I used the ATI Study Manual and the on line practice tests. I found the study manual helpful for reviewing basic concepts for the reading, math, and English sections. Most of the information on these three sections you've learned at some point in elementary in middle school. Reviewing the basic concepts of understanding how to interpret passages, basic math (and I mean REALLY basic - it doesn't go beyond very basic algebraic concepts that you cover in 8th grade at the latest, but you kind of forget how to solve basic math problems by hand because calculators are much more practical!), and basic rules of grammar
, parts of speech, sentence fluency, and what killed me was SUBJECT-VERB AGREEMENT!! I scored lowest on the English part of the test just for that reason... so I'd suggest really getting a firm understanding on subject-verb agreement because those questions can get pretty confusing and complicated.
My score breakdown by subject was 98% on reading, 100% on math, 92% on science, and 83% in English (I blame word processors and spell check
As for the science section, the study manual didn't help very much for me whatsoever. The study manual covers the basics, but the test asked pretty specific questions from all different science subjects. It covers everything from Anatomy, Biology (especially cellular biology), Chemistry, very basic Biochemistry, basic physics, common sense Earth science, and asks several questions about the scientific process and scientific reasoning in general.
Basically, I'd brush up on all basic concepts in all these subject, but for me it would have been a waste of time to study any particular concept in depth. If you did well in Anatomy, Chemistry, and Micro and actually paid attention and retained the major concepts, you should be able to figure out the answers using your knowledge from those classes. I personally felt like the science section was kind of one of those tests whether you already know the information or you don't. I took General Biology as well while at ASU which actually helped with several questions regarding natural selection, adaptation, and the specifics of genetics. Be sure to thoroughly understand the ins and outs of DNA and RNA! As for chemistry, definitely make sure you understand chemical bonds and the different types along with everything regarding protons, neutrons, and electrons. As for the Anatomy section, I thought the questions were pretty simple, but then again I just finished BIO 202 a few weeks ago so it was fresh in my head. This is for sure the hardest section to study for though because it's very broad and covers SO much information. There are general questions, but some questions get to be very specific and focused on one very small topic in a very large subject matter. So just try and use what you've learned so far in the prereq's!
I would for sure take the on line practice tests if you can! They're very similar to the actual test and give you a good feel for the test structure and the types of answers they're looking for. You get immediate feedback after answering each question with an explanation as to why it was right or wrong. It makes it easier to understand the train of thought they want you on when answering comprehension questions. Don't be discouraged if you don't do well on the practice test though, I scored 10% higher on the real test than I did on the practice and I think its just because I was more meticulous and took it more seriously when it became the real deal. Plus, some of the questions on the practice tests may help you answer questions on the real test.
Basically, just make sure you grasp all the general concepts and focus on concepts you are COMPLETELY unfamiliar with. When taking the test, try not to worry and just focus on doing your best! Take your time and make sure you read each question carefully... some of them purposely trick you. And be very careful not to make stupid math mistakes!! It's really easy to calculate things wrong when you're doing it by hand. So double check your work.
Hope that helps a little. Sorry that was so long, I just wanted to make sure to be thorough and help as much as I could... You still have some time to study up and review, so I'm sure you'll do fine! If you don't mind me asking... what's your select GPA?