RE: Crime Stats. There was work out there that showed the crime spike between the 60s and 00s in the US coinciding with 1) the move from segregation and the development of more independent African- American communities, 2) the more relaxed immigration policy, especially from South America(you've seen Scarface, probably). But because correlation != causality I would add a lot of other factors that were conducive to an uptick in criminal behaviour: the War in Vietnam and the massive disillusionment with the government, also late 70s and early 80s economic recession(conveniently the spike on the graph ;) ), a string of not so formidable presidents with horrendous public policy etc. So even though fertility is going down, some environmental factors are quite ripe for increase in criminality(with economic troubles being an almost sure fire trigger).
"The current generation of young people scores about a standard deviation higher (average d = 1.05) on the clinical scales, including Pd (Psychopathic Deviation), Pa (Paranoia), Ma (Hypomania), and D (Depression). "
That's huge if it represents a real increase, the average person in the current generation is at the 86th percentile of the comparison group. Another generation of "progress" to 98th percentile and we'll be undone.
On another note: For these purposes crime statistics should probably be age-adjusted and medical-tech adjusted for homicide.
Maybe the test givers are just getting nicer and giving more lenient scores than they did in the past. That's how it was for me on the intelligence test I took, although I wasn't told whether it was for IQ.
My theory of the Flynn Effect is that early IQ test designers came up with tests that measured skills that tended to be more in demand and more trained for by daily life in the future. In particular, the push to come up with tests that were less culture-dependent brought about more futuristic tests like the the Raven's Matrices.
In this view, it's not wholly a coincidence that the Father of American IQ Testing (Lewis Terman) and the Father of Silicon Valley (Fred Terman) were father and son.
Didn't Hsu have a post some time ago arguing that while the total IQ score is increasing, scores on verbal tests, which he argues is one of the and maybe the most important factor in abstract reasoning (inb4 wordcels), are actually quite steady and even declining? I can't remember which post that was from though so there's your anecdotal evidence of reverse Flynn right here.
Check the work of Edward Dutton and Michael Woodley. If you look at the more g (general intelligence) weighted metrics iq is indeed going down. So is color acuity and reaction time, which both correlate to intelligence.
RE: Crime Stats. There was work out there that showed the crime spike between the 60s and 00s in the US coinciding with 1) the move from segregation and the development of more independent African- American communities, 2) the more relaxed immigration policy, especially from South America(you've seen Scarface, probably). But because correlation != causality I would add a lot of other factors that were conducive to an uptick in criminal behaviour: the War in Vietnam and the massive disillusionment with the government, also late 70s and early 80s economic recession(conveniently the spike on the graph ;) ), a string of not so formidable presidents with horrendous public policy etc. So even though fertility is going down, some environmental factors are quite ripe for increase in criminality(with economic troubles being an almost sure fire trigger).
"The current generation of young people scores about a standard deviation higher (average d = 1.05) on the clinical scales, including Pd (Psychopathic Deviation), Pa (Paranoia), Ma (Hypomania), and D (Depression). "
That's huge if it represents a real increase, the average person in the current generation is at the 86th percentile of the comparison group. Another generation of "progress" to 98th percentile and we'll be undone.
On another note: For these purposes crime statistics should probably be age-adjusted and medical-tech adjusted for homicide.
Maybe the test givers are just getting nicer and giving more lenient scores than they did in the past. That's how it was for me on the intelligence test I took, although I wasn't told whether it was for IQ.
My theory of the Flynn Effect is that early IQ test designers came up with tests that measured skills that tended to be more in demand and more trained for by daily life in the future. In particular, the push to come up with tests that were less culture-dependent brought about more futuristic tests like the the Raven's Matrices.
In this view, it's not wholly a coincidence that the Father of American IQ Testing (Lewis Terman) and the Father of Silicon Valley (Fred Terman) were father and son.
https://www.unz.com/isteve/the-flynn-effect-across-time-and-space/
Didn't Hsu have a post some time ago arguing that while the total IQ score is increasing, scores on verbal tests, which he argues is one of the and maybe the most important factor in abstract reasoning (inb4 wordcels), are actually quite steady and even declining? I can't remember which post that was from though so there's your anecdotal evidence of reverse Flynn right here.
Check the work of Edward Dutton and Michael Woodley. If you look at the more g (general intelligence) weighted metrics iq is indeed going down. So is color acuity and reaction time, which both correlate to intelligence.
It's about 1.5 iq points per decade
https://www.sciencedirect.com/science/article/abs/pii/S0160289613000470