From 2026, the Australian Medical Council introduced a small increase to the underlying pass standard for the MCQ Examination. Candidate scores continue to be reported on the same 0 to 500 scale, and the pass mark is still described as 250. The content, structure and format of the exam have not changed. What has changed is the underlying ability threshold a candidate now needs to reach that reported score of 250.
What actually changed, and what did not
It helps to separate three things that are easy to conflate. The underlying ability standard is the level of clinical competence the AMC now expects, benchmarked periodically against graduating Australian medical students. The reported scaled score is the 0 to 500 figure candidates receive, with 250 remaining the pass mark on that scale. And a raw percentage in a commercial question bank is neither of these; it is simply how many questions a candidate answered correctly in that specific product, under conditions that rarely match the real exam.
The AMC has been explicit that this is a routine benchmarking adjustment rather than a difficulty increase, and that candidates are not required to answer a greater percentage of questions correctly. That last point matters, because it directly contradicts a common misconception: that passing means hitting some fixed percentage of the 150 questions in the paper.
Why a fixed percentage was never the right target
The AMC CAT MCQ exam is computer-adaptive. The system selects each subsequent question based on the candidate's performance so far, meaning the exam calibrates to ability rather than presenting a fixed, equally-weighted paper to every candidate. Two candidates can answer the same number of questions correctly and still receive different scaled scores, because the difficulty of the questions they were given differed. A percentage figure from a static commercial bank, where every question carries equal weight and difficulty does not adapt, was never a reliable proxy for this kind of score, and the 2026 change makes that gap slightly more consequential, not less.
What should actually change in preparation
The practical response to a marginally higher ability threshold is not to panic or to abandon a working preparation plan. It is to tighten a few specific habits. Consistency across the full blueprint matters more than being excellent in a handful of favourite topics, since computer-adaptive scoring rewards a stable ability estimate across the curriculum rather than spikes in familiar areas. Regular exposure to genuinely unfamiliar questions, not repeated cycles through the same bank, is what builds a reliable ability estimate. And borderline scores in a commercial question bank should be treated with real caution; a candidate hovering near a bank's advertised "pass line" under this new standard has less margin for error than the same score would have implied under the previous one.
Building a broader readiness picture with iatroX
A single mode is rarely enough to prepare reliably for an adaptive exam like this. Standard Mode is useful early and throughout preparation for broad sampling across the AMC blueprint, so gaps do not go unnoticed simply because a topic feels comfortable. Adaptive Mode becomes more valuable once genuine, persistent weaknesses have emerged from that broader sampling, concentrating practice where it will move the ability estimate most. Mock Mode, used closer to the exam date, conditions candidates to the timed, sequential, single-pass format of the real assessment, which is a meaningfully different skill from working through questions at leisure.
Frequently asked questions
Is the AMC MCQ exam now harder? Not in content or format. The underlying ability threshold required to reach the reported pass mark of 250 has been raised slightly, which candidates experience as a marginally higher bar rather than a different exam.
Does 250 still represent a pass? Yes. The 0 to 500 reporting scale and the 250 pass mark are unchanged; only the ability required to reach that reported figure has shifted.
Are previous results affected? No. Candidates who sat the exam in 2025 or earlier were assessed against the standard in place at that time, and results already issued are not retrospectively changed.