Best ACRP-PI Practice Questions 2026: What to Expect on the Exam

What ACRP-PI Practice Questions Actually Look Like

Understanding the structure of real ACRP-PI exam questions is the single most important step you can take before opening a study guide. The exam, administered by the Association of Clinical Research Professionals (ACRP) and delivered through PSI at in-person test centers or via live remote proctoring, tests your ability to apply principal investigator judgment-not just recall definitions.

Every question on the 125-item exam is a four-option multiple-choice scenario. The stem typically presents a clinical trial situation-a protocol deviation, an informed consent dilemma, a data discrepancy, or a regulatory decision point-and asks what a PI should do or what best describes the correct course of action. You will almost never see a pure vocabulary question. Instead, expect scenario-based items that require you to synthesize ICH Good Clinical Practice guidelines, ethical obligations, and site management responsibilities simultaneously.

Practice questions that simply ask "What does ICH E6 define as a serious adverse event?" are less representative than questions that present an active participant safety situation and ask you to determine the correct reporting timeline. When you use our ACRP-PI practice test platform, every question is mapped to a specific domain and mirrors this application-first format.

Domain Breakdown: Where the Questions Come From

The 2024 CPI exam content outline organizes all exam content into six domains. Knowing the weight of each domain tells you exactly how many questions to expect-and where a few missed points cost the most.

Domain 2 and Domain 4 together account for 43% of the exam. If your practice test performance is weak in either area, you are leaving the largest pool of available points on the table. For a detailed breakdown of every competency within each domain, see our ACRP-PI Exam Domains 2026: Complete Guide to All 6 Content Areas.

High-Yield Question Topics by Domain

Not all content within a domain is equally likely to appear. Based on the structure of the 2024 content outline, certain competencies generate disproportionate numbers of practice-worthy scenarios.

For a deep dive into this critical domain, our ACRP-PI Domain 2: Ethical and Safety Considerations (22%) - Complete Study Guide 2026 covers every testable competency in structured detail.

Format, Timing, and Exam Mechanics

The exam runs 180 minutes for 125 questions, which gives you an average of 86 seconds per question. That sounds comfortable until you factor in complex scenario stems that may run four to six sentences before the actual question. Timed practice under realistic conditions is essential-not optional.

The scaled passing score is 600. Scaled scoring means your raw number correct is converted to a standardized scale, accounting for minor difficulty variations between exam forms. You do not need to achieve exactly a certain percentage of raw questions-you need to demonstrate consistent competency across domains. Candidates who score well in their strong domains but fail a weak domain significantly often fall below 600 overall.

The exam is ICH-only and not country-specific. An on-screen calculator and an abbreviation resource are provided. You will not need to memorize statistical formulas, but you should be able to interpret p-values, confidence intervals, and sample size rationale as they relate to a PI's protocol review obligations.

To understand how these mechanics translate to overall difficulty, read our How Hard Is the ACRP-PI Exam? Complete Difficulty Guide 2026.

How to Use Practice Questions Strategically

The most common mistake candidates make is using practice questions purely as a confidence check. A correct answer you cannot explain is nearly worthless; a wrong answer you fully understand is high-value learning. Here is how to structure practice question sessions around the ACRP-PI domain weights.

When you review a wrong answer, do not just read the explanation and move on. Identify why your reasoning failed: Did you misread the stem? Did you confuse a PI obligation with a sponsor obligation? Did you apply an outdated E6(R2) rule? Each error type points to a different remediation approach. Our ACRP-PI Study Guide 2026: How to Pass on Your First Attempt pairs this error-analysis framework with a full content review plan.

ICH E6(R3) and What It Means for 2026 Questions

Beginning July 15, 2026, ICH E6(R3) fully replaces E6(R2) as the governing GCP guideline for the ACRP-PI exam. This is not a minor revision-E6(R3) introduces a risk-based approach to quality management, revised oversight principles for electronic systems, and updated language around investigator responsibilities.

If you are using older practice question banks built on E6(R2), some answers may now be incorrect. Specifically, watch for questions about:

• Risk-proportionate oversight: E6(R3) explicitly supports risk-based monitoring and quality management. Questions may present scenarios where a PI must determine appropriate oversight intensity based on risk.
• Investigator responsibilities for electronic systems: E6(R3) updates expectations for how PIs validate and oversee electronic data systems at the site level.
• Essential documents: The list and organization of essential documents has been revised; some documents have been recategorized or renamed.

Any practice resource you use for a 2026 exam date must be explicitly updated to reflect E6(R3). Our practice test platform is updated to reflect the July 2026 ICH E6(R3) transition, so every scenario you encounter aligns with what you will face on exam day.

Sample Practice Questions with Explanations

The following examples demonstrate the style and reasoning required for actual ACRP-PI exam questions. These are representative examples based on the 2024 content outline-not copied from the official item bank.

Sample Question 1 - Domain 2: Ethical and Safety Considerations

Scenario: A participant enrolled in a Phase III oncology trial develops an unexpected Grade 3 hepatotoxicity event. The event resolves within 48 hours with dose modification. The event was not listed in the Investigator Brochure as an expected toxicity at Grade 3 severity.

Question: What is the PI's immediate reporting obligation?

1. Document in the source record and notify the sponsor at the next scheduled monitoring visit.
2. Report to the IRB only, since the event resolved without sequelae.
3. Notify the sponsor immediately and report to the IRB/IEC per institutional requirements because the event meets criteria for an unexpected serious adverse event.
4. File a protocol deviation report since the dose was modified outside of standard parameters.

Correct Answer: C. An unexpected Grade 3 event that is not listed in the IB at that severity meets the ICH E6 definition of an unexpected serious adverse event regardless of outcome. Immediate sponsor notification and expedited IRB reporting are required. Option A delays reporting improperly; Option B misroutes the reporting obligation; Option D misclassifies the event type entirely.

Sample Question 2 - Domain 4: Clinical Trial Operations

Scenario: During a routine monitoring visit, the CRA discovers that a study coordinator obtained informed consent from three participants without the PI or a sub-investigator present. The consent forms are signed and dated correctly. The participants are currently active in the study.

Question: What should the PI do first?

1. Withdraw the three participants immediately to protect the integrity of the data set.
2. Assess whether the coordinator was qualified and delegated to obtain consent, and document corrective actions including re-consent if required by the IRB.
3. Notify the FDA within 72 hours of the discovery.
4. Continue the study without action since the consent forms appear procedurally correct.

Correct Answer: B. The PI must evaluate whether a protocol deviation occurred based on the consent process requirements specified in the protocol and IRB approval. Delegation authority, staff qualification, and IRB guidance on re-consent all factor into the corrective action plan. Automatic withdrawal (A) is not indicated without an IRB determination; FDA notification (C) is not the first step; inaction (D) is inappropriate when a potential deviation has been identified.

For full-length simulated exams with domain-tagged questions and detailed answer rationales, start your free ACRP-PI practice test session now. You can also explore our ACRP-PI Exam Day Tips: 15 Strategies to Maximize Your Score to complement your question practice with execution strategies.

Understanding exam costs alongside your prep investment is also worth considering-our ACRP-PI Certification Cost 2026: Complete Pricing Breakdown covers everything from the early-bird member fee of $435 to the regular non-member rate of $600, plus recertification expenses.

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