Better is to predict many external outcomes and average across them to find the best set of estimates. This is best on the assumption that maximizing reliability and construct validity will maximizing predictive validity. I suggest you download the SPI and use the indicators as your outcomes. Average across them (remember to use absolute values, or reverse by the S factor loading), and see which set does the best. https://www.socialprogress.org/
What did you norm the IQ to, that is what did you set IQ=100 as? Usually it is set at the average IQ of the UK, but that doesn't seem to be the case here.
I see North Korea number isn't to deviatted from other estimates which It really proves the case of hereditarianism I mean literally there are way richer and with better quality of life countries with less IQ
1. North/South Korea - basically all nutrition impact
2. Africa, Persia - poor education systems + nutrition
3. Surprised you didn't include Antarctica.
4. Israel scoring low indicates another hidden elephant in almost all of these colours - distribution. Some countries have elites that would score extremely high (Iran, Israel, Turkey, USA, South Africa) but due to the political system there are sizeable minority population with no nutrition and no education.
5. I'm still doubtful of Chinese data, but their nutrition is very good due to extreme overfishing of the whole Pacific (and other Oceans...)
6. I would argue with equal nutrition and education Sub-saharan Africa will have the highest IQ outliers in the world.
In conclusion, it's disappointing i haven't seen a good data on IQ, still. You can easily find huge databases from online IQ tests. Mensa has a short one, very robust, globally taken. These tests often have additional questions so data scientist could triangulate proper setting for each country to get an actually reliable result to correct for nurture. Hope i'm wrong and there is such statistics available.
At this site, we have consolidated Lynn's work with genotypic estimates from brain size and GWAS. Lynn's research was always valid, as proven by correlations, but was deflated at the lower end of the distribution. However, we rectified this by rescaling it using the above genotypic estimates and population data while preserving the correlations, as correlations don't care about differences in scale, only relative differences.
The estimation of Iran's IQ is completely wrong, especially since this country is among the top countries in Mathematical Olympiad.
"l statistical analyses were performed using STATA software version 11.1. The number of participants in the 51 studies was 5352. The mean total IQ score in Iran was estimated 97.12 (95% confidence interval [CI]: 88.71-105.52), the practical intelligence was 92.84 (95% CI: 79.14-106.55), and the verbal intelligence was 94.50 (95% CI: 83.90-105.10). "
National IQ is not that meaningful for big countries like US, China, India, Indonesia, Brazil, etc. The variation of IQ within a country can be as large as that of an European country and an African country. Take Brazil. The southern Brazilian states have large White European populations while the north of the country is full of mixed/Africans. Their IQ difference is 1 SD just like between Europe and Africa. Han Chinese mean IQ is 101. But if you compare Hans and Tibetans/Uyghurs, there's also a 1 SD difference.
Better is to predict many external outcomes and average across them to find the best set of estimates. This is best on the assumption that maximizing reliability and construct validity will maximizing predictive validity. I suggest you download the SPI and use the indicators as your outcomes. Average across them (remember to use absolute values, or reverse by the S factor loading), and see which set does the best. https://www.socialprogress.org/
National IQ have been my main obsession for the last few days. Spending countless of hours. Figuring out the correct numbers etc.
Thank you for this beautiful post seb. This feels like Christmas
About SE Europe results:
https://commons.m.wikimedia.org/wiki/File:Romani_population_average_estimate.png#mw-jump-to-license
Why Israel IQ is inferior to many white gentile countries?
What did you norm the IQ to, that is what did you set IQ=100 as? Usually it is set at the average IQ of the UK, but that doesn't seem to be the case here.
Why is Kosovo such a big outlier?
I see North Korea number isn't to deviatted from other estimates which It really proves the case of hereditarianism I mean literally there are way richer and with better quality of life countries with less IQ
Interesting, almost zero genetics involved!
1. North/South Korea - basically all nutrition impact
2. Africa, Persia - poor education systems + nutrition
3. Surprised you didn't include Antarctica.
4. Israel scoring low indicates another hidden elephant in almost all of these colours - distribution. Some countries have elites that would score extremely high (Iran, Israel, Turkey, USA, South Africa) but due to the political system there are sizeable minority population with no nutrition and no education.
5. I'm still doubtful of Chinese data, but their nutrition is very good due to extreme overfishing of the whole Pacific (and other Oceans...)
6. I would argue with equal nutrition and education Sub-saharan Africa will have the highest IQ outliers in the world.
In conclusion, it's disappointing i haven't seen a good data on IQ, still. You can easily find huge databases from online IQ tests. Mensa has a short one, very robust, globally taken. These tests often have additional questions so data scientist could triangulate proper setting for each country to get an actually reliable result to correct for nurture. Hope i'm wrong and there is such statistics available.
At this site, we have consolidated Lynn's work with genotypic estimates from brain size and GWAS. Lynn's research was always valid, as proven by correlations, but was deflated at the lower end of the distribution. However, we rectified this by rescaling it using the above genotypic estimates and population data while preserving the correlations, as correlations don't care about differences in scale, only relative differences.
https://compositator.com/
The estimation of Iran's IQ is completely wrong, especially since this country is among the top countries in Mathematical Olympiad.
"l statistical analyses were performed using STATA software version 11.1. The number of participants in the 51 studies was 5352. The mean total IQ score in Iran was estimated 97.12 (95% confidence interval [CI]: 88.71-105.52), the practical intelligence was 92.84 (95% CI: 79.14-106.55), and the verbal intelligence was 94.50 (95% CI: 83.90-105.10). "
https://pubmed.ncbi.nlm.nih.gov/30967920/#:~:text=The%20mean%20total%20IQ%20score,CI%3A%2083.90%2D105.10).
National IQ is not that meaningful for big countries like US, China, India, Indonesia, Brazil, etc. The variation of IQ within a country can be as large as that of an European country and an African country. Take Brazil. The southern Brazilian states have large White European populations while the north of the country is full of mixed/Africans. Their IQ difference is 1 SD just like between Europe and Africa. Han Chinese mean IQ is 101. But if you compare Hans and Tibetans/Uyghurs, there's also a 1 SD difference.
PISA scores in Russia give 98'8. Can you check?