What Is A Casper?

What Is a Casper, Exactly?

"Casper" stands for Computer-Based Assessment for Sampling Personal Characteristics. It is an online situational judgment test used by admissions committees to evaluate how applicants think through interpersonal and professional dilemmas, rather than what facts they have memorized. Instead of picking an answer from a list, test-takers respond in their own words, either by typing or by speaking on camera, to short scenarios that put them in ambiguous, sometimes uncomfortable situations.

The name gets used loosely, so it's worth being precise: a Casper is not a personality inventory, not a resume screen, and not a knowledge test. It is a timed, proctored assessment of judgment. If you're trying to understand the format from the ground up, this page functions as the companion to our deeper breakdowns, including the Casper Study Guide 2026: How to Pass on Your First Attempt and the Casper Exam Domains 2026: Complete Guide to All 9 Content Areas.

Where Casper Came From

Casper was originally developed at McMaster University's Michael G. DeGroote School of Medicine and launched in 2015. It's now owned and administered by Acuity Insights, which was previously known as Altus Assessments. The test has scaled considerably since its early days: as of August 2024, it had surpassed 1 million test registrations across the programs that use it.

That growth matters for anyone trying to figure out how seriously to prepare. A test used at this scale isn't a niche hurdle - it has a defined, repeatable structure, documented scoring process, and enough historical data that candidates can meaningfully prepare for it rather than guessing blind. For a full explanation of the naming and history, see Casper Meaning and What Does Casper Stand For?.

How the Test Actually Works

Casper is delivered online with remote proctoring on scheduled sitting dates - there are no physical test centers. You'll need a desktop or laptop with a working webcam and microphone; smartphones and tablets are explicitly not supported, so plan your test-day setup accordingly.

For the 2026-2027 admission cycle, the structure is fixed:

• 11 total scenarios in a fixed order - 4 video-response scenarios first, followed by 7 typed-response scenarios.
• 2 open-ended questions per scenario, for 22 questions total.
• Video scenarios: 1 minute per question, recorded one at a time.
• Typed scenarios: both questions shown at once, with 3.5 minutes to answer the pair.
• Optional 30-second reflection period before each scenario to plan your response.
• Breaks: a 10-minute optional break after the video section, and a 5-minute optional break after the first four typed scenarios.

All together, the test runs an estimated 65 to 85 minutes. Note that scenario formats cannot be swapped - you can't request a typed version of a video scenario or vice versa - and speech-to-text tools are prohibited unless you have approved accommodations. If you're testing outside standard health professions admissions, be aware the Australian teacher education version differs: 8 scenarios in 45 to 65 minutes.

The Nine Domains Casper Scores

Every scenario is designed to surface one or more of nine personal and professional characteristics. Understanding these domains is the single most Casper-specific thing you can do to prepare, and it's the difference between generic "be a good communicator" advice and actually knowing what raters are trained to look for.

Because nearly every scenario is built around an interpersonal or professional dilemma, ethics and empathy carry the most practical weight in scoring - even scenarios nominally about problem solving or collaboration often hinge on how empathetically or ethically you frame your decision. For a scenario-by-scenario breakdown of how to recognize which domain is being tested, see Casper Exam Domains 2026: Complete Guide to All 9 Content Areas, and for a broader sense of difficulty across formats, check How Hard Is the Casper Exam? Complete Difficulty Guide 2026.

Registration, Fees, and Scheduling

Casper registration mechanics are specific and unforgiving, so it's worth knowing them before you book a sitting date. For US Medicine applicants, the registration fee is $85 USD. That fee covers the Casper test itself, the Duet value-alignment assessment, and distribution of your results to 7 programs. Additional program distributions cost roughly $18 each. Other health professions programs pay a lower base fee, and pricing varies by country and test type, so always confirm the exact fee for your specific program type before registering.

There are no academic prerequisites to sit for Casper - anyone applying to a program that requires it can register. However, you get exactly one attempt per test type per admissions cycle. Retakes are only granted for verified technical failures, and you must report the issue within one week of the affected sitting. Scores are valid for a single cycle only; they never carry forward, so if you reapply in a future cycle, you must retest from scratch.

For the exact windows and deadlines by cycle, see Casper Exam Dates 2026: Testing Windows, Deadlines & Scheduling, and for eligibility specifics, review Casper Requirements 2026: Eligibility, Prerequisites & How to Qualify. A full fee comparison across program types is available at Casper Certification Cost 2026: Complete Pricing Breakdown.

How Casper Scores Are Reported

Every single response on Casper is evaluated by a different trained human rater, using a 1 to 9 Likert scale. This matters practically: because a new rater sees each answer in isolation, consistency across all 22 responses matters more than trying to build a narrative across the whole test - each answer needs to independently demonstrate sound judgment.

There is no passing score on Casper. Applicants only see their result as a quartile, while the programs they've applied to receive the underlying score itself. Results are typically available 2 to 3 weeks after your sitting date. Because there's no fixed bar to clear, candidates often ask what actually counts as a "good" outcome - we cover that in detail in Casper Passing Score 2026: Exactly What You Need to Pass and Casper Pass Rate 2026: What the Data Shows.

Who Requires a Casper

Casper is used by admissions committees across health professions programs, and by other selective programs - including teacher education tracks in some countries - as a way to screen for personal and professional characteristics that transcripts and interviews don't reliably capture. Because it was built specifically to surface how applicants reason through ethical gray areas, programs use it as a complement to academic metrics, not a replacement for them.

If you're wondering whether the score genuinely factors into admissions decisions, or into career paths afterward, our analysis in Is the Casper Certification Worth It? Complete ROI Analysis 2026 and Casper Salary Guide 2026: Complete Earnings Analysis looks at that question directly. For a broader look at how programs and employers reference the test, see Casper Jobs and Casper Training.

Preparing Without Wasting Time

Because Casper has no content to memorize, generic study techniques only get you partway. What actually helps is deliberate practice against the domains and formats above - specifically alternating between timed video and timed typed responses so neither format catches you off guard on test day.

For a structured week-by-week plan built entirely around Casper's format and domains, see the Casper Study Guide 2026: How to Pass on Your First Attempt. And when you're ready to simulate real timing and scenario variety, our practice test platform lets you rehearse both video and typed formats under the actual time constraints before your scheduled sitting.

Many candidates also keep a condensed reference on hand in the final days before their test - our Casper Cheat Sheet 2026: One-Page Review of Must-Know Facts summarizes the format, timing, and domains in one page, and pairs well with a final run-through on the practice platform.

Frequently Asked Questions