The weird thing is that I get message Attempts 80 (10 from your groups)
When I click this link I get There are no students in this group.
But the graph shows the group performance.
I suspect I should change something in mod/quiz/report/overview/report.php
I'm going to take the original question one step further..... When I go into quiz results, click on the link "198 students have made 231 attempts" and select "Show All Attempts", it lists 24 pages of information. The first & second page shows quizzes that are open (ie: never finished). When I click on the link for page 3 (& on up) no data appears.
Evidently it *thinks* there is data stored - and there must be. But how can I reveal that data?
The students who have been unerolled from the course are still in the Moodle database as "potential users". They still exist and have not been deleted from the system.
Any thoughts as to why the data does not appear on-screen or in downloaded files? Help.