- The AMCB sets the CM passing score at 75 on its 0-100 scaled-score system, not a raw percentage.
- Antepartum and Intrapartum tie as the largest domains at 21% each of the 175-question exam.
- You get four attempts within 24 months of program completion, with a 30-day wait before your first retake.
- Initial exam fee is $425; each retake costs $350 through PSI.
What Is the CM Passing Score?
If you're preparing for the Certified Midwife examination through the American Midwifery Certification Board (AMCB), the number that matters most is 75. That's the passing score on AMCB's 0-100 scaled-score system for the national certification exam that leads to the CM credential. This is the same exam that awards the CNM credential to registered nurses, but the CM pathway is specifically for graduates of accredited midwifery programs who do not hold an RN license.
Because the exam serves both pathways with a single scoring standard, understanding exactly what that 75 represents - and how it's calculated - matters more than memorizing a percentage. A scaled score is not the same as "75% of 175 questions correct." Confusing the two is one of the most common mistakes candidates make when estimating their readiness.
How the 0-100 Scaled Score Actually Works
AMCB reports results on a 0-100 scale rather than a raw percentage of items answered correctly. This matters because the exam pulls from a pool of items that includes scattered, unidentified pretest questions mixed in with scored content. Those pretest items don't count toward your score, but you won't know which ones they are while you're testing - so every question deserves full attention.
Scaled scoring exists so that a candidate who sits for one version of the exam isn't disadvantaged compared to a candidate who sits for a slightly different form with marginally different item difficulty. In practice, this means:
- You cannot back-calculate your score by counting how many questions "felt right."
- Skipping or rushing through a block of questions in one domain can lower your scaled score even if you feel confident overall.
- There is no partial credit or curve based on how other test-takers performed that day - the passing score of 75 is a fixed standard.
For a deeper walkthrough of how many questions you need right, how the format is structured, and what a realistic study runway looks like, see the CM Study Guide 2026: How to Pass on Your First Attempt.
Key Takeaway
Don't try to reverse-engineer your score from memory after the exam. Focus your energy on covering all six domains thoroughly rather than estimating a raw percentage threshold.
Exam Format: 175 Questions, Four Hours
The computer-based exam, administered by PSI, consists of 175 four-option multiple-choice questions completed within a four-hour window. Calculators are prohibited, so any numerical reasoning - dosage calculations, gestational age math, lab value interpretation - has to be done manually. Breaks are allowed, but the clock keeps running, which means every minute you step away is a minute you're not answering questions.
A few format details that directly affect how you should pace yourself:
- Unidentified pretest items are scattered throughout the exam. You cannot identify or skip them, so treat every question as scored.
- Four answer choices only - no "all of the above" or multi-select complexity, which simplifies elimination strategy but rewards precise content knowledge.
- Results at the testing center - you'll know pass or fail before you leave PSI, with no waiting period for a mailed report.
With roughly 175 questions in 240 minutes, you have a little under 1.4 minutes per question on average. That's workable if you're not stalling on any single item, but it leaves almost no room for excessive deliberation on questions you're unsure about. If you want a full breakdown of how difficult candidates actually find the pacing and content, read How Hard Is the CM Exam? Complete Difficulty Guide 2026.
How the Six Domains Affect Your Score
The passing score of 75 isn't earned domain-by-domain - it's a composite across the entire exam. But since the domains are weighted unevenly, some content areas simply carry more scoring opportunity than others. The current weights, based on the 2022 Task Analysis and effective since January 1, 2023, are:
| Domain | Weight | Approx. Questions* |
|---|---|---|
| Antepartum | 21% | ~37 |
| Intrapartum | 21% | ~37 |
| Well Woman/Gyn | 19% | ~33 |
| Postpartum | 18% | ~32 |
| Women's Health/Primary Care | 11% | ~19 |
| Newborn | 10% | ~18 |
*Approximate distribution across the 175 scored and pretest items; exact counts vary by form.
Antepartum and Intrapartum are tied as the largest domains at 21% each - together they make up over 40% of the exam. That's a strong signal about where deep review pays off most. A candidate who is razor-sharp on Newborn content (10%) but shaky on Intrapartum management (21%) is statistically more exposed than the reverse scenario.
Antepartum (21%)
Covers prenatal assessment, risk screening, common complications, and decision-making across the full course of pregnancy.
- Master risk-factor identification and referral thresholds
- Know standard prenatal testing schedules and interpretation
Intrapartum (21%)
Covers labor management, fetal monitoring interpretation, and intrapartum complications requiring rapid clinical judgment.
- Practice fetal heart rate pattern recognition under time pressure
- Review labor progress assessment and when to escalate care
Well Woman/Gyn (19%)
Covers gynecologic and well-woman care outside pregnancy, including screening, contraception, and common gynecologic conditions.
- Know contraceptive method eligibility and counseling points
- Review preventive screening intervals and abnormal-finding follow-up
For a full walkthrough of every domain - including Postpartum, Newborn, and Women's Health/Primary Care - see the CM Exam Domains 2026: Complete Guide to All 6 Content Areas. Understanding the weighting isn't just academic; it should directly shape how many hours you allocate to each topic during review.
What the Pass Rate Data Tells You
AMCB's official 2025 combined CNM/CM pass rates were 74.5% for first-time candidates, 55.5% for repeat candidates, and 69.8% overall. Because CM and CNM candidates sit for the same national certification exam, these figures reflect the combined pool rather than a CM-only breakout.
The gap between first-time and repeat pass rates is worth sitting with. It suggests that whatever caused a candidate to fall short of 75 the first time often persists into the retake unless preparation genuinely changes - not just "studying more of the same material," but identifying and closing specific domain gaps. A deeper look at what these numbers mean for your own odds is available in CM Pass Rate 2026: What the Data Shows.
If You Don't Pass: Retake Rules and Costs
Falling short of the passing score of 75 doesn't end your path to certification, but it does trigger specific rules you need to plan around:
- Four attempts total within 24 months of completing your midwifery program.
- First retake: requires a 30-day waiting period after your previous attempt.
- Subsequent retakes: require a 90-day waiting period.
- Retake fee: $350 per attempt, compared to $425 for your initial exam.
The 24-month window is the part candidates most often underestimate. If you space out attempts with long gaps for "more preparation," you can burn through the calendar limit before using all four attempts. A tighter, more deliberate retake plan - using your score report to target specific domain weaknesses rather than re-reading everything - tends to serve candidates better than an open-ended restart.
All of the eligibility mechanics that lead up to test day - program accreditation requirements, program-director verification, and the safe beginning-practitioner attestation - are detailed in CM Requirements 2026: Eligibility, Prerequisites & How to Qualify. If you're also trying to nail down when testing windows open and how registration deadlines line up with your program completion date, check CM Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Scheduling Your Prep Around the Passing Score
Because the passing score is a composite across six unevenly weighted domains, the most efficient prep schedules allocate time proportionally - with extra room for domains you personally find weak, regardless of their weight. A simple way to structure the final stretch before your exam:
Antepartum & Intrapartum
- Drill risk-factor recognition and fetal monitoring interpretation
- Take timed practice sets focused only on these two domains
Well Woman/Gyn & Postpartum
- Review screening intervals, contraception counseling, and postpartum complication management
- Mix questions from both domains to simulate exam-day switching
Women's Health/Primary Care & Newborn
- Cover the two smallest-weighted domains without skipping them entirely
- Take a full-length, timed 175-question practice exam
Weak-Area Review
- Revisit only the domains where practice-test data shows the lowest accuracy
- Rehearse pacing so no single question eats more than 90 seconds
Notice that this schedule front-loads Antepartum and Intrapartum precisely because they're tied at 21% each - the two heaviest domains deserve the first and freshest review blocks, not leftover time at the end. If you want a printable, condensed version of the highest-yield facts across all six domains, the CM Cheat Sheet 2026: One-Page Review of Must-Know Facts is built for exactly this kind of last-mile review. And running full-length timed practice exams on our practice test platform is one of the most direct ways to simulate the real 175-question, four-hour format before test day.
Key Takeaway
Allocate study time roughly in proportion to domain weight, but never skip a domain entirely - even Newborn at 10% can be the difference between a 74 and a 75.
Why the Passing Score Matters Beyond the Exam Room
Passing at 75 or above isn't just a gate to a credential - it's the entry point into a specific scope of practice recognized by employers hiring midwives in outpatient clinics, birth centers, and hospital-affiliated practices. If you're weighing whether the time and cost of preparing for this exam is worth it relative to career outcomes, it helps to look at both sides: what certified midwives are typically hired to do, covered in CM Jobs, and what the credential tends to mean for compensation, discussed in CM Salary Guide 2026: Complete Earnings Analysis.
For candidates still deciding whether to commit to the full certification path - including renewal obligations like the three maintenance modules, 20 approved contact hours, and annual fees required to keep the credential current through the fifth year - it's worth reading Is the CM Certification Worth It? Complete ROI Analysis 2026 before you register with PSI and pay the $425 initial fee.
If terminology around the credential itself is still unclear - what the letters stand for, how CM differs from related titles, or what the certification actually authorizes - the foundational pieces on What Is CM?, CM Meaning, and What Does CM Stand For? are good starting points before you dive into passing-score mechanics.
Frequently Asked Questions
There's no fixed raw-to-scaled conversion you can rely on, since AMCB's 0-100 scaled-score system adjusts for item difficulty across different test forms. Focus on mastering content across all six domains rather than trying to calculate a specific number of correct answers.
No. The 175-question exam includes scattered, unidentified pretest items that do not count toward your scaled score. However, since you cannot tell which questions are pretest items during the exam, every question should be answered with full effort.
Your first retake requires a 30-day waiting period after your previous attempt. Any retakes after that require a 90-day wait. You have up to four total attempts within 24 months of completing your midwifery program.
Yes. Official results are issued at the PSI testing center immediately after you complete the four-hour computer-based exam, so you'll know whether you passed before you leave.
Yes. The CM and CNM credentials are awarded through the same national certification examination administered by AMCB, and the passing score of 75 on the 0-100 scaled-score system applies to both pathways equally.