True, although there would also be no reason to assume that there wasn’t any connection between race and intelligence/achievement. A null hypothesis is a very passive/negative construction that doesn’t stick its neck out in any direction.
[QUOTE=MaxTheVool]
But we do not live in a vacuum. And in the USA today, it is indisputably true that there is a strong statistical link between race and academic achievement.
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Also true, and nobody AFAICT is disputing it.
[QUOTE=MaxTheVool]
What I think is an intellectually unsupportable position is “well, we see this strong link, but there are reasons why it could be due to the environment, therefore we assume is absolutely positively due to environmental factors, and the burden of proof is on anyone who wants to claim otherwise”.
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But nobody’s saying that from a scientific viewpoint we should assume it “is absolutely positively due to environmental factors”.
All we’re saying is that if anybody wants to claim that this phenomenon or some part of it is due to genetic factors, they have to show scientifically that there’s statistically significant evidence for their claim. The null hypothesis for the required statistical study would be “Nope, this purported genetic factor probably has nothing to do with the observed phenomenon, and if you say different, prove it”.
Note that exactly the same response would apply if anybody wants to claim scientifically that this phenomenon or some part of it is due to some particular environmental factor.
That is, if somebody comes along saying, for instance, “Racial differences in measured intelligence are largely due to different lead-exposure levels in childhood”, that is a claim that requires scientific validation, just like claims about alleged genetic factors. The null hypothesis for the required statistical study would be “Nope, lead-exposure levels probably have nothing to do with the observed phenomenon, and if you say different, prove it”.
[QUOTE=MaxTheVool]
That is, treating the “it’s all environmental” position as the default fallback position (which I was referring to as the null hypothesis, likely incorrectly), just kind of because it would be pleasant and happy.
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But AFAICT, nobody’s trying to claim that such a “default fallback position” is in any way a scientific claim.
There’s nothing scientifically wrong with having the personal opinion that “it’s all environmental”, and likewise there’s nothing scientifically wrong with having the personal opinion that “it’s all genetic” or “it’s probably some of each”.
I would argue that when it comes to social policy, it’s probably best to operate on the default assumption that “it’s all environmental” unless and until scientific evidence shows otherwise, for the reasons you adduce and also because when it comes to social policy, environmental causes of inequality are the sort of thing we can do something about, while genetic causes aren’t.
But that is in no way equivalent to claiming that science is adopting or should adopt the default assumption “it’s all environmental”. Science has no truck with any “default assumptions” about phenomena that are not yet scientifically understood.
Whatever you happen to be claiming, science is, metaphorically speaking, from Missouri, and you have to show it. If there are in fact any people out there asserting that the scientific position is to assume that racial differences are caused exclusively by environmental factors and that claims about the influence of environmental factors don’t need to be scientifically substantiated, those people are wrong.