I took the Kaplan course, but was taking 20 units at the time and did not get much out of it. My Kaplan Diagnostic scores were pretty low in my opinion (18 AA & 18 PAT), so when school got out I studied 10-12 hours a day for 2 months. I used every resource Kaplan had available (Subject Tests, Full-Length Exams, Review notes, etc.). I bought 3 Examkracker books (1001 questions in Biology, G. Chem and O. Chem). I also bought as many computerized practice tests as I could: Top Score Pro, KSF Review and Ace the Dat. I didn't hear about it in time, but there is also DAT Achiever. Anyways, between studying the review notes and taking test after test my scores began to increase dramatically.
I spent 2 weeks on Biology, 2 weeks on G. Chem, 1 week on O. Chem, 1 week on Q. Reas and took at least 2 full-length computerized tests per week. As I went along in my studies I realized that I didn't need to dedicate extra time for R. Comp or PAT because the full-length exams were helping me a ton in those areas!!
Biology is simply the memorization of terms, so use whatever method it takes to get them in your head. In fact, a lot of the material is like that. There are conceptual problems on some of the other sections, but they will come with practice. Be sure to review the answers to the tests after you take them, this helped me more than anything. Read why you got certain problems wrong and also read why you got the others right. DON'T MISS THE SAME TYPES OF PROBLEMS MORE THAN ONCE!! The last 2 weeks I studied just those items that gave me trouble on the practice tests and began to taper off my studies. In the end I could not have been happier with my performance. I hope this helps and good luck!!
