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In doing so, he significantly--perhaps greatly--reduced his chances of getting into any of the three schools that are next in his order of preference.
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<p>I want to say that this is wrong, but instead I'll just say that it is extremely unlikely to be right.</p>
<p>First of all, it only make sense of ##2-4 are all EA, not ED, schools, or I guess if one of them is an ED school that allows simultaneous EA applications and the other two are EA schools that allow simultaneous ED applications, and the ED school is preferred to the EA schools.</p>
<p>Otherwise, if it was a choice between applying SCEA to Yale or Stanford and applying ED to one of three other schools, he could only have hurt his (hypothetical) better chances at one of the three other schools, not all of them.</p>
<p>I ##2-4 are all, or mostly EA schools, then you should be aware that there's no reason to believe there's a big advantage to applying EA at those schools. They all deny it, and one of the most selective of them -- Georgetown -- actually enforces it by limiting its EA acceptance rate to its projected overall acceptance rate. So even if he gave up the opportunity to apply EA at all three schools, he couldn't have reduced his chances of admission at any of them "greatly", or even possibly "significantly".</p>
<p>Finally, if he is really qualified for Stanford or Yale, he ought to be a pretty strong RD candidate at any of the EA schools in existence. If two of the three are MIT and Cal Tech -- well, they aren't much less selective than Yale or Stanford, but applying early to them would not have made things much better. And if he doesn't look like a strong candidate at Chicago, Georgetown, Notre Dame, BC . . . then applying EA (or ED to any similarly selective school) was not likely to give him any kind of advantage.</p>
<p>I'm quibbling over language, but doing it to make a point: Don't overvalue the advantages OR disadvantages of the early process. Over a population of tens of thousands of kids, it probably makes a meaningful difference one way or the other in the outcome for a few dozen of them. Everyone else winds up going where they were meant to go, or someplace indistinguishable from it.</p>