As it appears you are more familiar with the case than I am, it would be helpful if you could point out what those errors are?
As best I can tell 'Judge Wood ruled that an older state-certification test, which was intended to measure teachers’ knowledge of the liberal arts and science, was racially discriminatory.'
Elsewhere I'm seeing "The court found that Black and Latino teachers clearly passed these tests at lower rates than white teachers. In order to prove that this wasn't illegal, the defendants had to show that the test actually demonstrated what it promised: that teachers who did well on the test would do better in their jobs."
It seems to me that the error was using the wrong test and it was the wrong test because it had disparate impact. What it does not appear to be is a case that is not about disparate impact because it instead had errors.
That kind of reasoning seems amazing to me. Some people didn't perform as well on the test as the judge wanted, so the test is wrong. It's even racist!
If men get into traffic accidents more often than women, then clearly there is something wrong with the cars and car manufacturers should be sued for their discrimination?
In the Eastern bloc, agriculture was immensely held back because everybody had to follow the ideology and adjust their science and methods to "I god damned said so!" of the rulers. Seems like America is curious about following the same path.
Ahh, I'm looking at a much more recent case in New Jersey, not this one from 10 years ago. The test you're talking about isn't an IQ test; it's a heavily and obviously culturally-loaded literacy test. The whole point of actual IQ tests is to isolate intellectual aptitude from cultural literacy.
(I'm writing as if I think real IQ tests are a good idea, and they are not --- in fact, that's my whole point: there's a mythology that IQ tests aren't used because they're illegal, but they are not that; what they are is ineffective.)
The efficacy of IQ tests are a separate argument and the general abandonment of IQ tests by corporations as a demonstration of their inefficacy would be more substantive if such tests were not in effect made illegal at the same time. I.e. if IQ testing conferred no possible legal liability then the spontaneous abandonment of their use might be evidence of their ineffectiveness.
As best I can tell 'Judge Wood ruled that an older state-certification test, which was intended to measure teachers’ knowledge of the liberal arts and science, was racially discriminatory.'
Elsewhere I'm seeing "The court found that Black and Latino teachers clearly passed these tests at lower rates than white teachers. In order to prove that this wasn't illegal, the defendants had to show that the test actually demonstrated what it promised: that teachers who did well on the test would do better in their jobs."
It seems to me that the error was using the wrong test and it was the wrong test because it had disparate impact. What it does not appear to be is a case that is not about disparate impact because it instead had errors.