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[quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous]

The largest demographic common to both Wotton and Blair happens to be so it's the best means by which we can isolate for demographic differences between these sets.[/quote]

You can make whatever special comparisons as you want. What makes sense when comparing student strength is the average scores, not scores of a certain ethnic group.

Or, are you suggesting that people's kids should only stay with white kids so comparing how white kids do in these two schools is the way to do it?

Without the magnet program, Blair is nothing near any of the W's (or TPMS vs RFMS or CJMS), that is a known fact, I don't see why some people just keep ignoring that.[/quote]
If it makes you feel better  :lol: [/quote]

It is a fact. Whether it makes me feel better or make some people feel bad, does not change that.

When we talk about how great Blair or TPMS are, we are really talking about their magnet programs. Some people keep ignoring that. Maybe thinking the entire school (Blair or TP) is better makes them feel better. Well, that is their choice but it is not a fact.
[/quote]

Actually, that's not true. Let’s eliminate the out of boundary magnet scores from that cohort's SAT average at Blair to see how the general population at these schools stack up by minimizing the impact of demographic differences. This seems sensible given that Blair is the most diverse school in the state whereas Wooton is one of the segregated schools.

1526 Blair Magnet SAT average public knowledge
1326 Blair SAT average score for common cohort from the report
250 total number of kids from the cohort that took SAT according to report
32 number of OOB magnet kids from the cohort that took the SAT (40% of OOB 80 students belong to this cohort = 32)
where “x” is Blair’s in boundary SAT average for largest common cohort

(250 - 32) / 250 = 87% non-magnet cohort total
13% magnet % of cohort total

0.87x + 0.13 * 1526 = 1326
0.87x + 198.38 = 1326
0.87x = 1326 – 198
x = (1326 – 198) / 0.87 = 1296 Blair SAT average without magnet

[b]Blair's 1296 without the magnet is still higher than Wooton[/b] :)[/quote]

Without even looking at the validity of your data, I can tell you there is something fundamentally wrong with this: 13% is - according to you - percentage of OOB magnet kids, but you are multiplying it with SAT average of ALL magnet kids.

In addtion, according to table A6: The mean total score for Blair - the WHOLE cohort - is 1142. The corresponding figure for Wootton is 1230. And you are attempting to prove that if we *take out* the magnet kids, the Blair mean total score will shoot up from 1142 ?!  You are essentially trying to prove that the magnet students of Blair are pulling down the average!!

And to achieve the impossible, you are peddling gish gallop and you know it. (1326 is not Blair average for common cohort - it is only for whites (table A8) - magnet or non magnet; total number of kids that took SAT is 433 (tables A5, A6, A7 (add the "N took" numbers for the different categories), A9 (add "N took" for male and female) are consistent and show 433); you are trying to prove the strength of the non-magnet part of Blair by including the in-boundary magnet kids in the non-magnet part, etc.)

I do not know if Wootton is better than Blair and I do not care, since I do not live in that cluster - but I can say that your calculations do nothing to prove Blair's non magnet cohort has better SAT scores than Wootton.
[/quote]

To make it even more obvious: According to you, the SAT average is 1526 for the Blair magnet. According to table A6, the SAT average for the whole cohort is 1142. I will let you and others decide if the SAT average for the non magnet cohort will be more or less than 1142.[/quote]

The PP comparison was between white students, the largest demographic common to Wooton and Blair, to isolate for socio-economic differences for which race is a proxy. The report clearly states these averages for both schools.

[b]Blair 1326 
Wooton 1262 [/b]

https://montgomeryschoolsmd.org/departments/shared...c_Perf%20Class%20of%202017.pdf[/quote]

This whole discussion started off with some posters pointing out that since there is no guarantee that all of OP's kids will get into the magnets, OP might want to compare non magnet cohort of the magnets with other schools. The problem with the numbers you cite is that the average of 1326 for Blair includes white students IN THE MAGNET.

(Going off tangent, while comparing the general population, I think it is problematic to act as though other races do not exist, especially when white students constitute only a minority (~25%?) of the student population. But that is a whole another discussion.)[/quote]

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