The content of the CCMSA items resembles the content of those in the multiple-choice component of Step 3 of the USMLE.
The content of the CCSSA items resembles the content of those in Step 2 CK of the USMLE. The content of the CBSSA items resembles the content of those in Step 1 of the United States Medical Licensing Examination® (USMLE®). The NBME offers three web-based self-assessments to medical students and graduates evaluating their readiness to take USMLE: In this post we will share you the links where you will be able to download NBME STEP 1 (1-20, 24) & CK & CMS Free. Download (FREE) NBME STEP 1 (1-20, 24) & CK & CMS I just took 17 and 18, didn't pay for the extended version but reviewed answer keys online, and I got a 670 -> 264 on both of them - yet I believe I got 9 questions wrong on NBME 17 but 12 wrong on NBME 18.
