N · Number

Choose a named move in this branch to open its working page and checks.

• Baseline and denominator

  Count the opportunities and exposures, not just the hits, so you know what the successes are out of.

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• Repeated or time-series measurement

  Measure the same thing repeatedly over time so you can tell real change from normal fluctuation.

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• Sample, survey, or instrument

  Use a defined population and a defensible measuring tool, and show the uncertainty instead of hiding it.

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