默认效应:系统先选好选项,用户更容易保留它。它把「先检查再决定」压缩成「确认当前设置」;经典研究观察到人们常留在现状。预选值把现状写进流程。1
预选不是中立推荐。下拉菜单藏起其他选项,用户可能不展开,默认值就直接生效;需要比较的选项应直接展示。2
调用:用「默认效应」检查流程,指出预选项、未查看处和改法。它描述结构,不保证人人受影响。
References
- 1
- 2Does Your Form Really Need a Dropdown List?
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