What question did this study set out to answer?

Assess saturation dynamics and identify practical parameters to estimate required sample sizes for focus group research prior to data collection.

January 10, 2019Qualitative Health ResearchOpen Access

What Influences Saturation? Estimating Sample Sizes in Focus Group Research

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Authors

MHMonique HenninkEmory University BKBonnie N. KaiserUniversity of California, San Diego MWMary Beth WeberRutgers, The State University of New Jersey

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Implication

Methodological study uncovers key parameters determining code and meaning saturation in focus group data, highlighting guidelines for sample size estimation prior to data collection.

Key Points

Assess saturation dynamics and identify practical parameters to estimate required sample sizes for focus group research prior to data collection.
Applied two analytical approaches to evaluate saturation across transcripts from 10 focus group discussions.
Assessed progression toward code saturation (identifying issues) versus meaning saturation (comprehensively understanding issues) across stratified groups.
Code saturation was reached within four focus group sessions, whereas meaning saturation required additional discussions.
One focus group per stratum was sufficient to identify core issues, and two groups per stratum provided a comprehensive understanding, with further groups adding minimal benefit.
Identified six parameters governing saturation: study purpose, type of codes, group stratification, number of groups per stratum, type of saturation, and degree of saturation.

Cite This Study

Hennink et al. (2019) studied this question.

synapsesocial.com/papers/69d72856cd480cb7e5f50c8c https://doi.org/10.1177/1049732318821692

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Implication

Methodological study uncovers key parameters determining code and meaning saturation in focus group data, highlighting guidelines for sample size estimation prior to data collection.

What Influences Saturation? Estimating Sample Sizes in Focus Group Research

Discussion

Member takes

Implication

Key Points

Cite This Study

What Influences Saturation? Estimating Sample Sizes in Focus Group Research

Discussion

Member takes

Implication

Key Points

Cite This Study

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