Sunday, June 17, 2018



The rise and fall of average IQ test scores

I was just cranking up my aged brain to say something about the latest IQ findings when I found that young Oliver Moody of "The Times" has spared me the trouble.  His summary is below.  There are a  few things I would like to add, however.

Perhaps the most interesting fact to emerge is that dumb women having more babies is not a problem.  As long as I have been reading the literature on IQ, people have been worried about that.  Are all these smart ladies who think no man is good enough for them degrading the average intelligence of the human race?  Wonder of wonders, the latest research from Norway was able to rule that out.

Various people have pointed out that the dumbest females for various reasons tend to have NO babies and a majority of high IQ females do have some babies.  And it was always hoped that those two effects would cancel one another out. And we now have grounds to believe that exactly that has happened.

A lot of interesting IQ research comes out of Norway and Sweden.  The reason is that the Scandinavian countries are very authoritarian, which leads them to keep extensive records about each individual person in their countries.  So if you can get access to government data you can base your research on the whole population, not just a sample, with all its attendant doubts and difficulties.

So what we now know with some confidence is that IQ scores rose during the first three quarters of the 20th century but then flattened out before going into a decline.  And that could clearly not be due to genetic changes.  Evolution doesn't work that fast.

So what WAS going on?  There are two major possible explanations: Computer games and education. Blaming computer games has been going on as long as there have been computer games and it is in my mind just snobbery or some such:  A convenient whipping boy for all sorts of ills.  There is actually a fair bit of evidence that games and internet exposure generally are most likely to be good rather than bad for our brains (e.g. HERE and  HERE  and  HERE)

Additionally, like Piaget, I have tended to find the kids in my care to be instructive.  My son, for instance, could load up and play his favourite computer game when he was two and he plays a lot of games to this day now he is in his 30s and works as an IT professional.  And what I saw was that game playing is normally quite social. There will usually be other kids hanging around and talking even with single-user games and some games are quite educational in themselves.  My son learnt most of his ancient history from "sims" set in that era. He learnt precious little ancient history at school.  So I personally exonerate games from being bad for most people.

So what DID go wrong?  Just one thing can account for both the rise and fall in measured IQs:  Testing.

During my schooldays in the '50s testing was all the rage.  We even did IQ tests at least once a year.  And there were heaps of in-school tests. From about grade 3 on, for instance, we would have weekly spelling tests -- in which a kid got a list of 10 words that he had to learn how to spell. Being a born academic, I always got 10 out of 10 and was regularly praised for it.  Which was a bit unfair because I put zero work into it.  I just had to see a word once to know how to spell it. I still do.

And I think that is one example of a huge difference between then and now.  Education used to be COMPETITIVE and "winners" got all the praise. And nobody apologized for that.

It seems to me that there should be no great  difficulty in arranging prizes for both ability and effort but the Left have simply closed their eyes to ability

By about 1975 or thereabouts, however, the political Left had got a vice-like grip on education worldwide.  Even in chapter  48 of my 1974 book, I noted its encroachment. And Leftists HATE competition because it clashes with their idiotic and counterfactual belief that "All men are equal".  To validate that gospel, therefore, all had to have prizes, not just one kid.  And if you believe that all men are equal, there would be no point in testing.  If the marks come out all the same, what would be the point? But the marks don't come out all the same so to avoid that reality, you just don't do testing if you can avoid it.

The rise in measured IQ scores during the first three quarters of c20 has been the cause of much discussion and the most usual explanation for it is that it was due to the steady expansion of education during that era.  More kids gradually got more education as the century wore on.  And that was highly relevant to performance on IQ tests.  All the testing you did at school made you "test-wise" and that helped you to do well on IQ tests.

You learnt, for instance that ever useful strategy of: "If you don't know, guess". Some guesses will be right and that will raise your overall score. IQ subtests that were not facilitated by testing -- breadth of vocabulary for instance -- showed very little rise in scores.  You know what an uncommon word means or you don't. So it was environmental rather than genetic factors that explains the rise in average IQ scores -- known generally as the "Flynn" effect.

But the dominance of Leftism wiped all that. Leftists have a horror of competition so avoided testing at all costs.  So an education no longer helped you to do well on IQ tests. And as Leftism gradually tightened its grip, the education effect on IQ scores shrank and shrank.  So IQ scores declined gradually over the years.

It's consoling to note however, that the genetic contribution to IQ test score has not changed.  We are still as bright as we ever were and what we are genetically is increasingly the sole thing reflected in the IQ test scores.


The IQ scores of young people have begun to fall after rising steadily since the Second World War, according to the first authoritative study of the phenomenon.

The decline, which is equivalent to at least seven points per generation, is thought to have started with the cohort born in 1975, who reached adulthood in the early Nineties.

Scientists say that the deterioration could be down to changes in the way maths and languages are taught, or to a shift from reading books to spending time on television and computers.

Yet it is also possible that the nature of intelligence is changing in the digital age and cannot be captured with traditional IQ tests. The turning point marks the end of a well-known but poorly understood trend known as the Flynn effect, in which average IQs have risen by about three points a decade for the past 60 or 70 years.

“This is the most convincing evidence yet of a reversal of the Flynn effect,” Stuart Ritchie, a psychologist at the University of Edinburgh who was not involved in the research, said. “If you assume their model is correct, the results are impressive, and pretty worrying.”

There had been signs that IQ scores might have fallen since the turn of the millennium. Two British studies suggested that the decline was between 2.5 and 4.3 points per decade. This has not been widely accepted owing to the limited research to date. A study has now shown, however, that Norwegian men’s IQs are measurably lower today than the scores of their fathers at the same age.

Ole Rogeberg and Bernt Bratsberg, of the Ragnar Frisch Centre for Economic Research in Oslo, analysed the scores from a standardised IQ test of more than 730,000 men who reported for national service between 1970 and 2009. The research appears in the journal PNAS.

The vast majority of young Norwegian men are required to perform national service and take a standardised IQ test when they join up.

The results, published in the journal PNAS, show that those born in 1991 scored about five points lower than those born in 1975, and three points lower than those born in 1962.

The reasons behind the Flynn effect and its apparent reversal are disputed. Scientists have put the rise in IQ down to better teaching, nutrition, healthcare and even artificial lighting.

Some academics suggest the recent fall could be down to genetics. Their argument is, crudely, that less intelligent people have more babies, and so over time the gains are cancelled out by the spread of genes linked to low-intelligence.

Yet this theory has been scotched by the Norwegian paper. Because the decline can be observed within the same families, it is unlikely to be the result of a demographic shift.

Dr Rogeberg said it was more plausible that the changes in the way children are educated or brought up – such as less time drilling pupils in reading and mathematics – were at play.

He stressed that the findings did not necessarily mean that today’s young people were any more stupid than their parents. Instead, it may be that definitions of intelligence have yet to catch up with the skillset needed to navigate the digital era.

“Intelligence researchers make a distinction between fluid and crystallised intelligence,” he said. “Crystallised intelligence is stuff you have been taught and trained in, and fluid intelligence is your ability to see new patterns and use logic to solve novel problems.”

Classic IQ tests, with their emphasis on arithmetic and verbal reasoning, tend to favour the kind of crystallised intelligence that is fostered by a more traditional education. “If this is the underlying cause of the decline, this need not be overly worrying,” Dr Rogeberg said.

Robin Morris, professor of neuropsychology at King’s College London, said IQ scores probably had hit a ceiling in the west, but there was not yet any reason to be unduly concerned.

“I think the reverse Flynn effect is real but would urge caution about generalising based on one sample,” he said. “Probably the tailing off is a general effect in high income countries in which the contributor factors generally stabilise.”

SOURCE

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Embarrassing backdown on Seattle's Redistribution Scheme,/b>

The city council repealed the "head tax" passed just last month to "combat homelessness."

In May, the Seattle City Council class warriors unanimously enacted a head tax — a $275 penalty for each full-time employee of a company earning annual revenue of at least $20 million. Yet in the face of stiff opposition, the council reversed course Tuesday, dropping the tax in a 7-2 vote.

Some 600 Seattle employers would have been hit by the tax, which was supposed to fund income redistribution to address the city’s homeless crisis. Amazon and Starbucks led the charge to oppose it because, obviously, the tax would destroy jobs. (It’s worth noting that homeless people are generally jobless.) Amazon even halted construction on a new office tower in downtown Seattle. While Amazon’s billionaire chief, Jeff Bezos, is no friend of Liberty, he got this one right — even if he is a hypocrite. The final straw was likely Monday’s announcement that a business-supported group called No Tax on Jobs had already gained enough signatures to challenge the tax on the November ballot.

Kshama Sawant, the socialist council member who pushed the tax in the first place, lamented, “I have a news flash for council members who capitulated to this in lightning speed: This was never going to be easy in the face of mass corporate misinformation. It’s a complete betrayal of working people.” Actually, the real economic fact is that repeal will save a lot of Seattle jobs.

Mayor Jenny Durkan and the members of the council who reversed course didn’t exactly admit they were wrong, though. “It is clear that the ordinance will lead to a prolonged, expensive political fight over the next five months that will do nothing to tackle our urgent housing and homelessness crisis,” their statement said. “We heard you … [and will] repeal the current tax on large businesses to address the homelessness crisis.”

In other words, you selfish jerks are ruining our redistribution scheme. But don’t worry; Seattle’s socialists will come up with another plan to confiscate money.

SOURCE

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MSNBC’s Andrew Mitchell Demands Christianity Be Removed from Politics

It’s funny when they just come out and say it.

For traditional Americans, the left’s vitriolic hatred of Christianity has been known for some time. Whether it’s taking prayer out of school or shaming public displays of faith, liberals try to vanquish Christian teaching from the public square.

This was apparent recently when the Supreme Court ruled in favor of a Christian baker who refused to design and bake a wedding cake for a gay marriage ceremony. Rather than allow a faithful baker to live out his faith in his profession, the left insisted that he hide his Christianity, only bringing it out in private moments. (RELATED: Supreme Court Rules in Favor of Masterpiece Cakeshop in Religious Liberty Case).

Now we have yet another example of the anti-Christian bias so frequent on the left. Attorney General Jeff Sessions invoked the biblical passage of Romans 13 to justify his enforcement of federal law. In the verse, the apostle Paul urges Christian adherents to obey the law of whichever country they happen to be living in. The left, of course, wasn’t having it. (RELATED: WaPo Compares Sessions to ‘Slaveholders’ After He Quotes Bible Passage Related To Immigration Policy).

Andrea Mitchell, one of MSNBC’s top reporters, chastised Sessions, saying she didn’t think Christianity had a place in our public policy:

Conservative writer Erick Erickson shot back at Michell for her remark, reminding her that plenty of American thinkers have invoked Scripture to help shape laws:

Mitchell replied, saying that strict immigration laws violate the ethics of the New Testament:

Just a reminder: Andrea Mitchell is greatly admired by Hillary Clinton, and if one wants to speculate, probably her favorite reporter.

Mitchell couldn’t be more wrong, of course. The American system of government was designed by our founding fathers who were faithful. John Adams famously wrote, “Our Constitution was made only for a moral and religious People. It is wholly inadequate to the government of any other.”

Denying the role religious texts play in our government is to deny the very foundation of America itself, which was founded upon enlightenment principles mixed with a reverence towards “nature’s God.”

That doesn’t make America a theocracy, as so many liberals contend. Rather, it acknowledges the truth of our founding and the beneficial role religion can play in the public square.

Mitchell’s comment is insulting because it implies that someone of religious conviction can’t help craft public policy as an elected official. Would she say the same thing about a Muslim or Jewish lawmaker who cites the Quran or the Torah?

SOURCE

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Chaos in California: Sanctuary policies prompt release of manslaughter, rape convicts

Deportation officers arrested 162 people in the Los Angeles area this week in a new action aimed at one of the country’s most notorious sanctuary city areas.

Nearly a third of those arrested had been in local custody before but were released under sanctuary policies, said U.S. Immigration and Customs Enforcement.

One of those had served time for voluntary manslaughter, while another had been convicted of assault with intent to rape. Both were released despite active ICE detainer requests, the agency said.

ICE says that when local police won’t cooperate, deportation officers are forced to go out into communities to try to get their targets — and that means they’ll end up arresting more rank-and-file illegal immigrants who weren’t targets, too.

It’s also more dangerous for all involved, said David Marin, director of the deportation office for Los Angeles — though he said it’s necessary.

“We will continue to dedicate more resources to conduct at-large arrests to ensure the safety of the law-abiding citizens of our Southland communities,” he said.

SOURCE

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1 comment:

Robert Young said...

John, While this would not account, perhaps, for the decline, but have there been studies correlating IQ and diet? The 20th Century saw a vast improvement in food supply, diet and caloric intake. That could lead to improved brain function and the improvement in IQ scores over that period.