<p>GlassBox,
This is how I read the article:</p>
<p>(1) Ivies, but particularly H, have always been concerned about the stature & visibility of their alums, because of the reflection on H & the maintenance of their reputation as a U. Thus, historically they have selected not just for an applicant's qualities as a student, but for qualities such as "leadership," drive, & persistence within a competitive environment: those qualities H alums who were successful in careers, post-graduation, have been shown to have possessed. (Thus, those qualities of incoming freshmen became predictors that H was invested in.)</p>
<p>(2) Previously (1st half 20th century), the above qualities manifested themselves in athleticism, which was the primary non-academic supplemental litmus test for H worthiness. Increasingly, throughout the latter part of the 20th century & into the 21st, students accomplished in various COMPETITIVE e.c.'s have similarly proved to have many of the qualities previously associated (only) with athletes. Thus, an applicant highly accomplished in one or more competitive e.c.'s, whether or not that applicant is also an athlete, may be considered as having traits similar to what H has always sought in its athletes (including h.s. athletes who do not play on H teams).</p>
<p>(3) H is particularly concerned with leadership, because they particularly value their visibility/name & prefer to admit students who are likely to be visible in their careers, be successful, continue to be driven as they were in college & before college.</p>
<p>(4) The other Ivies play "follow the leader" with regard to many of the above assumptions.</p>
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<p>I don't remember if the following was noted in the article, but I will say that admitted students have said that, overall, extroverts do much better (are happier) at H than introverts. In that vein, it is my understanding that H strongly prefers to admit extroverts over introverts. My introverted D qualified for several Ivies & was accepted to several. She was not interested in applying to H; but if she had applied, I would have been surprised had she been accepted.</p>