“Weedout” courses that all premeds must take such as chemistry that have a curve where only a certain percentage can get A’s
But that isn't the only way. The next hurdle is the committee letter. Not all schools have these, large publics do not, but if your college offers one then if you don't submit it then med schools assume you withheld it due to a serious problem. This gives these colleges the ability to control who can apply to med school since they decide who gets positive letters of rec. Let me write the letters of rec and I can get any college in the country a 80% admit rate. All the info you need is in https://www.aamc.org/download/321508/data/factstablea23.pdf As one college often recommended on this forum ells its students [quote] The Committee's level of recommendation and the tone and content of the letter to be written is discussed with applicants as openly as possible.[/quote]
And surprise! Of those that end up applying, 81% get in.