Is CASPer prep worth it?

CASPer prep is worth it in one situation and close to worthless in another. It is worth it if you have no reliable way to structure an answer under a clock, or you have sat the test and cannot name what went wrong, and what you are buying is a method plus somebody marking your own writing. It is close to worthless if you are already structured and are buying more scenarios to read, because reading trains recognition and the test scores production. Acuity Insights sets the ceiling honestly: applicants cannot study for Casper, but they can prepare.

What can preparation actually change?

Three things, and it helps to be specific about them because “prep” is doing a lot of vague work in most people’s heads.

Your structure. Whether you have a repeatable way to move from a confusing situation to a committed action. This is the largest single gain and the one most applicants have never deliberately built.

Your execution under a clock. Typing speed, opening sentences, the discipline to stop restating the scenario. Pure rehearsal. Nothing conceptual about it.

Your recovery. Acuity states that each scenario is scored by a different rater, so the real cost of a bad scenario is the scenarios after it. Practising the reset is a trainable skill and it is almost never taught.

What preparation cannot change is the cohort you are ranked against. Your score is standardized within your own test instance. That is why nobody can promise you a quartile, and why any guarantee of one tells you something about the seller rather than about the test.

What are the categories of preparation, and what is each good for?

There are four broad approaches on the market. All four have a legitimate use and the question is which one matches what you are missing.

Free official material. Acuity’s full-length practice test, taken under real conditions at the real time of day, plus the guidance on its own site. This is the highest value per dollar available anywhere, because the price is zero and it is the only rehearsal that includes your connection, your room and your nerves. Everyone should do this regardless of what else they buy. Then sit the free CASPer mock exam on this site, which I mark personally.

Large scenario banks. Hundreds of practice scenarios, usually with sample answers. Good if your problem is volume and you already have a method. A poor fit if you do not, because a bank without a structure produces a lot of reading and very little rehearsal.

Structured courses. A method taught in sequence, applied to scenarios, usually with a practice test or two. Good if you have no repeatable approach. The thing to check before buying is whether anything you write is ever read by a human.

One-to-one coaching. Someone marks your actual answers and tells you what is missing. The most expensive per hour and the only category that can find the specific habit costing you marks, because it is the only one that looks at your writing. Good for retakers and for people who plateau.

Nobody should buy all four. Most people who ask me this question need the first, plus exactly one of the other three.

How do I tell an honest offer from a bad one?

UBC’s own admissions site puts the warning better than a prep site can: applicants are told to be very wary of costly preparatory services that claim to have “real” questions. That is a good first filter, and here are three more.

A promise of a quartile is a promise nobody can keep, because the comparison group does not exist until test day. What can honestly be promised is the method, the marking and the hours. The 4th Quartile Promise on this site is worded as continued work, not a guaranteed number, for exactly that reason.

Ask what happens to something you write. If the answer is that you compare it to a model answer yourself, you are buying a scenario bank, which is fine, as long as you know that is what you are buying.

Ask who teaches it. Not for the credential, for the specificity. Somebody who has actually sat the test can tell you what the last thirty seconds of a typed response feel like. Somebody who has not will talk about competencies.

A question, and two answers

This is the question to ask yourself before you spend anything, and it is a harder question than “is it worth it”.

Question. “What specifically went wrong last time, and how do I know?”

A weak answer. “I think I just did not prepare enough. I read some scenarios but I did not do that many, and I ran out of time on a couple of them. I probably need to do more practice and get more familiar with the format.”

A strong answer. “I do not know, and that is the finding. I got a 3rd-quartile result and no feedback, so everything I believe about what went wrong is a guess. What I can actually establish is narrower. I know I finished nine of my typed answers and had two that ended mid-sentence, because I remember it. I know that when I sat down afterwards and wrote out what I had said for the first scenario, there was no point in it where I said what I would ask the other person; I had gone straight from the situation to a decision. Those two things are checkable and both are fixable. Everything else is speculation. So the thing I should buy is not more scenarios, it is somebody reading four of my answers and telling me whether the pattern I found in one is in all four.”

What separates them. The weak answer diagnoses effort, which is the default explanation for every disappointing result and is almost never the actual cause. It then prescribes more of what did not work. The strong answer starts by admitting it does not know, separates what it can establish from what it is guessing, produces two concrete checkable observations, and derives the purchase from the diagnosis rather than the other way round. It also arrives at the cheaper, narrower intervention. That is usually where the honest answer lands.

Key numbers

• Acuity states applicants cannot study for Casper but they can prepare.
• Scores are standardized within your test instance, so no course can guarantee a quartile.
• UBC’s site warns applicants to be very wary of costly services claiming to have real questions.
• The official full-length practice test costs nothing and is the highest-value single step.
• The entry program here is the Starter Success Package; the free CASPer mock exam costs nothing.

If you want a method plus somebody reading your actual answers, that is the CASPer programs, and a single session is the smallest way to test whether it helps.

Related: how to prepare for CASPer and CASPer prep courses compared.

Last reviewed 17 September 2026. Written by Arvin Ardakani, final-year medical student, 4th quartile on CASPer four times.