<b>Persistent help text under a field lifts completion ~2.3% over hover tooltips on the same form.</b>

<b>Persistent help text under a field lifts completion ~2.3% over hover tooltips on the same form.</b>
From 5 paired tests; effect concentrated on mobile, where hover doesn't exist.
Tooltips hide information behind an interaction users may never trigger. On touch devices, hover is a tap that competes with the field itself.
— Tooltip ▮▮▮▮ completion
— Persistent text ▮▮▮▮▮▮ completion
Reserve tooltips for desktop-only, low-stakes fields. Use inline text wherever mobile traffic is meaningful.
Read the number, not the story. [n=5 tests · mobile-skewed]

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