Your MCAT score in each section is based on the numbers of questions that you answered correctly (note: there is no penalty for wrong answers). Your raw scores from each of the 4 sections of the exam will then be converted to scaled scores which are the only scores that interest medical school admissions committees.
Considering that each section of the exam has different sets of questions and level of difficulty, a student's performance on the MCAT is more likely to be accurately assessed by converting raw scores to scaled scores. The scaled score is reported on a 15-point scale.
There is no simplistic way to convert a percentage to a scaled score. It is a complex calculation that is dependent on the cohort and cannot be replicated with precision for any random practice exam. For example, a 50% raw score (i.e. the percent of correct answers) in a section does NOT represent 125 (a midpoint MCAT scaled score). Consider the table below.
Example of approximate percent correct MCAT score conversion for the Official AAMC MCAT Practice Exam (Scored) 1
||Percent Correct Raw Score (approx.)
||MCAT Scaled Score with Range (/132)
|1. Chemical and Physical Foundations of Biological Systems
|2. Critical Analysis and Reasoning Skills ('MCAT CARS')
|3. Biological and Biochemical Foundations of Living Systems
|4. Psychological, Social, and Biological Foundations of Behavior
Note: A score of 80% correct for each of the 4 exam subsections translates to an MCAT scaled score of 127, which further underlines the fact that the relationship between percent correct and scaled scores is not straightforward and the changes are not consistent across exam sections (there is a correlation, but they are not proportional). Again, the numbers above only apply to this one exam and cannot be blindly applied to other practice materials. As an example, Gold Standard practice exams required thousands of student submissions to develop an exam-specific scale score which continues to be adjusted as segments of the cohort's exam preparation improves over the years.