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Index/Topics/Research Methodologies

Research Methodologies

The fact-check highlights the importance of methodological choices in estimating the prevalence of CNM, including sampling and definitions.

Fact-Checks

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Jan 26, 2026
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How common is consensual nonmonogamy?

is neither vanishingly rare nor the default: most rigorous estimates place the share of adults currently practicing CNM in the low single digits, while lifetime or “ever” measures vary widely—some stu...