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April 14, 2025

Casper, Preview, and the MMI: The Truth About ‘Unpreppable’ Tests

Rob Humbracht and Ryan Kelly

They say you can’t prepare. They’re lying.

Medical schools (and test makers) love to say that situational judgment tests can’t be gamed. But history tells us otherwise—just like the MCAT and MMIs, there are clear patterns to master.

Casper: A Race Against the Clock

With three prompts per scenario and only five minutes to respond, Casper isn’t just testing judgment—it’s testing how fast you can type coherent responses under pressure.

Preview: A Multiple-Choice Crystal Ball

Preview asks you to rank responses based on how medical educators would answer—not how you should think through a situation. That means the best strategy is learning to predict their biases.

The MMI: Mini-Tests Disguised as Interviews

Unlike Casper and Preview, the MMI (Multiple Mini Interview) actually forces you to articulate and defend your decisions in real time. The key? Structured thinking and practice.

How to Actually Prepare (Despite What They Tell You)

From understanding test structures to practicing real-life scenarios, the secret to crushing these “unpreppable” tests is simple: Get familiar with the format, anticipate patterns, and practice under time constraints.

Surefire Tips for Crushing the Casper

Discover Key Info About Preview

Learn the Most Important MMI Mantras


Feel ready to test your skills? Take our FREE Casper Practice Test

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