I used to mometrix PSB for nursing study guide I found it helpful to some extent. Academic Aptitude is a killer, not because the subject matter is difficult but because of the amount of questions that need to be answered within a 15 minute time span. 90 questions, verbal, non-verbal and math. I managed to score an 82 in that section. I am sure others have a better approach but here is what I did. I tackled that section first. As i was moving through the test I was answering all the questions I knew the answers to. Primarily focusing on verbal and non-verbal as the answer were somewhat instinctual when looking at the options. Math on the other hand was tough and unfortunately I don't have any helpful tips to offer other than I answered all questions, even the ones I didn't know the answer to.