Lol, it's reversing all across western Europe and has been since birth cohorts starting around 1970. The Norwegian studies are the most cited AFAIK.
Lol, it's reversing all across western Europe and has been since birth cohorts starting around 1970. The Norwegian studies are the most cited AFAIK.
They try to end the article with some feel-good hand-waiving, but so many things have changed since the mid 1970s, that it feels ridiculous to use lack of formal reasoning as an excuse. Since there's no data on it, nor on "fluid intelligence", there's no reason to assume later generations have more or less of either. If they do lack "crystallized intelligence", they did indeed become dumber.
They said that the drops in IQ are not explainable by immigration, but this is something that is only the case in their own study in Norway where the IQ drop was something like 1-1.2 points per decade, while the countries with big drops-- France and the UK have drops that are about 3.2-4.3 times higher.
I was issued such tests several times as a young child. The first time, I cried and did miserably. It was all so strange and unfamiliar. Had never seen logic puzzles before and didn't understand what they were asking of me.
My mom took me back a few weeks later and paid for me to re-take another IQ test. I did so well they placed me in "gifted" classes where I remained throughout my primary education. I didn't magically get smarter; I just became more comfortable with the test format.
I had a similar experience as an adult in my late 20s. Bought a Mensa book containing two practice exams. Took one and fell about 15 points (a full standard deviation!!!) shy of my childhood score. A week later I took the second test and equaled my childhood score almost exactly. Again, I am assuming I didn't sprout a bunch of new synaptic connections.
I suspect that second chances like these and familiarity with IQ tests in general correspond tightly with socioeconomic background. The more privilege you have, the more likely you are to get the chance to become comfortable with these sorts of tests and score closer to your maximum personal potential.
If I, an American, take an IQ test right now... I'm probably going to score better than somebody from another part of the world with equal intelligence who's never seen one of those tests before.
Would you care to elaborate on the famously racist parts ( and ideally what is racist about them ? )