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What Influences Saturation? Estimating Sample Sizes in Focus Group Research

Hennink, Monique M. ; Kaiser, Bonnie N. ; Weber, Mary Beth

Qualitative health research, 2019-08, Vol.29 (10), p.1483-1496 [Periódico revisado por pares]

Los Angeles, CA: SAGE Publications

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  • Título:
    What Influences Saturation? Estimating Sample Sizes in Focus Group Research
  • Autor: Hennink, Monique M. ; Kaiser, Bonnie N. ; Weber, Mary Beth
  • Assuntos: Adolescent ; Adult ; Clinical Coding - methods ; Diabetes ; Female ; Focus groups ; Focus Groups - methods ; Health technology assessment ; Humans ; Male ; Meaning ; Parameters ; Qualitative Research ; Research methodology ; Sample Size ; Saturation ; Stratification ; Young Adult
  • É parte de: Qualitative health research, 2019-08, Vol.29 (10), p.1483-1496
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
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  • Descrição: Saturation is commonly used to determine sample sizes in qualitative research, yet there is little guidance on what influences saturation. We aimed to assess saturation and identify parameters to estimate sample sizes for focus group studies in advance of data collection. We used two approaches to assess saturation in data from 10 focus group discussions. Four focus groups were sufficient to identify a range of new issues (code saturation), but more groups were needed to fully understand these issues (meaning saturation). Group stratification influenced meaning saturation, whereby one focus group per stratum was needed to identify issues; two groups per stratum provided a more comprehensive understanding of issues, but more groups per stratum provided little additional benefit. We identify six parameters influencing saturation in focus group data: study purpose, type of codes, group stratification, number of groups per stratum, and type and degree of saturation.
  • Editor: Los Angeles, CA: SAGE Publications
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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