Hey guys so I’m preparing for the 2017 May AP bio exam, and just now I’ve solved the first model test on the barrons book. I felt it was a little easier than I expected (cos I expected it to be extremely difficult, since only 5-6% of students who take the exam get a 5), and I got a high 4~low 5. Does anybody know how difficult the real exam is compared to the barrons practice tests?
I used the 8th edition, fyi 
Do you think this book helps a lot? I want to buy it, but I am not really sure.
I feel like it helps, but it doesn’t review everything in 100% detail. I’m using other books along with this.