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[quote=Anonymous][quote=Anonymous]The top 10% of the class at Deal will always be larger than the top 10% of the class at Hardy. Those numbers alone tell you nothing about the general quality of the student body, only its size.

I'd like to know more about the modal MacArthur student/where the quartiles are. Obviously there will be a few kids at the top, and thanks to that one troll mom, we are regularly reminded that there are kids who fight. Neither of these endpoints tells me much about what a basic, middle of the road kid would experience.[/quote]

I’m the PP you are responding to.  Of course in absolute numbers, Deal will have more high performing students because Deal is bigger.  But I’m not talking top 10% in terms of absolute numbers.  I’m talking total percentages which are comparable.  Deal has significantly higher total percentages of high performing kids.

From the most recent data, for example, Deal had 19% of their kids above grade level in math.  Hardy only had 5%.  That’s a huge difference by 4 fold regardless of the absolute numbers.

Now if you convert these percentages to absolute numbers, for Deal that’s 296 students spread over 3 years.  For Hardy that is 31 students spread among 3 years.  So even if all the high performing math kids from Hardy go to MA (which all won’t), that’s 10 kids going into 9th at MA.  It won’t make a dent in the school numbers.

Bottom line, JR has a good cohort of high performing kids because of Deal, not Hardy.  The high performing kids from Hardy benefitted from this.  Now that there is separate tracks to high school, Deal won’t suffer at all from losing the potential 10 kids.  But Hardy will a lot from losing the 100 kids that contributed to this high performing cohort.

Just because more Hardy families might go to MA won’t turn the numbers around on MA for years because the starting deficit is so huge with so many kids below grade level.  You can’t dilute that by adding such a small amount each year.[/quote]

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