Quality & Quantity

, Volume 41, Issue 1, pp 105–121 | Cite as

A Call for Qualitative Power Analyses

  • Anthony J. OnwuegbuzieEmail author
  • Nancy L. Leech


The purpose of this paper is to emphasize the importance of sampling and sample size considerations in all qualitative research. Such considerations would help qualitative researchers to select sample sizes and sampling designs that are most compatible with their research purposes. First, we discuss the importance of sampling in qualitative research. Next, we outline 24 designs for selecting a sample in qualitative research. We then discuss the importance of selecting a sample size that yields data that have a realistic chance of reaching data saturation, theoretical saturation, or informational redundancy. Based on the literature, we then provide sample size guidelines for several qualitative research designs. As such, we provide a framework for making sampling and sample size considerations in interpretive research.


Focus Group Qualitative Research Qualitative Researcher Purposeful Sampling Theoretical Saturation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer 2007

Authors and Affiliations

  1. 1.Department of Educational Measurement and Research, College of EducationUniversity of South FloridaTampaUSA
  2. 2.University of Colorado at Denver and Health Sciences CenterUSA

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