Why Use 40 Participants in Quantitative UX Research?

Summary: 40 is the optimal sample size for many quantitative UX studies, ensuring a balance of precision, risk, and practicality.

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Why Use 40 Participants in Quantitative UX Research?

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How Many Participants for Quantitative Usability Studies: A Summary of Sample-Size Recommendations

40 participants is an appropriate number for most quantitative studies, but there are cases where you can recruit fewer users.

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Page Laubheimer is a former NN/G employee who worked on research, teaching, leadership, and design thought leadership. His expertise focused on web applications, AI, and projects in complex domains. His many research findings and recommendations were also informed by his background in library and information science, and his work often involved information architecture, navigation design, taxonomy construction, and ontology management.

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