when i was studying for my DAT i only studied from kaplan, and i didn't do so well. i got a 16 as my total score and i have to retake it in december. 😡 i would suggest that you study from something else also, like a textbook. i heard for bio, a textbook by campbell is awesome! it's easy to read and the pictures are great. for gen chem and orgo, any college textbook is fine, since it's all straightforward. as long as you know your stuff, they won't give you any tricks. all i have to say is that kaplan is just not enough for the DAT. you have to get your info somewhere else, because kaplan is just "an appetizer" as some like to call it. 😛