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According to James Reason's Swiss Cheese Model of accident causation, what do the 'holes' in each slice of cheese represent?

Active failures and latent conditions that can allow an error trajectory to reach the patient

Individual clinicians who are prone to making mistakes

The number of patients harmed by a specific adverse event

Regulatory requirements that organizations must meet

to track

2026 Statistics

Key Facts: CPPS Exam

500

Passing Scaled Score

CBPPS Handbook (range 200-800)

120

Total Questions

100 scored + 20 pretest

2h 30m

Exam Duration

CBPPS Handbook

$549

Exam Fee (Domestic)

IHI / CBPPS ($649 international)

3 years

Recertification Cycle

45 CE hours or retest

7,000+

CPPS Certificants

IHI (50 U.S. states, 32 countries)

The CPPS exam is a 120-question, 2.5-hour computer-based test with 100 scored items and 20 unscored pretest items across 5 domains: Culture (18%), Leadership (18%), Patient Safety Risks & Solutions (22%), Measuring & Improving Performance (20%), and Systems Thinking & Design / Human Factors (22%). You need a scaled score of 500 (range 200-800) to pass. The fee is $549 domestic / $649 international. Eligibility requires a bachelor's degree + 3 years healthcare experience OR an associate degree + 5 years. Over 7,000 professionals across 50 U.S. states and 32 countries hold the credential. The program is NCCA-accredited. Recertification every 3 years requires 45 CE hours or a passing retest. Most candidates study 80-120 hours; questions emphasize application and analysis over recall.

Sample CPPS Practice Questions

Try these sample questions to test your CPPS exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1According to James Reason's Swiss Cheese Model of accident causation, what do the 'holes' in each slice of cheese represent?

A.Active failures and latent conditions that can allow an error trajectory to reach the patient

B.Individual clinicians who are prone to making mistakes

C.The number of patients harmed by a specific adverse event

D.Regulatory requirements that organizations must meet

Explanation: In James Reason's Swiss Cheese Model, each slice of cheese represents a defensive layer (policies, procedures, training, equipment safeguards). The holes represent active failures (unsafe acts at the sharp end) and latent conditions (flaws in design, management decisions, organizational culture). Harm occurs when holes in successive layers momentarily line up, allowing an accident trajectory to pass through. The model is central to the systems approach to patient safety.

2Under David Marx's Just Culture algorithm, how should a manager respond when a competent employee makes an inadvertent slip that harms a patient?

A.Console the employee and investigate the system factors that enabled the error

B.Suspend the employee pending a disciplinary review

C.Coach the employee on risk perception

D.Require mandatory remedial training for the entire unit

Explanation: David Marx's Just Culture algorithm distinguishes three behaviors: human error (inadvertent slips and lapses), at-risk behavior (drift from safe practice where risk is not perceived), and reckless behavior (conscious disregard of substantial risk). Human errors are consoled, not punished — the appropriate response is to investigate the system that allowed the error. At-risk behavior is coached. Reckless behavior is disciplined. Punishing human error drives reporting underground.

3Which of the following is a defining characteristic of a High Reliability Organization (HRO) as described by Weick and Sutcliffe?

A.Standardization of every clinical task to eliminate variation

B.Strict top-down command and control in all decisions

C.Preoccupation with failure — treating every near miss as a window into system weakness

D.Reliance on financial incentives to drive safe behavior

Explanation: Weick and Sutcliffe identified five principles of High Reliability Organizations: preoccupation with failure, reluctance to simplify interpretations, sensitivity to operations, commitment to resilience, and deference to expertise. HROs treat small failures and near misses as valuable signals rather than dismissing them. This mindfulness allows them to detect and contain problems before they cause harm, even in complex and hazardous environments like aviation, nuclear power, and healthcare.

4In Failure Modes and Effects Analysis (FMEA), how is the Risk Priority Number (RPN) calculated for each failure mode?

A.Severity + Occurrence + Detectability

B.Severity x Occurrence x Detectability

C.Severity x Frequency divided by Detection

D.Probability x Impact

Explanation: FMEA is a prospective (proactive) risk analysis tool. For each identified failure mode, the team scores Severity (how bad the outcome is), Occurrence (how often it happens), and Detectability (how likely the failure is to be caught before reaching the patient — a higher score means less detectable). These three values are multiplied to produce the Risk Priority Number (RPN), which helps the team prioritize which failure modes to address first. FMEA is endorsed by The Joint Commission and IHI.

5According to Reason's error classification, what is the key difference between a 'slip' and a 'mistake'?

A.A slip involves physical objects; a mistake involves decisions

B.A slip is an execution failure of a correct plan; a mistake is a planning failure

C.A slip is unintentional; a mistake is intentional

D.A slip is minor; a mistake is serious

Explanation: James Reason's Generic Error-Modeling System (GEMS) classifies unsafe acts as either errors or violations. Errors are split into skill-based slips and lapses (execution failures — the plan is correct but the action goes wrong), and rule-based or knowledge-based mistakes (planning failures — the action proceeds as intended but the plan is wrong). A nurse grabbing the wrong vial from a lookalike set is a slip; a clinician choosing an inappropriate antibiotic is a mistake. The distinction matters because different error types require different system interventions.

6Which AHRQ tool is specifically designed to measure staff perceptions of patient safety culture in hospitals?

A.CAHPS Hospital Survey

B.Hospital Survey on Patient Safety Culture (SOPS)

C.Patient Safety Indicators (PSI-90)

D.Common Formats for Event Reporting

Explanation: The AHRQ Hospital Survey on Patient Safety Culture (now called SOPS Hospital Survey) is a validated instrument for assessing staff perceptions of safety culture. It measures composites such as teamwork, communication openness, non-punitive response to error, organizational learning, and management support for patient safety. Results are benchmarked against a national database. CAHPS measures patient experience, PSI-90 tracks adverse outcome rates, and Common Formats standardize event reporting.

7A sentinel event, as defined by The Joint Commission, is best described as:

A.A patient safety event that reaches a patient and results in death, permanent harm, or severe temporary harm

B.Any medication error regardless of outcome

C.A near miss caught before reaching the patient

D.Any patient fall in a healthcare facility

Explanation: The Joint Commission defines a sentinel event as a patient safety event (not primarily related to the natural course of the patient's illness) that reaches a patient and results in death, permanent harm, or severe temporary harm requiring intervention to sustain life. Sentinel events signal the need for immediate investigation and response, typically via a Root Cause Analysis (RCA or RCA²). Not all adverse events are sentinel — a near miss or an event that does not cause significant harm would not qualify.

8What are the three questions that form the foundation of the IHI Model for Improvement?

A.What are we trying to accomplish? How will we know a change is an improvement? What changes can we make that will result in improvement?

B.What is the problem? Who is responsible? How long will it take?

C.What is the risk? What is the benefit? What is the cost?

D.What is the process? What is the outcome? What is the balancing measure?

Explanation: The IHI Model for Improvement, developed by Associates in Process Improvement, is built on three foundational questions: (1) What are we trying to accomplish? (aim), (2) How will we know that a change is an improvement? (measures), and (3) What changes can we make that will result in improvement? (change ideas). These are coupled with the Plan-Do-Study-Act (PDSA) cycle for rapid iterative testing of changes. It is one of the most widely used improvement frameworks in healthcare.

9In Plan-Do-Study-Act (PDSA) cycles, what is the primary purpose of the 'Study' phase?

A.Identify new problems to solve in the next improvement project

B.Implement the change across the entire organization

C.Plan the next large-scale rollout of the intervention

D.Compare the observed results against the predictions made during the Plan phase and summarize what was learned

Explanation: In the PDSA cycle, the Study phase is where the team compares the observed results of the small test of change against their predictions made during the Plan phase. The goal is to learn — did the change work as expected? What was surprising? What should be adjusted? The Act phase then decides whether to adopt, adapt, or abandon the change. Skipping rigorous Study reduces PDSA to trial-and-error and undermines the learning cycle.

10According to the National Quality Forum (NQF) and CMS, which of the following is classified as a 'Never Event'?

A.Wrong-site, wrong-patient, or wrong-procedure surgery

B.Patient readmission within 30 days

C.Elevated blood pressure during a clinic visit

D.A positive culture result after routine urinary catheterization

Explanation: The NQF's list of Serious Reportable Events (SREs), commonly known as 'Never Events,' includes surgical events such as wrong-site, wrong-patient, or wrong-procedure surgery, retained foreign objects, and intraoperative or immediately post-operative death in an ASA Class I patient. CMS has adopted many of these as Hospital Acquired Conditions (HACs) for which payment is withheld. Never Events are considered largely preventable and serious enough to warrant public reporting and immediate investigation.

About the CPPS Exam

The CPPS (Certified Professional in Patient Safety) exam validates mastery of patient safety science — including just culture, high reliability, human factors engineering, risk identification, RCA, FMEA, performance measurement, and improvement methodology. It is administered by the Certification Board for Professionals in Patient Safety (CBPPS), an affiliate of the Institute for Healthcare Improvement (IHI), and delivered by PSI at test centers or via live remote online proctoring.

Questions

120 scored questions

Time Limit

2 hours 30 minutes

Passing Score

500 (scaled, 200-800 range)

Exam Fee

$549 (domestic) / $649 (international) (CBPPS (IHI))

CPPS Exam Content Outline

22%

Patient Safety Risks & Solutions

Risk identification (FMEA, walk-arounds, hazard reports), RCA, evidence-based solutions (bundles, simulation, checklists, team training, structured communication), technology risk and interface evaluation, support for staff involved in adverse events, and workplace violence risk

22%

Systems Thinking & Design / Human Factors

Systems theory, normalized deviance, differentiating human error / at-risk behavior / reckless behavior, high reliability and resilience, SEIPS-style interactions among people, tools, tasks, environment and organization, and human factors engineering (fatigue, cognitive limits, forcing functions)

20%

Measuring & Improving Performance

Quantitative and qualitative data sources, statistical process control, run and control charts, Model for Improvement, PDSA cycles, process/outcome/balancing measures, project management, facilitation, and credible reporting to stakeholders

18%

Culture

Assessing safety culture (AHRQ SOPS, Safety Attitudes Questionnaire), raising awareness, fair and just culture (David Marx), transparency, disclosure of adverse events, supporting second victims, and engaging patients and families in the safety team

18%

Leadership

Aligning patient safety strategy with mission and goals, advocating for resources, transparent communication, interdisciplinary problem solving, embedding accountability, promoting high reliability principles, storytelling, regulatory readiness, and engaging diverse stakeholders

How to Pass the CPPS Exam

What You Need to Know

Passing score: 500 (scaled, 200-800 range)
Exam length: 120 questions
Time limit: 2 hours 30 minutes
Exam fee: $549 (domestic) / $649 (international)

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

CPPS Study Tips from Top Performers

1Master James Reason's Swiss Cheese Model and the distinction between active failures (sharp end) and latent conditions (blunt end) — several exam items probe this directly

2Learn David Marx's Just Culture algorithm and be able to differentiate human error (console), at-risk behavior (coach), and reckless behavior (discipline) — this is a fair and just culture cornerstone

3Study the IHI Framework for Safe Reliable and Effective Care (Leadership, Psychological Safety, Accountability, Teamwork & Communication, Negotiation, Transparency, Reliability, Improvement & Measurement, and Continuous Learning)

4Understand the hierarchy of actions / hierarchy of effectiveness — why forcing functions and automation are strong interventions and why training and policy alone are weak

5Know the difference between RCA (Root Cause Analysis) and the newer RCA squared (RCA²) approach emphasized by NPSF/IHI, including action evaluation and strong vs weak actions

6Be comfortable reading run charts and control charts — know the rules for detecting special cause variation (8 points on one side, 6 point trend, astronomical point, shift)

7Memorize the Model for Improvement three questions (What are we trying to accomplish? How will we know change is improvement? What changes can we make?) and the PDSA cycle

8Study high reliability organization (HRO) characteristics: preoccupation with failure, reluctance to simplify, sensitivity to operations, commitment to resilience, deference to expertise

Frequently Asked Questions

What is the CPPS exam format and length?

The CPPS exam is a computer-based test consisting of 120 multiple-choice questions — 100 scored items plus 20 unscored pretest items. You have 2.5 hours (150 minutes) to complete the exam. Questions are 4-option multiple choice, and most items test application and analysis rather than simple recall. The exam is delivered by PSI at PSI Assessment Centers or via live remote online proctoring.

What score do I need to pass the CPPS exam?

The CPPS passing score is 500 on a scaled score range of 200-800. CBPPS uses a criterion-referenced methodology — there is no curve, and candidates do not compete against one another. The minimum passing score is set using a modified Angoff method in which subject-matter experts estimate the difficulty of each item for a minimally qualified patient safety professional. Pre-equating ensures fairness across different exam forms.

Am I eligible to sit for the CPPS exam?

You must meet one of two pathways: (1) a baccalaureate degree or higher plus 3 years of healthcare experience, or (2) an associate degree or equivalent plus 5 years of healthcare experience. Experience must be in a healthcare setting or with a healthcare service provider, and can include time spent in clinical rotations and residency programs. Patient safety practices must be an integral component of your current or future professional responsibilities. CBPPS randomly audits applications.

How much does the CPPS exam cost?

The CPPS examination fee is US $549 for domestic candidates and US $649 for international candidates. There is no separate IHI member discount on the exam fee itself. The optional IHI CPPS Review Course is $449. If you recertify by taking the CE path instead of retesting, the recertification application fee is $225 (due every 3 years with 45 CE hours documented).

What are the 5 content domains on the CPPS exam?

The CPPS exam covers five domains per the official CBPPS content outline: (1) Culture — 18 items (18%), (2) Leadership — 18 items (18%), (3) Patient Safety Risks & Solutions — 22 items (22%), (4) Measuring & Improving Performance — 20 items (20%), and (5) Systems Thinking & Design / Human Factors — 22 items (22%). Items are distributed across three cognitive levels: 17 recall, 53 application, and 30 analysis.

How long should I study for the CPPS exam?

Most candidates study 80-120 hours over 8-16 weeks. Because most questions test application and analysis rather than recall, passive reading is not enough. Work through realistic scenario-based practice questions, study the IHI Framework for Safe Reliable and Effective Care, David Marx's Just Culture algorithm, James Reason's Swiss Cheese Model, and the AHRQ Patient Safety Network primers. The CBPPS also offers a paid 50-question Self-Assessment Examination (SAE).

What happens if I fail the CPPS exam?

Unsuccessful candidates may retake the exam after a 30-day waiting period. You may take the exam up to three times in a 12-month period. If you fail on your third attempt, you must wait one full year before reapplying. You must reapply through PSI and pay the full exam fee for each attempt. CBPPS recommends using the 30-day waiting period to review the content outline and address identified weak areas.

How do I maintain my CPPS credential?

CPPS certification is valid for 3 years. To recertify, you must either: (1) complete 45 continuing education (CE) hours that align with the CPPS content outline — accepted activities include educational programs, self-study, CPPS item writing, and academic coursework — and pay a $225 recertification application fee, OR (2) retake and pass the CPPS examination within one year prior to your expiration date. The CE path is the most common choice.