Completion rate is the proportion of learners who reach the end of a course or module out of those who started it. It is the most widely reported metric in learning and development and among the least informative.
What it is
Typical figures: mandatory compliance training above 90%, cohort-based programmes 60–80%, assigned self-paced content 30–40%, open MOOCs below 15%.
The spread is driven almost entirely by enforcement and enrolment cost, not by content quality.
Why it matters
Completion is genuinely necessary for compliance evidence — regulators require proof of delivery. The problem is its use as an effectiveness measure, where it performs worst precisely when it looks best.
A common confusion
Where completion is enforced it converges on 100% and its information content converges on zero. A 94% completion rate is equally consistent with excellent training and with a workforce clicking through, and the metric cannot distinguish them.
Related
See also drop-off rate, time on task and content effectiveness. See the full glossary for the rest, or beyond completion rates for the wider context.
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