I doubt most bright Hispanic or Black kids would sit through this, either. The black kid would be even more active while the Hispanic kid would be suspect of the tester the moment he walked into the room.
I don't understand this statement, can you explain? (it jumped off the page as being very prejudicial, but your posts don't generally reflect that so I'm sure I missed something somewhere)
By Hispanic I mean kids raised in neighborhoods in Texas where Spanish is the primary language, most of the parents are first generation Mexican immigrants, and the economy is based primarily on cash. (Cash means you never paid taxes...)
If you live in fear of the authorities in Mexico and then of the authorities when you are in the USA, even though you are a citizen, it has an effect. Hence the suspicion in a lot of these kids.
Let's compare again. Ever been to an AME Church Service? What if you took a kid used to an AME Service and stuck them in a Methodist or Freewill Baptist service? He'd go to sleep. And many if not most of the latter congregations would be very nervous at an AME service.
There are real cultural differences between Ethnic groups. I use Capital E to denote someone RAISED in that CULTURE. It has little to do with skin color.
If kids are evaluated only through the lens of one culture rather than though a lens that reflects their culture, then it will exclude most of the kids who do not have fluency in the primary culture of the evaluator.
A kid not of the evaluator's culture will be giving some blank looks to many of the questions or they will misinterpret the social cues. Behavior commonplace in the kid's culture will be seen as disruptive or non-participatory in another.
There are a lot of stories on this board about kids with FSIQ > 130 who are dissed by some evaluator because they got too weird for the adult's blue blood. Add in some true cultural differences and see how bad it gets.