Monitor the time it takes for users to complete an evaluation by measuring the duration from when they add an evaluation to when they click "submit."
Add a timer to an evaluation
In the evaluation builder, check the box in the evaluation's options to enable the timer. By default, the timer is shown to users when they are completing an evaluation. If you don't want the timer to be visible, check the box to hide the timer from evaluators.
Build a report using time spent on evaluations
Select which evaluation you'd like to target, then choose Time spent as the element of that evaluation to display on your report.