Hello MNCASC,
Day 1 consists of all multiple-choice questions, while Day 2 is both multiple-choice questions and the CCS cases. On Day 1, you will have 232 multiple-choice items divided into 6 blocks of 38-39 items. You are given 60 minutes to complete each block. This ends up being about a 7 hour test if you include the 45 minutes of break time (plus the 5-minute optional tutorial). Day 2 is a bit longer and ends up being about 9 hours. 180 multiple-choice questions (6 blocks of 30 questions) and 45 minutes allotted for each block. There are 13 CCS questions (10-20 minutes each depending on the case). Plus, you get 45 minutes of break time.
According the the Step 3 website, biostats is primarily tested on the first day. But, I wouldn't be surprised if you saw a biostats Q during the multiple-choice section on Day 2. I know that in general biostats is heavily tested on Step 3. I personally recommend giving yourself a few days in between Day 1 and Day 2. Focus on biostats for Day 1 and focus on studying for CCS between Day 1 and Day 2. I ended up taking my Step 3 day 1 on a Friday and day 2 on a Monday and thought that worked out perfect as it gave me an entire weekend to dedicate to CCS studying. The CCS portion of the exam holds a lot of weight and there are many students who either do not pass or end up with low scores due to inadequate preparation for the CCS portion. In my opinion, UWorld is not the best resource when it comes to studying for the CCS portion. I would highly recommended purchasing and working through all the CCS Simulated cases at
USMLE Step 3 CCS Case Interactive Software Simulator - for PC & Mac. They provide you with 101 simulated cases and actually give you a grade and feedback, unlike UWorld. I think it's an incredible resource and definitely worth the money. They also provide you with 2 free simulated cases that you can try and test out prior to making any purchases. Definitely check it out.
Hope that helps! Best of luck with your Step 3!
- Annette G, MD, MPH - USMLE Tutor and Residency Advisor at Med School Tutors