Sorry, but Quiz Analytics is accessible for students, this is the reason we like it. As in our opinion students should know how they are doing and also how others student do.
We have been testing the plugin with students ( 15-16 year-old). They reported information is excessive, so we have decided to adapt the plugin, and to reduce the amount of info (only 4 graphs and shorter texts).
We are going to test it again
You could have a look at https://formulas.compasspro.eu/mod/quiz/view.php?id=204
In order to see how it works, you have to answer the quiz, then go to grades and click at Quiz Analytics.
Below is a screenshot of results for categories and other about scores distribution.
In my opinion it is very good plugin with an excellent support team. Working fine in M3.4.2
