.
Regards. Felipe
Dear Felipe,
In grounded theory, sampling is an iterative process in combination with data analysis and literature review. Whenever data analysis and literature review provide output for the need for further inquiries more respondents are to be sampled. The researcher first can go to the most obvious respondents for the research area of focus understudy to collect preliminary data. However, as categories and concepts are then identified more respondents under required circumstances are to be sampled, and collected data can reconfirm and further the development of theory using multiple pieces of evidence.
Glaser and Strauss advocated various sources and methods of data and data collection can be adopted for theoretical sampling to develop saturation of categories and properties. The diversity of data and data collecting techniques yield more information under a wide range of conditions of the main concern on a category rather than limited data sources and collection methods. Slices of data facilitate the width and depth of data leading to saturation of categories. Such “slices of data” allow grounded theorists obtain multi-faceted investigation in the main concern under study. Comparing the differences in the various data provides clues for properties of categories. The authors recommended that there are no limits on data and data collection. “All is data” (Glaser, 2001, p. 145).
Useful reading:
Glaser, B. G. (2001). The grounded theory perspective: Conceptualization contrasted with description: Sociology Press.
Glaser, B. G., & Strauss, A. L. (1967). The discovery of grounded theory: Strategies for qualitative research. Chicago, IL: Aldine.
Corbin, J., & Strauss, A. L. (2008). Basics of qualitative research: Techniques and procedures for developing grounded theory (3rd ed.). Thousand Oaks, CA: Sage.
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