How old are your kids? I can't imagine subjecting a young elementary kid (6-7 years old) to a 4-hour test. Christ--even the SATS weren't that long for me.
Expect burn out and medicocrity later in life....
Why would you be so worried about how he did? That is frickin weird. This is elementary school.
As a practical matter---in my Ffx county school the GT centered kids (and I have many friends that were in them) ended up worse off later in life. They can't cope and our so test-focused. Why put your kids in with a bunch of hothouse flowers that can't handle the real world and have annoying helicopter-tiger moms. I have also find a lot of the 'gifted' boys to be severley ill-behaved and the parents writing it off to his 'giftedness'. He's jsut bored

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No--my kid isn't old enough to be concerned with WISC so this isn't a disgruntled reject--it is just such a crack-head thing the competitiveness for little kids and it is ALL about the parents.
I chose Arlington because the process isn't as f-ed up and the parents are a minority that are into all of this sh*t.