Against Davide Piffer, and against the HBD scam.
Davide Piffer is an Italian (Sallis note: “Davide Piffer” – Italian?) parapsychologist crank who claims to have psychic powers, including precognition, ESP and psychokinesis.
That’s who Amren believes is a viable commentator on racial science. As I always say – HBD makes you stupid.
He is currently a PhD student in Psychology at Ben Gurion University of the Negev.
I’m shocked – shocked I say! – that an IQ-obsessed HBDer whose work ultimately promotes intra-European division is a PhD student in Israel. Israel!
These guys aren’t even attempting to hide their agenda. And where are the WN 1.0 guys on this? Strom? Come on, Kevin, instead of your last contribution (the second one described here), how about a full-throated attack against the Jewish-Asian HBD cult? A few comments here and there over the years do not suffice. Will all the remaining WN 1.0ers out there let HBD wreck whatever is left of racial activism, after the damage already done by the Alt Right? Does Ted Sallis have to be the only person (and not a WN 1.0er at that) on the Far Right who speaks out against HBD the same as I (very presciently, by the way) spoke out against the Alt Right contagion?
More shocking information:
Piffer is a research fellow of the Ulster Institute for Social Research a racist institute founded by Richard Lynn…
Surprise! By golly, he also promotes Lynn, and Lynn’s discredited work. Who would have ever guessed?
Refuting Piffer. Read this, emphasis added:
Think what happens e.g. in Dunkel et al (2019) test. They use PGS from Lee et al (2018), where the prediction test sample includes White Americans of European descent and a part of them (1% in the HRS sample) are Ashkenazi Jews. Dunkel makes just as Piffer, just as described above. US Ashkenazi Jews have an average IQ of 110 and US White Christians have an IQ of 100. The predictor can usually tell that if a person is a Jew from SNPs, as these populations are genetically different. To a Jew it gives the score 110, to a Christian it gives 100. This happens in any sample with White Americans. It does not need to be the test sample. The weights of the predictor are set so that when summed over a subpopulation it works as a predictor of the subpopulation and gives the subpopulation average as the prediction. Consequently, this predictor gives US Ashkenazi Jews a very high PGS score. It is built that way. This has nothing to do with the real influence of the SNPs to educational achievement. This result comes merely from the facts that the average IQs of these two subpopulations differ and that the genes of the subpopulations are different enough for the predictor to detect to what subpopulation a person belongs to.
Did you get it? Piffer’s, and Dunkel et al’s, correlation is a mathematical consequence of the way the PGS is created. It is not any research result. It does not prove anything of the importance of genes to IQ. It is similar to a case where you put a stone in your pocket and later find it, or where you, at some less obvious step multiply your number by three and at the end show, look, it is divisible by three. Of course there is a correlation between the country PGS score and the country average IQ, because the country average IQ highly correlates with country average educational achievement, and you created a predictor which should give a linear correlation between country PGS and country educational achievements.
Some people are impressed that Piffer’s results repeat in each test. Of course they must repeat. The reason there is the correlation is a mathematical identity. It must always repeat, but it does not mean anything. You would get the correlation even if the SNPs had no influence to the property P.
The problem clearly is in Dunkel et al (2019) as they compare two subpopulations, which have different genes and different IQs, and these two subpopulations were both in the prediction sample. This study must therefore be discarded. It does not matter that Jews were only one percent: the PGS score for them comes from this one percent. Piffer’s earlier papers have an IQ gradient in Europe. It seems that the prediction sample had multiple subpopulations from Europe. This is wrong. The last paper of Piffer does not show this North-South IQ gradient in Europe, because the sample was made from Americans of European origins. As they all live in similar circumstances in the USA, there is no IQ gradient. This naturally shows that Piffer’s earlier papers were incorrect because of the prediction sample. The new paper is also incorrect: Piffer includes Ashkenazi Jews, which belonged as a subsample to the prediction sample.
Again, this is the sort of pseudoscience peddled by Amren, and by other “movement” promoters of HBD like Greg Johnson. You may try and excuse them by saying that, not being STEM folks, they have been misled by HBD pseudoscientific nitwits. But, alas, all these “race realists” and “philosophers” and others have been warned repeatedly about HBD, including by me at this blog, so they have no excuse. Because HBD fits in with the narrative they push, they accept it. And, yes, I openly admit to drinking the HBD Kool-Aid back when I was interviewed by Griffin and said some positive things about the frauds. Back then, I just accepted it as part of “movement” conformity, but once I started questioning “movement” dogma, I applied the scientific method to critically evaluate HBD. It’s a fraud. And worse, it is an anti-White fraud.
Note: As they all live in similar circumstances in the USA, there is no IQ gradient.
That is what I call “the America test.” How do groups perform in the same environment – the USA (with its mixed population)? Yes, there are group differences in IQ and achievement (of the latter, for Jews and Asians, some of that is due to ethnocentrism), but many supposed intra-European differences do not seem to be replicated in America. The HBD explanation typically is “selective immigration”- but if they really believe that, then they and their followers should stop attempting to apply their (likely wrong) European data to European-Americans.