CHSOS Study Guide 2026: How to Pass on Your First Attempt

CHSOS Exam Overview: What You're Actually Signing Up For

The Certified Healthcare Simulation Operations Specialist credential, administered by the Society for Simulation in Healthcare (SSH) through its Certification Council, is a two-hour, computer-based exam of 115 four-option multiple-choice questions. Of those, 100 are scored and 15 are unscored pretest items you cannot identify during the test - so every question deserves full attention. There is no penalty for guessing, which changes how you should approach uncertain items on test day.

Registration and delivery run through SMT and Prometric, and the fee structure is tiered: $395 for SSH members and employees of supporting organizations, and $495 for nonmembers. If your employer is an SSH supporting organization, confirm that status before you pay - it's an easy way to save money without doing anything extra. For a full cost breakdown including hidden expenses like study materials and retake fees, see our CHSOS Certification Cost breakdown.

This guide is built around the 2024 examination content outline, which comes from the 2022-2023 practice analysis SSH conducted with working simulation operations specialists. That means the blueprint reflects actual job tasks, not theoretical curriculum - a detail that should shape how you study.

Eligibility Check Before You Register

Before you spend a dollar on the CHSOS exam, confirm you meet the eligibility bar. SSH requires:

• Active work in a healthcare-simulation operations role with learner-facing responsibilities (not purely administrative or IT support)
• A bachelor's degree, or an equivalent combination of education and experience
• At least two years of documented healthcare-simulation operations experience
• Three confidential references or reports verifying your role and competence

These aren't formalities - the references and experience documentation take time to assemble, especially if former supervisors have moved on. Start gathering contact information and role descriptions weeks before you plan to submit your application. Our detailed CHSOS Requirements guide walks through exactly how to document each piece so your application isn't delayed.

The Five Domains, Weighted Correctly

The CHSOS blueprint splits into five content domains, each with a fixed weight on the exam. Understanding these weights is the single most important planning decision you'll make, because it tells you where your study hours should go.

Together, Domains 2 and 3 account for 60% of the exam. If you only have time to deeply master two domains, make it those. For a deeper dive into what each domain actually tests and how questions are phrased, read our full CHSOS Exam Domains guide.

*Approximate distribution based on published domain weighting; actual per-candidate forms vary due to pretest items.

Why Simulation Technology Operations Deserves Extra Hours

Simulation Technology Operations sits at 35% - more than double the weight of Domain 1 and Domain 5, and more than the combined weight of Domains 1 and 4. This domain covers the hands-on technical backbone of the job: manikin programming and troubleshooting, audiovisual and recording systems, task trainer setup and maintenance, network and software configuration for simulation platforms, and equipment inventory management.

If your daily work already involves heavy hands-on manikin and AV work, this domain may feel intuitive. If your role leans more toward scheduling, coordination, or standardized patient training, you'll need deliberate study time here - this is where candidates from less technical backgrounds tend to lose points. Practicing scenario-based questions that simulate real equipment failures and setup sequences is far more useful than memorizing brand names or model numbers, since the exam tests operational judgment, not product trivia.

How the 115 Questions Actually Behave

Every question on the CHSOS exam is four-option multiple choice - no multi-select, no drag-and-drop, no simulation-based item types despite the exam's subject matter. This format matters for your study approach: you're not being asked to demonstrate hands-on skill during the test itself, you're being asked to recognize the correct operational response among four plausible options.

Because 15 of the 115 questions are unscored pretest items mixed in without identification, you cannot skip or rush questions based on a hunch that they "don't count." Treat all 115 with equal seriousness. And because there's no penalty for guessing, never leave a question blank - an educated guess costs you nothing and might be correct.

Passing requires a scaled score of 700. Scaled scoring means raw number-correct doesn't map directly to a percentage; SSH adjusts for item difficulty across different exam forms. Our CHSOS Passing Score explainer breaks down exactly what scaled scoring means for how many questions you likely need right. For a broader sense of how tough this exam feels compared to other certifications, see How Hard Is the CHSOS Exam?, and check CHSOS Pass Rate data for context on outcomes.

A Domain-Weighted Study Timeline

Generic study techniques only work when they're mapped to CHSOS's actual weighting. Below is a sample eight-week structure that front-loads the two heaviest domains and leaves room for a full practice exam near the end. Adjust the pace to your own schedule and prior experience level.

Running full-length timed practice sessions on our CHSOS practice test platform in the final week helps you get comfortable with pacing across all 115 questions before you're facing the real clock. For a condensed reference you can review the night before, keep our CHSOS Cheat Sheet handy.

Test Day Logistics: Prometric vs. ProProctor

You have two delivery options: an in-person Prometric test center or live remote proctoring through ProProctor from your own location. Both deliver the identical 115-question, two-hour exam - the choice comes down to your comfort with remote testing conditions versus travel to a physical center.

If you're testing remotely, verify your workspace meets ProProctor's requirements well before your scheduled slot: a private room, a stable internet connection, and an ID check process that mirrors what you'd encounter in person. If you need the ESL accommodation extending your time by one hour, that request must be approved in advance - it's not something you can invoke on the day of the exam.

Scheduling windows and how far in advance you should book are covered in detail in our CHSOS Exam Dates guide, which is worth checking before you lock in a date, especially around high-demand periods.

After You Pass: Recertification Math

Certification is valid for three years. To renew, you have two paths: earn 45 Continuing Professional Development (CPD) credits - with required activity in every one of the five content domains - or retake the exam. Most working specialists choose the CPD route since it aligns naturally with ongoing job responsibilities, conference attendance, and internal training.

The domain-spread requirement matters: you can't stack all 45 credits into Simulation Technology Operations and ignore Professional Role or Instructional Design. Plan CPD activities across the year so you're picking up credit in each domain rather than scrambling before your renewal deadline.

If you're still deciding whether the credential is worth pursuing at all given the cost and renewal commitment, our CHSOS ROI analysis and CHSOS Salary Guide lay out the career case in more detail. And if you're just getting oriented to the credential itself, start with What Is CHSOS? or the broader CHSOS Certification overview before diving into domain-level prep - you can always return to this CHSOS Study Guide once you're ready to plan your timeline.

Frequently Asked Questions