I have been studying for the DATs for two months and my scores (on Topscore) are as follows: Biology 19, Chemistry 14, O.Chem 14, Quant. Reasoning 16, Reading Comp 25, PAT 21 I know I need to get my Chem, O. Chem, and math scores up, but after studying for two months with Kaplan and Barrons materials, I just can't seem to raise those scores. I can't afford to take the Kaplan class right now, so is there anything else I can use to study? Please help!!!