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A self-paced assessment series on the CATALYST platform, designed for learning through assessment.

The WelCOM assessment series is offered on the CATALYST platform and provides osteopathic medical students with the opportunity to reinforce their medical knowledge and determine any areas needed for additional study.

Through July 31, the NBOME is offering WelCOM at a special discount of $48 (normally $60).

WelCOM “welcomes” osteopathic medical students to engage in assessment for learning, prior to taking COMLEX-USA Level 1 and Level 2-CE. Phase 1 and Phase 2, which correspond to Level 1 and Level 2-CE of COMLEX-USA respectively, provide test questions that reflect the style and subject matter of COMLEX-USA.

WelCOM also offers additional learning resources to assist you in your studies. After responding to each WelCOM question, you'll recieve the correct answer, the rationale for why that answer is correct, and references for further study.

Unlike traditional examinations that give you a one-time snapshot of your performance after you’ve completed the exam, WelCOM uses an easy-to-read review panel that provides real-time progress to help you close the gaps in your knowledge.

WelCOM is also convenient, accessible 24/7 on your smartphone, tablet, desktop, or on the CATALYST app. It’s also customizable; you can answer one question, or as many as you like, on your own time.

CATALYST Dashboard on Mobile

CATALYST Demo on Mobile App

CATALYST Settings Tab



Phase Number of Forms Questions/Rationales Per Form
Phase 1 4 75
Phase 2 6 75