<p>What I have read is that once one applies to more than about 8 schools, one's success of admission drops. Why? Probably students who apply to a lot of schools don't have the time to carefully research the schools or to carefully fill out their applications.</p>
<p>They probably end up not tailoring their essays and short answers to the schools they are applying to. In addition, they may make careless errors putting the wrong college's name in their responses.</p>
<p>In interviews, too, they are not likely to impress because they'd sound more like, "I am trophy hunting," than "I am interested in the type of education that your particular institution offers."</p>
<p>I see students lots of time on CC posting about applying to 15 or more schools, and what has stood out about those posts is that the students seem to view college admissions as lotteries and to assume that the more tickets you buy, the higher your chances of acceptance. That simply isn't true.</p>
<p>If one has the stats for admission to a top school, IMO the more time and effort one spends finding schools that are good matches for one's aspirations and the more effort that one spends tailoring one's application to the schools, the better one's odds are of getting acceptances. "Tailoring" also means having recommendations and supplemental materials that highlight things that would impress that particular college.</p>
<p>Teachers may be willing to tailor one or two recommendations instead of providing the same letter to be used to all of the schools that an individual student is applying to. However, they aren't likely to do this for 15 letters for one student.</p>
<p>In addition, GCs may be willing to make the extra effort to reach out to adcoms to help a student get into the student's top school. GCs, aren't going to, however, do this 15 times for one student.</p>
<p>As for ED, the big risk is that students' perspectives change a great deal from October until April, and a student who successfully applies ED to up their odds of getting into a top college may find themselves unhappy in April with the choice they are stuck with.</p>