Usability Guideline Usability.gov 13:9
Radio buttons are easier to use than drop-downs when there are 6 choices or fewer.
One usability study showed radio buttons give reliably better performance than drop-down lists for mutually exclusive selections. If screen space allows use radio buttons instead of lists/dropdowns with fewer than 7 items.
- 1.0 Feb 2007 Added.
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Rule ID: UseGov13.9