As you can probably tell by the difficulty rating I’ve given it, the Principles of Supervision DSST is one of the easiest DSST exams out there. The overlap with the Principles of Management CLEP is pretty significant, so if you’ve studied for one, you’re already well on your way to passing the other. Just a heads-up—this exam was refreshed in 2009, so be careful when buying or using study materials. You’ll want to make sure anything you’re studying from applies to the updated version. A quick way to tell: the new version uses the 400-point scoring system, while the older one still uses a two-digit scale. If you picked up a bargain study guide on Ebay or Amazon and it's using that two digit score, it's probably for the older one. If you're looking for a quick and confidence-boosting exam to add to your list, this one’s a solid pick—especially if you've already prepped for or passed Management.