How long should you prep for CASPer?

The official position from Acuity Insights, the company that runs CASPer, is that no preparation is required. Some people take that at face value and things work out fine, but these tend to be people who are already strong at thinking on their feet, typing quickly, and communicating clearly under the stress of a timer. That is not most people.

Whether you need to prepare, and for how long, depends on you. But the honest answer is that most people are better off doing some preparation rather than none, because you do not know how you will react on the day until you are actually in it. The time pressure alone catches a lot of people off guard the first time.

If English is not your first language, if you are a slower typist, if you find timed conditions particularly stressful, or if you simply want to feel more confident going in, preparation is worth taking seriously. None of those things reflect on your reasoning ability. They are just practical factors that affect how you perform under test conditions, and practice directly addresses them.

How preparing for CASPer can help

At minimum, it is worth understanding the test format, how the timing works, and what the three question types are asking. Going into the test without that baseline puts you at a disadvantage that has nothing to do with your actual reasoning ability. Beyond that, the value of practice comes from getting feedback and identifying patterns in your responses, not from memorizing content or rehearsing answers.

CASPer has 11 scenarios, 4 video and 7 typed, with two questions each. Typed responses give you 3 minutes 30 seconds for both questions. Video responses give you 1 minute per question. That time pressure is real, and it is worth practicing under before test day.

If you have more than four weeks

You are in a good position. Use the first week to understand the test format and question types properly: what situational, reflective, and judgment questions are each asking, and what a strong response to each type looks like. Do not try to practice every day from day one. Build the mental model first, then start practicing.

From week two onward, practice two to three scenarios per session, two or three times a week. Get feedback on your responses and pay close attention to the patterns, not just whether a response is good or bad, but specifically why. Are you consistently skipping the reasoning behind your actions? Are your video responses less structured than your typed ones? Are you only considering one person's perspective? Identify the pattern early and you have more time to correct it.

If you have two to four weeks

This is the most common window for students who have just discovered CASPer is required for their program. It is enough time to make a meaningful difference, but you need to be focused rather than just busy.

Start by doing a few practice responses without any preparation to get a baseline sense of where you are. Then get feedback and look for the single biggest pattern in your responses. Focus your practice on that one thing. Students who try to fix everything at once tend to improve less than students who address one consistent gap deeply.

If you have less than two weeks

Do not panic, but do be realistic. You are not going to overhaul your natural response style in a week. What you can do is learn the structure of a strong response well enough to apply it consistently, and practice enough that the timing does not surprise you on the day.

Prioritize understanding what evaluators are looking for over doing large numbers of scenarios. Five well-analyzed practice responses with feedback will serve you better than twenty responses written with no reflection on what you are doing.

Make sure you also do at least one timed video response before your test day. Most students find their first video attempt uncomfortable regardless of how well their typed responses are going. You want that first uncomfortable attempt to happen in practice, not in your actual test.

How many practice scenarios is enough?

There is no magic number. What matters is that you are getting feedback and doing something different as a result. Ten scenarios with careful attention to feedback will move your score more than forty scenarios written on autopilot.

A reasonable target for most students is fifteen to twenty practice responses with feedback before their test date, spread across several sessions rather than in one sitting. That is enough volume to see patterns and enough time between sessions to actually adjust your approach.

One thing most students skip

Full-length timed practice. Most students practice individual scenarios but never simulate a full test sitting, eleven scenarios back to back, with video and typed sections, under real time conditions. Pacing is harder than it looks. The mental fatigue of scenario nine and ten is real. Taking at least one full CASPer practice test before your real sitting is worth the time investment regardless of how much prep you have done.