[Regardless of whether or not you believe that IQ varies among different ethnic groups, it's irrefutable that there's always going to be a top 2% or 3% in any group. Kids in this group need their own instruction compared to the group they're in, regardless of the scores of some other group on the far side of a gigantic city.
This is true, but I don't know what it has to do with this particular issue.
You still should't be tossing the people with IQs (or whatever intelligence-learning thingy you use) of 120 into the same place as people with IQs of 150.
It's dumb to deal with ethnicities and races because they don't really exist as bright lines.
We need to be looking to individual families.
Again, Apple. Fall. Tree.
When I'm dealing with families with a solid history of mental retardation, I'm much more likely to take a case of their brother, cousin, etc., because I know that there's a good chance that I will get mental retardation out of *that* case without too much effort.
Not because of their race, but because of their family tree.
(And if not that, I can at least score some really low adaptive function. Winning! $$$$)