Exactly^^. It all depends on what kind of person you are, what your knowledge base is, how well you do on standardized tests, etc. I have known people that took the DAT with minimal studying and did 20+ on it while others, such as myself, had to put in several weeks of hardcore studying to get desired results. One resource that I do recommend is Topscore. Besides looking a lot like the actual DAT it is also a good measure of your abilities and will reveal any problem areas in which you need to focus your efforts a bit more. Best of luck!