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Code Saturation Versus Meaning Saturation: How Many Interviews Are Enough?

Monique M Hennink1, Bonnie N Kaiser2, Vincent C Marconi1,3

  • 11 Emory University, Atlanta, Georgia, USA.

Qualitative Health Research
|September 28, 2016
PubMed
Summary
This summary is machine-generated.

Qualitative research sample sizes differ based on saturation type. Code saturation is reached sooner than meaning saturation, which requires more interviews for a deeper understanding.

Keywords:
HIV/AIDSUSAbehaviorin-depth interviewsinfectionmethodologyqualitativesaturation

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Area of Science:

  • Social Sciences
  • Qualitative Research Methodology

Background:

  • Saturation is crucial for determining qualitative research sample sizes.
  • Limited methodological research exists on factors influencing saturation.

Purpose of the Study:

  • To compare code saturation and meaning saturation.
  • To examine sample sizes required for each saturation type.
  • To develop parameters for assessing and estimating saturation.

Main Methods:

  • Analysis of 25 in-depth interviews.
  • Comparison of two distinct saturation assessment approaches: code saturation and meaning saturation.

Main Results:

  • Code saturation was achieved with nine interviews, identifying the range of thematic issues.
  • Meaning saturation required 16 to 24 interviews for a richly textured understanding.
  • Distinction: code saturation means 'heard it all,' while meaning saturation means 'understand it all.'

Conclusions:

  • Meaning saturation necessitates larger sample sizes than code saturation in qualitative research.
  • Developed parameters can guide sample size estimation for qualitative research proposals.
  • Findings aid in documenting the basis for achieving saturation in publications.