testing and overrepresentation of 99th percentiles here

[Anonymous]

Anonymous wrote:Two total different 99 percentiles here, ppl.
One is the NNAT, which sampled against nationwide data. 98 percentile nationwide NNAT is about 80 to 85 percentile in Fairfax county, so 99 percentile nationwide might very well be 90 to 95 percentile Fairfax county, which results in 650 to 1300 kids.
As for the new Fairfax CogAT, it's sampled against Faitfax kids only, so only 130 kids 99 percentile CogAT.
Look up in the threads, you can see amny claimed NNAT 99%, but not many 99% CogAT.

Very true. My DC's NNAT was 135 but that equals to 99th percentile nationwide age-adjusted. In Fairfax county, I have heard so so many kids who scored much higher than 135. Assume my kid's per performance is consistent, he got 97% for nonverbal in CogAT. So the 99th% nationwide=97th% fairfax local.

[Anonymous]

You can't make those assumptions (poster 16:37), my child scored 139 (99%) on NNAT, but only scored in the 52% on nonverbal in FFX Cogat this year.

[Anonymous]

Anonymous wrote:You can't make those assumptions (poster 16:37), my child scored 139 (99%) on NNAT, but only scored in the 52% on nonverbal in FFX Cogat this year.

I noticed that many parents have reported huge discrepancies between last year's NNAT scores and this year's CogAT results. Is this something that happened in previous years too?

[Anonymous]

Anonymous wrote:

Anonymous wrote:You can't make those assumptions (poster 16:37), my child scored 139 (99%) on NNAT, but only scored in the 52% on nonverbal in FFX Cogat this year.

I noticed that many parents have reported huge discrepancies between last year's NNAT scores and this year's CogAT results. Is this something that happened in previous years too?

Well, like other posters have said, there are roughly 120-ish kids per percentage point on the FAT test.

So let's say your kids was in the 98% on the NNAT (I am just throwing numbers out her, with no statistical basis) and got an 85% on the FAT test. That would mean that your kid was in roughly the top 1800 students district wide.

There are 141 elementary schools in the district. Scoring 85% on the FAT would mean that your kid is roughly one of the top 12-13 kids in your school. Since they pull out at least that number of kids or more for advanced enrichment, then a ranking of 85% would be nothing to get upset about, and is very well quite accurate. (In my kid's class alone they pull out 6 kids. There are 4 classes in his grade, so lets say there are 24 kids in the school getting pulled out That would mean an 85% would be in the top half of the top kids at our school).

That kind of discrepancy makes sense when you put it like that.

[Anonymous]

wah wah wah....

[Anonymous]

I think this is a hugely self-selecting sample; people come here to brag or fish for reassurance that their child is indeed a genius to boost their own self esteem. I also think there are a lot of liars and trolls.

[Anonymous]

What's new. Isn't this town full of liars and tax cheats. Unfortunately, by example, their poor children will follow.

[Anonymous]

"I think this is a hugely self-selecting sample; people come here to brag or fish for reassurance that their child is indeed a genius to boost their own self esteem. I also think there are a lot of liars and trolls."


I agree, test results have become skewed due to the poor performance of large population underachieving school districts. Many school districts graduate less than 50% of their students, yet these students are included in results making us feel better about our little genius'. I've never understood the obsession with test scores as they do not guarantee admission to he Ivy League nor to success in life. Most "successful people I know (and you too if you think about it) are products of good educational systems with strong parental support. My son is not in the top 1% but he is happy and attends our state university and does well in his studies. Best student on campus? Hardly, but well adjusted, happy and with a solid job offer upon graduation.

[Anonymous]

And the Fairfax Cogat -FAT this year was not age normed and so older kids who are bright got an advantage and the younger bright kids did not look as bright. So when you have a younger summer birthday kid admitted in AAP this year it shows the student scored high enough to off set young age and lack of age norming.

[Anonymous]

Ack! Please. Put them back in the Fairfax County AAP board. Please.

[Anonymous]

For IQ testing, the 99th percentile is huge, 135 all the way on up to EInstein.

[Anonymous]

Doesn't everyone score in 99% on SOLs nowadays due to 'teach to the test'? In homogenous SES schools this is the case. As a kid in FFx county everyone I knew scored in the 90s. SOLs are not IQ tests. If you come from an educated home, have high SES, no disabilities and go to a decent public school-- you are pretty much guaranteed to score that high. I think everyone in our Arl. elem school (a 10 rating school) was in the 90s.

[Anonymous]

This is an old thread that got bumped. Such conversations have moved to the AAP forum now. Kindly head that way if you've got an interest in that topic.

[Anonymous]

Anonymous wrote:

Anonymous wrote:Two total different 99 percentiles here, ppl.
One is the NNAT, which sampled against nationwide data. 98 percentile nationwide NNAT is about 80 to 85 percentile in Fairfax county, so 99 percentile nationwide might very well be 90 to 95 percentile Fairfax county, which results in 650 to 1300 kids.
As for the new Fairfax CogAT, it's sampled against Faitfax kids only, so only 130 kids 99 percentile CogAT.
Look up in the threads, you can see amny claimed NNAT 99%, but not many 99% CogAT.

Very true. My DC's NNAT was 135 but that equals to 99th percentile nationwide age-adjusted. In Fairfax county, I have heard so so many kids who scored much higher than 135. Assume my kid's per performance is consistent, he got 97% for nonverbal in CogAT. So the 99th% nationwide=97th% fairfax local.

How difficult it will be for these Fairfax County students when they compete with each other for the same regional spots in the best colleges.