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Confidence Intervals, Margins of Error, and Confidence Levels in UX

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A confidence-interval calculation gives a probabilistic estimate of how well a metric obtained from a study explains the behavior of your whole user population.

7 Confidence Intervals, Margins of Error, and Confidence Levels in UX Raluca Budiu Raluca Budiu June 27, 2021 2021-06-27 Share Email article Share on LinkedIn Share on Twitter Summary: A confidence-interval calculation gives a probabilistic estimate of how well a metric obtained from a study explains the behavior of your whole user population. Collecting metrics in usability studies has become a common practice. We routinely recommend that, whenever you report such a metric, you also include the corresponding confidence interval. But what is a confidence interval? Let us take a short detour to

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