In order to facilitate reusing questions on future tests, it would be extremely helpful if the rules created during the grading a test were applied to each corresponding question so the instructor would not have to repeat that work every time that question was used.
I think this should be done at least the 100% and 0% correct answers. This would improve the quality of the questions without having to go in and manually change the question. It would be a huge time saver for future uses of that question (which is something that it looks like Populi promotes). --Basically a quality control and time saver issue for questions.
Currently this is a big issue for Greek. Students can have the correct answer (even for a single word short answer) in so many ways, based on how they use capitalization, accenting, breathing, apostrophes, and spaces. I would feel better about making all of these decisions (it is impossible to predict them all) if I knew that information was saved and would be used again the next time that I included the question on a test.
The only negative that I see, is the display of correct answers on the student side of the test. It might get a little cluttered. That could be cleaned up with a "display more" link (like you have in the knowledge base).
Thanks. If you use the test feature of Populi (which is fantastic! - BTW I always begin a test by asking for the name of a witness who will verify that they aren't cheating), please add your comments to this post.