<p>intparent - it is not hard to get a list of people admitted at competing schools. I was able to see a large percentage of EA students at various schools on the school facebook pages. </p>
<p>Based on the low overlap betweeen HYPS schools from early to regular, one has to assume they share lists at some level. It is known that SCEA and ED schools (or is it only ED?) pass their lists around to notify others. </p>
<p>One only has to ask the high school counselor where else the kid had applied/admitted before they admit the kid if they are not sure. Yield is important and they want to make sure there is a high chance.</p>