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DATA-ETHICS6 MIN READ

Run a Subgroup Error Audit That Teaches You Something

Walk through a subgroup error audit that links group comparisons to a real business harm and a next action.

You own a support-priority model that decides which incoming cases get fast human escalation. Leadership wants a fairness audit before rollout. Start with the harm, define the relevant groups, compare error burdens at the live threshold, then decide what the gap should trigger. The common shortcut is to report only overall accuracy or one fairness metric with no reference to the actual workflow harm. That hides whether one group is bearing more missed escalations. Before The team says the model is 87% accurate and therefore probably fair enough. After The team can say which subgroup bears more false negatives at…

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