So...what are your thoughts on the eastern cultures who score very highly on IQ tests then?
Many of those eastern cultures at the time of testing had adopted a wester civ mindset (think Japan and Korea, and to a lesser extent China).
One of the problems with a layperson trying to look into this, pro or con, is the difficulty in getting some of the finer details easily (as chronicled in the OP). Much of the testing was done in the 'west' on recent immigrants or children of the same IIRC from my reading as those subjects were easier to attain. A self-selecting group for sure, but it's my understanding that they did bolster their data with a strong sampling from those in the select countries. I believe the researchers knew their biased samples and attempted to correct for it (which is meaningful in that they cared about the outcome being accurate, even if they failed to achieve accuracy in some way). I remember from some Murray interviews he attempted to describe the way the studies were done, and I think what he did was pull together a multitude of studies regarding IQ from around the world, many done by the governments of those regions themselves, so I believe they would be incentivized to err on the good side of those studies.
Ultimately I don't know, but I accept the basic premise: IQ matters, and can be predicted in large sample sizes if you can determine the genetic makeup of those who were part of the sample.
Another of the IQ researcher said this (I'm paraphrasing):
"Just because I know that the IQ of someone from the sub-saharan would be on average x, if I run into someone from that region at an academic conference I would never assume they were less intelligent than I, and may even assume they may be more intelligent. Large group studies is not a predictor of
individual performance, but can be useful when discussing general trends and could lead to solutions to the problem."
One of the other studies, somewhat related has seemed to indicate there is very little to be done about IQ to
increase IQ, but much can be done to decrease IQ (lack of food, vitamins, water, proper health care, familial relationships, proper education) from it's full potential. Maybe some of the IQ differences are due to cultures in regions with a high correlation between society and genetic makeup aren't prioritizing meeting those basics for the largest number of their populations and is stunting them artificially? Yet one more thing that could be done if WE WOULD JUST LOOK AT THE DATA OBJECTIVELY.