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We're All Getting Dumber, Says Science (fastcompany.com)
dryriver shares a report from Fast Company: Researchers at Norway's Ragnar Frisch Center for Economic Research now have scientific proof of something we've long suspected -- we're all getting dumber. In their paper, "Flynn effect and its reversal are both environmentally caused," which was published in Proceedings of the National Academy of Sciences, Bernt Bratsberg and Ole Rogeberg report that IQ scores have been steadily dropping since the 1970s.
The study consisted of analyzing 730,000 IQ test results gleaned from young men entering Norway's compulsory military service from 1970 to 2009. They found that scores declined by an average of seven points per generation, a reversal of the so-called "Flynn effect" where IQ was seen to be rising during the first part of the 20th century. The decline may be due to environmental factors, but because the researchers couldn't find consistent trends among families, Bratsberg and Rogeberg discounted factors like parental education, family size, increased immigration, and genetics as significant causes.
The study consisted of analyzing 730,000 IQ test results gleaned from young men entering Norway's compulsory military service from 1970 to 2009. They found that scores declined by an average of seven points per generation, a reversal of the so-called "Flynn effect" where IQ was seen to be rising during the first part of the 20th century. The decline may be due to environmental factors, but because the researchers couldn't find consistent trends among families, Bratsberg and Rogeberg discounted factors like parental education, family size, increased immigration, and genetics as significant causes.
Unless there is something VERY special about Norway, a wide-spread trend that cannot be attributed to education, gender, religion, or other environmental factor has pretty good predictive qualities, since the sample size is large, and unbiased (Only males tested most likely, but the service is compulsory, not voluntary. That means *All male citizens*, not "Those that show up to the recruitment office".
It means the sample is very very large, and that the trend is pervasive and wide-spread is pretty interesting.
To rule out that something is indeed special about Norway, it needs to be replicated with data from other geographic regions-- but so far it is a pretty compelling argument using raw statistics.
Having done the army test in 2003, as all Norwegian 18 year-old males had to even if they didn't end up serving, I can tell you it was a three part timed test.
1) Mathematics
2) Linguistics (In Norwegian)
3) Logic/Pattern analysis.
Education comes into play in the first two, and the third one is more about figuring it out as you go.
You are then scored 1-9 in each of them as well as all the other testing such as hearing, vision and colorblindness.
I suggest that you review the definition of the word "Compulsory."
It means you don't have a choice in the matter. Or, that the tests are applied to *ALL MALE CITIZENS*. Since this is literally a sample size of "All male citizens of service age in Norway from the start year, to the terminus year", you are talking a very large and unbiased (by ethnicity, race, cultural upbringing, religious practice, affluence level, ... etc.) sample. The only demographic excluded is likely to be female gender, which I explicitly lamplit. Unless you want to make a compelling argument that women are intellectually inferior to men (*gigglesnort*) in the face of a wide number of well reviewed studies to the contrary of that assertion, there is no grounds to claim systemic bias of the sample.
Hence unbiased.
I suggest that you review the definition of the word "Compulsory."
Somehow, the fact that you’re having to explain what “compulsory” means - in juxtaposition to the topic at hand - seems both very hilarious and very apt.
#DeleteChrome
Ah yes, 40 years ago was a classic time in cinema. It's too bad we no longer get such intelligent fare as The Swarm, Laserblast and everyone's favorite The Star Wars holiday Special
Or maybe... just maybe... you've forgotten that 99% of what was produced back them was garbage too, just like 99% of what's produced today.
For example when is the IQ test conducted? Before they are conscripted into service of before that as an evaluation of their abilities?
During the intake ("sesjon"), up until 2009 all males had to go through that even if they'd be dismissed afterwards as not fit for service, conscientious objector or whatever. Then they'd choose to draft some of the people deemed fit for duty. That's probably why the study is to 2009, from 2010 they added a pre-screening because they did have a lot more candidates than they actual needed. And now the process is gender-neutral, everybody goes through the same pre-screening but in practice you don't get called into service unless you want to. Though it theory they can now draft all men and women of service age if shit happens, of course we'd never have time to equip and train them in an actual emergency.
That debate was actually quite funny, originally it was mostly men complaining that why should they waste a year living in bunk beds and digging trenches and the women don't while the women were generally against it. The turning point was certain people taunting like "awwwww, of course us big strong men will protect you delicate little flowers" and feminists going "oh heeeeeeeeell no we can defend ourselves thankyouverymuch where's that's uniform?" Once it became their own cause then it was pretty much a done deal. Kinda like sex and porn, if it's women being what men want it's all hiss boo, if it's women embracing their sexuality then yeah hurrah. Even if it's doing exactly the same...
Live today, because you never know what tomorrow brings
Exactly right sir. I get so annoyed when people say "back in the old days..." because the same effect applies on many levels.
Old people today act like the USA is so much more violent and riddled with crime when in reality we have considerably less violence and crime.
The vast majority of books, movies, tv and music produced in the past was also mass produced garbage put together by executives rather than artists. The stuff that everyone remembers is remembered precisely because they were the bright exceptions in the garbage pile and so survived to be picked up by later generations.