Good Morning Joanne!
I think it's not too hard to accomplish this - it's just probably a little bit more manual than you were hoping. Your course would probably look like:
- Pre-test (Quiz activity)
- Content
- Restricted until user completes pre-test
- Post-test (copy of pre-test)
- Restricted until user completes content
Then you can go into the pre/post test quiz activities and pull the reports and compare them (probably in Excel)
The only way I can think of to do it natively in Totara would be setting the Pre-test/content/Post-test as separate courses in part of a program. Then if the course grade = the quiz grade you would be able to pull a course completion report and be able to see the user's scores on both courses