First Aid for the USMLE Step 1 book. I’m glad I did USMLERx because I was given an anatomy question on the Step 1 that was not UW. And it was a simple question regarding a ligament tear and I remembered it right away because I was not familiar with that concept. I can’t discuss which questions I got on my test because it’s against the USMLE rules, but if you do as many questions as possible then you covered all your ends. I can’t comment on Kaplan Qbank because I didn’t use it but the more questions you do the better. If you do all question banks UW (2 times), Kaplan QBank, and USMLERx then there should not be any reason for you not to be ready. If you do all the question banks then you have a high chance to kill the USMLE Step 1. I wish I did all the question banks, but I only did UW and half of USMLERx; that was once of my biggest regret for the test.
The USMLE World question bank is the highest rated question bank on the market. USMLE World (UW) is harder than the actual test and it’s the ultimate source to do well in the USMLE Step 1. There are other good question banks such as USMLErx and Kaplan Qbank but you should always make UW your primary question bank.
I completed USMLErx had various errors and I was able to identify them because I did one round of UW before I started on USMLERx.
On the test I saw some of the same questions tested in a simple manner. On UW a concept may be tested on 3 to 4 steps, while on the actual test the same concept may be tested on 1 to 2 steps.