IQ tests aren’t scientific? On the contrary, there is a large body of sound research (twin studies,for example), and the research has proven quite predictive, at least when looking at large populations differing by a standard deviation.
What isn’t clear is what accounts for differences in IQ. The Flynn effect is one puzzle. Another is that genetic correlations come in at around .7 to .8. What accounts for these differences (Please note that a twenty to thirty percent variation for non-genetic factors is quite large when we assume a mean of 100)? We don’t know. I believe that there are also some studies that have shown a tendency toward regression toward the general population mean over two or three generations among Asians.
In addition, the development of the field of epigenetics makes the situation even more complicated because we can’t assume any more that there is a unique expression of one’s genetic inheritance.
Nevertheless, low IQ, whatever influences it, tends to correlate with certain anti-social traits. High IQ tends to correlate with certain socially desireable traits. I suspect that the “black culture” manufactured by the sociopathic elements of the black community elevated to leadership by the media and liberals has caused black IQ to deteriorate. This is only a conjecture, but it wouldn’t surprise me if this ultimately proved to be true. If it is true, then any other group adopting similar behaviors is suscepticle to intellectual regression. We may be seeing this among the YOBS in the UK.
A question I sometimes pose is: What does the most backward and dysfunctional continent have in common with the most backward and dysfunctional country in the Western Hemisphere?
“I suspect that the black culture manufactured by the sociopathic elements of the black community elevated to leadership by the media and liberals has caused black IQ to deteriorate.”
I’m not disagreeing with you, but you cannot let the Public Schools and the Teachers’ Unions off the hook for the disasterous state of the intellect and knowledge among black people today.
I can sometimes think it was all a part of a big, commie plot, to dumb down the American people, deprive them of any sense of civic virtue and then keep us all, black and white and all the rest, under the boot heel of government.
Or, maybe they are just stupid and greedy. I’m really not sure, but they are very much to blame, at least in part.