MCAT Analysis

Introduction

Have you ever wondered how your AAMC-FL scores might compare to the real MCAT? Look no further MDbuddy has your back. By analysing over 1000 students from Reddit's community MCAT score stats, we are able to predict where our scores might fall on exam day. MDbuddy does its calculations in real-time, meaning that it updates it graphs whenever a new student is added to the database!


Methodology

Datapoints from 2018-2019 are taken from r/MCAT. The differences in score between the real exam and each AAMC full length exam is calculated. The score differences are shown as a distribution below. The mean and relevant statistics are then calculated and displayed in the tables below.


How to interpret the graphs

  • Curves with the mean to the left of the y-axis indicate a WORSE score on the real exam compared to the aamc-fl.
  • Curves with the mean to the right of the y-axis indicate a BETTER score on the real exam compared to the aamc-fl.
  • Curves with the mean on the y-axis indicate the SAME score on the real exam compared to the aamc-fl.
AAMC FL#1 Analysis

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Test Day vs AAMC FL#1: Score Difference. n = 901.
Category Mean (x̅) Median Standard deviation (σ)
Chem/Phys 0.89 1.0 1.68
Cars 0.47 0.0 1.96
Bio/Biochem 0.68 1.0 1.73
Psych/Sociol 1.97 2.0 1.81
Total 4.01 4.0 4.01
AAMC FL#2 Analysis
Test Day vs AAMC FL#2: Score Difference. n = 884.
Category Mean (x̅) Median Standard deviation (σ)
Chem/Phys 0.44 0.0 1.61
Cars -0.1 0.0 1.89
Bio/Biochem 0.38 0.0 1.6
Psych/Sociol 1.95 2.0 1.79
Total 2.61 3.0 3.66
AAMC FL#3 Analysis
Test Day vs AAMC FL#3: Score Difference. n = 855.
Category Mean (x̅) Median Standard deviation (σ)
Chem/Phys 0.13 0.0 1.52
Cars 0.05 0.0 1.9
Bio/Biochem -0.05 0.0 1.7
Psych/Sociol 0.82 1.0 1.97
Total 0.95 1.0 3.76
Closing remarks

Caveats

  • r/MCAT is not a true reflective population of MCAT test takers.
  • People with higher scores tend to participate in the community database, moreso than people with lower scores.
  • The relationship between relative order of completion of each AAMC-FL and change in score has not been explored, and could possible be a confounder.