I find that those pre-tests can be used later in the course to show a student how far they've come. In my legal classes I use this a lot. In particular, I use a pre-test in contracts with just one test question - "What is a contract?" As we go through the course, I have them pull out their answers from the first day, and we as a class add to that definition based on what we have been covering. The students like it because they can see immediately where they've been and where they are. Anyone else find a diagnostic assessment that can be used in this way?