But that's probably nothing compared to the narrow band of tolerable science when it comes to questions of race or ethnicity. Anything that could be construed as people of some descent being "inferior" in any aspect is pretty risky to publish.
Apparently, the study ran for decades, but the results were never published... it's unclear why but it seems plausible to me that, aside from the ethical concerns, the study came to uncomfortable conclusions about the polemic "nature VS nurture" debate. Initially, they show how all siblings in the study, despite the intentionally very different environments, all came to like and do the exact same things... but later in the documentary, it also shows there were differences enough that the similarities were only superficial (in what I can't see as anything other than trying to appease the "nurture" crowd - as there seems to be no justification for that, as much as I tried to find it in what was shown).
The documentary also mentions the study may even actually have been about the influence of different parenting styles on the children, or even about mental illness, given many of the participants in the study had biological parents who may have been mentally ill (who the hell would give up their children if they didn't have some serious mental issues?!), which again seems to point at trying to divert from the study findings in my opinion.
The documentary is a little sensationalistic as it tries to outrage the viewers instead of trying to understand the actual circumstances of the study (siblings were always separated at birth at the time in most adoption agencies, apparently, that was not the fault of the study), which is a pity but understandable as that makes for better entertainment which is what Netflix really needs for its viewers to be happy, but still it's well worth a watch.
These articles talk a little bit about the controversies:
https://www.newscientist.com/article/2208369-three-identical...
https://www.theguardian.com/science/2018/nov/11/nature-or-nu...
These always seem to miss the effect of nutrition (and other) in the womb, which is massive. You need nonidentical twins as controls.
I used to teach science and would tell students not to give life advice to the reader, because that's what we were supposed to teach them. But then all these climate change papers started doing just that. It's equivalent of ancient mathematicians saying "glory to the king" in their work and reveals that the authors are bound by a conflict of interest and can't be expected to do honest work.
I recently read one about childhood safety, and they said that following the government's safety rules was important, while also defining their own idea of what kinds of safety are valuable or harmful. If the government already knows better than you, why are you even researching this? It's obviously just some effort to pressure people into not making their own dangerous decisions. But again, that's not science, that's activism and non-objective.
There's the Minnesota Transracial Adoption Study. The authors found a politically incorrect result and tried to cover it up by inventing a new hypothesis (which they hadn't tested) after they'd collected their data.
I also read a fairly comprehensive secondary research paper trying to support the no-biological-differences theory and when it came to Ashkenazi Jews, they admitted the only plausible explanation was genetic superiority.
This is an area where the science all points in one direction but popular opinion is in the other direction. People don't look at the research. Probably because they don't want to understand, they just want to spread their political ideology. Nobody, as far as I know, has ever shown that no races are inferior.
I'm sure you know how unscientific IQ tests are, I'm surprised that's what you're bringing up here as being "good science" being shut down politically. Just trying to correlatw the two tests they used is absolutely subjective, I would take a step back and reexamine the parts of those studies that convinced you of whatever beliefs you have - it seems like a shoddy foundation.
There's honestly no evidence for the environmental-only theory of intelligence. That's the popular politically correct belief but every study I've ever seen or heard of either fails to support it or supports the opposite.
Common misconception, sadly untrue. There are known genetic predictors of intelligence, they're just not simple genes that the layman can wrap his head around.
All the same, I guess I am out of date (in 2017, they were getting 1% - perhaps in 2030, they will be up to 50%? Or back down to 2%?)
In general, I don't think there's any problem with saying some traits we call intelligence are heritable and that has a genetic component. I'm less sympathetic to the idea that intelligence is a simple scalar (the Q in IQ) or a quantity that should be used to prejudge candidates for given technical or social tasks. I mean, if somebody is good, does it matter that they are dumb as hell? I certainly would rather a talented dumbass than a useless genius as a coworker.
The difference between a society with an average IQ of 100 and a society with an average IQ of 70 is one of intelligence. That's why, for example, any policy that allows emigrations from IQ 70 societies to to Western countries, which usually average around 100 IQ, is a bad policy for those Western countries.
There is no nation without natalism.
Strong claim, hard no.
In 20th century scientific records that's about the difference between pre WW German country schools and the same regions in the later part of WWII under siege and under supplied.
That large difference has been attributed to nutrition rather than intelligence given the same genes, the same schools, the same society, etc.
> True, intelligence is not simple.
At yet there you are, mere sentences later, over simplying it and ignoring significant confounding factors. Deliberate malfeasance, oblivious blind ignorance, ... ?
> The genetic variation across one race (say black) is much greater than the variation between races.
Why did you say that? Are you implying that there must be a wider range of IQs among various ethnicities within a race than between races? That's not a logical conclusion. Do you have some other chain of logic in mind?
By the way, I only use the word race loosely. I really mean ethnicity. Although the findings do still broadly apply to the classic 3-ish races.
No, ethnicities are absolutely not just administrative or cultural groupings. You've clearly done no research into this topic whatsoever and are just repeating some misinformation you got fooled by. Even the classic races which are unnecessarily crude by modern standards do actually partly correspond to distinct genetic groups. We can now classify ethnicities at a much finer level of detail and they're still distinct genetic groups.
Ironically given the article this is under, IQ was considered to be dirty Jewish science by the Nazis, probably because it showed Jews to be superior.
Honestly, you just sound like you're a racist. Which is sad, but it's also indicative of a lack of common sense that you expect the universe to conform to your prejudices.
You must also think scientists don't believe in the distinction between planets and dwarf planets, or even stars. Yes it's an arbitrary classification, but it's still useful.
You're thinking is just like the people in TFA. Rejecting some science for arbitrary and nonsensical political reasons. You've replaces dirty Jewish science with dirty racist's science.
where the bulk of scientists agreed in various ways that the confounding problems made it exceedingly implausible that differences were either entirely genetically based or entirely environmentally based?
> This is an area where the science all points in one direction but popular opinion is in the other direction.
Or maybe an area where the science is inconclusive but personal opinion shades the reading and subsequent presentation?
"entirely environmentally based" is the popular and un-scientific belief that I disagree with. So you agree with me?