Qbanks used by students: USMLE World> USMLERx > KaplanUSMLE World ("UWorld"): #1 question bank, has around 2,200 questions. It also offers 2 practice self-assessment exams you can buy seperately, each being 4 hours long (4 blocks, each block has 46 questions)There is a table in which you can convert your practice exam score to a 3 digit estimate of how you wouldhave scored if it was the real STEP1. These practice exams are called "UWSA1 and UWSA2". People say thatit overshoots your score by around 10 points. USMLERx ("Step 1 Qmax): Has around 2,300 questions made by the creators of First Aid. Each question hasa page number reference to First Aid for note taking and studying. Kaplan Step 1 Qbank: Has around 2,000 questions. However, students feel that questions are not similarto actual step questions, but they are good for learning/consolidating concepts. NBME self assessments: 6 practice exams offered by the creators of the USMLE, each one costs $50, but it is worthpaying an additional $10 dollars to see what questions you got wrong and how you performed on individualsubject areas. The current 6 exams: CBSSA 7, CBSSA 11, CBSSA 12, CBSSA 13, CBSSA 15, and CBSSA 16. Studentsonline say that the scores on practice exams match very closely with the real exam. Students also say thatimages from these practice exams also show up on the real exam, and some say that they have seen the samequestion stems on several occasions, but the question itself will be different (asking about what cells areaffected vs. what is the diagnosis). NBME also offers 150 free questions, but these quesions are much easierthan the real deal, and should only be taken for practice rather than actual self-assessment.