What makes a comprehension check safe to use?#
Three rules. It can be challenged. It produces no score. And it is never used for performance management. A check that feeds an appraisal stops measuring understanding and starts measuring willingness to look competent, which is the opposite of what it is for.
What happens when a check reveals a gap?#
The first assumption is that the explanation failed, not the person. A gap is evidence about the brief: what changed was not conveyed, or the delta did not reach the reader in a form they could use.
That makes the check a feedback signal for comprehension engineering rather than a gate on the individual. It tells you the understanding did not arrive, which is a fact about the system that produced it.