Reference table
How progress bar speed affects survey drop-off
A summary table of a 2013 meta-analysis of 32 randomised web survey experiments on progress indicators. A bar moving at a steady pace did not significantly reduce drop-off, a bar that moved fast at first lowered it, and one that started slowly raised it. Useful for anyone designing course evaluations or student surveys who wants to know whether a progress bar is worth adding. Koji counts every follow-up in its progress display so the bar does not stall near the end.
What's in this reference table
| Progress bar pattern | What students see early | Effect on drop-off |
|---|---|---|
| Constant speed | Steady, honest progress | No significant reduction |
| Fast, then slow | Quick early gains | Lower drop-off |
| Slow, then fast | Little early progress | Higher drop-off |
| Constant, with a small incentive promised | Steady progress | Higher drop-off |
Use this image
Free to use in your docs, decks and posts under CC BY 4.0, as long as you credit Koji with a link to this page. To embed it, paste this into your page:
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<a href="https://www.koji.so/visuals/progress-bar-speed-effects-on-survey-drop-off"><img src="https://www.koji.so/visuals/progress-bar-speed-effects-on-survey-drop-off/progress-bar-speed-effects-on-survey-drop-off.png" alt="Table comparing four progress bar patterns in web surveys and their effect on drop-off, from a meta-analysis of 32 randomised experiments." width="1200" height="644" /></a>
<p>Source: <a href="https://www.koji.so/visuals/progress-bar-speed-effects-on-survey-drop-off">How progress bar speed affects survey drop-off</a>, Koji</p>
