Here is an exerpt pertaining to they way Ivy league adcoms view the MCAT and GPA.
"We see many applicants with excellent grades and references but low test scores. Our perception is a diligent, hard-working student who is probably performing at 100% capacity. These students are probably not brilliant or insightful, just diligent.
MCAT scores are the true equalizer in the admissions process. They back up all of the other evidence in your folder and either support or contradict it. They show your mastery of the material and are an indicator of the strength of your university and professors. Poor performance on them shows you are not competitive with other applicants who aced them.
We often hear complaints such as "I don't do well under pressure" or "I panic taking timed tests". We are not sympathetic to this. A medical school curriculum requires four years of timed-testing and high competition: students using a "poor tester" excuse are simply not competitive. The best way to become proficient at test-taking is to practice, practice, practice, Know the material well before the test. Learn the test instructions by heart. Take several practice tests under controlled test conditions. Familiarity will breed comfort with the process and increase your likelihood for a good score.
Bottom line:
1) MCAT scores are more important that your class ranking or GPA.
2) MCAT scores are more important than faculty recommendations.
This is true for all of the Ivy schools because they all use an Academic Index (AI)when screening applicants. There are only three special cases where the "normal rules" don't apply.
1) Legacies
2) VIP
3) URM recruiting
As for the calculation of AI, the majority of the formula is derived from your MCAT scores. The remaining variables are your SGPA and your CGPA. I don't want to sound mean, but please don't ask me what the AI formula is because I won't tell you. All I can say is that a perfect AI = 23 and competitive applicants usually have AI's ranging from 16 - 23.
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Personally, I don't think it's fair that the MCAT is weighted so heavily at these schools .... but what can you do?