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Exam Overview
The MCAT is a standardized, computer-based examination developed and administered by the Association of American Medical Colleges (AAMC). Nearly all medical schools in the United States and many in Canada require it. The exam assesses your knowledge of natural, behavioral, and social science concepts, your scientific reasoning and problem- solving skills, and your ability to analyze and reason through written material.
Exam Structure and Timing
The exam has four scored sections, always given in the order below. The three science sections contain 10 passage- based sets of 4–6 questions each plus 15 discrete (independent) questions. CARS contains 9 passages with 5–7 questions each. The science sections in this guide appear in content order (biology first); on test day, Chemical and Physical Foundations comes first.
Mcatsectionsintest-Dayorder
| Order | Section | Questions | Time | ReviewedinThisGuide |
|---|---|---|---|---|
| 1 | ChemicalandPhysicalFoundationsofBiologicalSystems | 59 | 95min | Section2 |
| (Chem/Phys) | ||||
| 2 | CriticalAnalysisandReasoningSkills(CARS) | 53 | 90min | Section4 |
| 3 | BiologicalandBiochemicalFoundationsofLiving | 59 | 95min | Section1 |
| Systems(Bio/Biochem) | ||||
| 4 | Psychological Social andBiologicalFoundationsof , , | 59 | 95min | Section3 |
| Behavior(Psych/Soc) |
Test-Daytimeline
➜
➜
➜
Cars
95 min
90 min · then 30-min break
95 min
95 min
Optional 10-minute breaks follow the first and third sections, and an optional 30-minute mid-exam break follows CARS. With check-in, tutorial, breaks, and the closing survey, the total seated time is about 7 hours 30 minutes.
What Each Section Covers
The science sections draw on introductory college courses in biology, biochemistry, general and organic chemistry, physics, psychology, and sociology. The approximate share of each discipline is shown below.
| Section | DisciplinesTested |
|---|---|
| Chem/Phys | Generalchemistry30%·Biochemistry25%·Physics25%·Organicchemistry15%·Introductory |
| biology5% | |
| CARS | Humanities50%·Socialsciences50%(nosciencecontentknowledgerequired) |
| Bio/Biochem | Introductorybiology65%·Biochemistry25%·Generalchemistry5%·Organicchemistry5% |
| Psych/Soc | Introductorypsychology65%·Introductorysociology30%·Introductorybiology5% |
In the three science sections, questions also test four Scientific Inquiry and Reasoning Skills: knowledge of scientific concepts and principles (about 35% of questions), scientific reasoning and problem-solving (about 45%), reasoning about the design and execution of research (about 10%), and data-based and statistical reasoning (about 10%).
Foundations of Comprehension
30%
What the passage says and implies
Reasoning Within the Text
30%
How the argument is built and supported
Reasoning Beyond the Text
40%
Applying or testing ideas with new information
Scoring



Raw scores are converted to the scaled scores above through a process called equating, which adjusts for small differences in difficulty between test forms. Your score report also shows a percentile rank for each section and for the total, and scores are released about 30 to 35 days after the exam.
Exam at a Glance
| ExamAspect | Details |
|---|---|
| Administeredby | AssociationofAmericanMedicalColleges(AAMC) atPearsonVUEtestingcenters , |
| Format | Computer-based; 230 multiple-choice questions mostly passage-based , |
| Time | 6hours15minutesoftesting;about7hours30minutesseated |
| Scoring | 118–132persection;472–528total;nopenaltyforwronganswers |
| ExamAspect | Details |
|---|---|
| Registrationfee | US$360standardregistration;US$145throughtheAAMCFeeAssistanceProgram andtesting , |
| outsidetheUS andCanadaaddsaninternationalfee . . | |
| Testinglimits | Up to 3 attempts in a single testing year 4 in two consecutive years and 7 in a lifetime; no-shows and , , |
| voidedexamscountasattempts | |
| Testdates | OfferedonmanydatesfromJanuarythroughSeptember |
Why the MCAT Matters
Admissions committees use MCAT scores, together with your GPA, experiences, and personal qualities, to judge your readiness for the demands of medical school. A strong score can make your application stand out in a competitive pool. Just as important, the exam measures the analytical and reasoning skills you will use throughout medical training and practice, so preparing well builds a foundation that lasts beyond test day.
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