Ranked by testers/enrollment:
Naz
GT
LA
SP
SL
ND
Marist
MC
SR
PC
JC
BR
Interesting metric. Another one would be testers/capacity.
All these numbers being thrown around here are next to meaningless without additional context.
What really matter are the trendline (losing, gaining or maintaining) and whatever each school's
historical yield is relative to testers who convert into freshmen matriculations.
I recently saw a statistic that said that private grade school graduates comprise about 30% of the total enrollment at the CPS academically selective Walter Payton College Prep and 20% at Northside College Prep.
How many of those kids who tested at DePaul Prep did so as their Plan B if they don't get admitted to Payton or Northside? How many DLS test takers are also applying to enroll at Whitney Young or Jones College Prep? Of those who tested at Christ the King, how many really want to attend Young? This dynamic of using Catholic schools as a Plan B holds true for all of the city Catholic high schools (even Ignatius) and a bunch of suburban Catholic high schools (Loyola, Regina, Notre Dame, Guerin, Laurence, Peace, Fenwick,Trinity, etc.) that draw well from the city.
And then there's always money. How many of those kids who tested at MC and Rita, for example, need
financial aid in order to attend, and what happens for those who aren't awarded enough?
What about a kid who tested at Guerin Prep because it was convenient to do so on that particular Saturday, but he intends to transfer those test scores to Pat's? How many kids who tested at Marist or PC get convinced by friends to join them at Sandburg or LWE? Or, what about the kid who tests at Ignatius, doesn't get accepted, and asks Ignatius to transfer his test scores to Cristo Rey? What about the parents who win the battle to have their kid test at Marian Catholic, but the kid ultimately wins the war and goes to H-F like he always wanted to do?
That kind of stuff happens more often than you might think.
Gross testing numbers are becoming less and less reliable as a means of determining incoming freshmen enrollment. It's all about YIELD. You could even have a situation whereby a school is maintaining or slowly growing their January test numbers, but if their yield is going south, so will their freshmen enrollment.