Does the average Indian voter have low IQ?
This “lazy” post* was inspired by a comment left by Prakash on another thread. In his comment, Prakash carried further the argument (first put forward by AG) that Indians are not particularly smart and/or have low IQ.
Below are extracts from comments on this topic (reproduced from the previous post).
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Extract from comment by AG (that triggered the debate)
…Having said that, i notice a lot of reticence in accepting what is otherwise a very obvious but uncomfortable reality: the average indian voter is not particularly smart.
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Comment by Prakash:
Hi AG, Have you seen the data presented in “IQ and the wealth of nationsâ€, which states India’s average IQ at 81. Though it has been mentioned as a huge caveat that our endogenous caste system makes our population multi-modal and extremely diffcult to pin down without a huge statistical exercise.
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Comment by Bhavananda
@AG: Indian voters, like voters in every democracy, vote for something *they perceive* to be in their best interests. For example, they will vote for free colour TVs or loan waivers (or sekoolarism) because they think its in their *personal* best interests which is different from *collective best interest* of the society.
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Comment by Vasudevan:
I tend to agree with AG’s comments that for 60 years, the people of India have voted for the worst possible policies and set of politicians and have generally done themselves in.
…This brings one to the conclusion that perhaps the majority of the voters are indeed nit-wits, who care two hoots for the merits of democracy, rule of the law etc.
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Comment by Prakash:
I have already mentioned the book name “IQ and the wealth of nations†. The authors are Richard Lynn and Tutu Vanhanen.
In this book, they break down the main factors that affect GDPs of nations into 3 major factors – Natural resources, Free Markets, Average IQ.
GDP is positively correlated to average IQ. The correlation coefficient is 0.733, IQ explaining 54 percent of the GDP variance.
There is very little good data about India, because of the abovesaid heterogenity in the population, but the thing is that this book is a summary of pretty much the best data available on this topic. And what the data says is that average indian IQ is low.
This data can be refined much more. The government can run much larger surveys to get more accurate results. If that data again comes up with such or similar numbers, then this is a serious matter to consider. Malnourishment and illiteracy would have to be tackled with much more seriousness than is being done now. Every person who is capable of contributing should be encouraged, not even a single good mind should be wasted. If these numbers are correct, the chinese will have millions of brilliant brains, we will have only thousands (the shape of the bell curve unfortunately dictates that). We might have a need to develop some kind of weird free market based meritocratic oligarchy, instead of our present democratic system. – sorry, too much ranting.
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Comment by Harapriya:
Regarding the contention that the average IQ of an Indian is 81, that might not be far off the mark. In India, we know that childhood malnutrition affects at least a third of the population (those earning less than a $1 a day). Recently Vandana Shiva pointed out that even among farmers, the number of calories consumed has dropped since the government removed the price support to farmers. IQ is mostly a function of nutrition in the early years and a function of both education and nutrition in the later years of a persons’ life. India has consistently failed to address these two issues in its development polices–60 years post independence it still doesn’t have universal primary education and its public distribution system is so flawed that it fails to feed its poor.
I wonder what the average IQ of the Indian politician is. It may be that our politicians are also of such substandard intellectual capability that they cannot comprehend what needs to be done.
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Comment by Bhavanada:
Although I haven’t read the book, I’m not convinced by the argument of GDP to IQ to electing good politicians to good governance. I don’t doubt that because of poor nutrition, education levels, average Indian IQ could be less than, say, in US. But, then with high GDP (hence IQ) the American *RE*elected Bush leading to the current catastrophe. And the Chinese with all their GDP don’t get to elect anyone.
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Comment by Shantanu:
Bhavananda: “But, then with high GDP (hence IQ) the American *RE*elected Bush leading to the current catastrophe.†– that brought a smile to my face! I agree with you that the link between low IQ (if at all) and poor leadership is accidental not causal…otherwise how does one explain someone like Jai Prakash Narayan?
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Comment by ACH:
Related topoint about IQ:
extrat:
Richard Nisbett cites each of these groups in his superb recent book, “Intelligence and How to Get It.†Dr. Nisbett, a professor of psychology at the University of Michigan, argues that what we think of as intelligence is quite malleable and owes little or nothing to genetics.
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Comment by Prakash:
ACH, I really don’t want to turn the thread into a discussion about IQ. When Shantanu is done with more reading, he can launch a separate thread on the same. We can wholeheartedly debate that over there. Kindly note that i did not imply genetic differences alone were responsible. I just pointed out the facts. I also mentioned tackling malnutrition and illiteracy with much more gusto. Why would I say that if I believed IQ was cent percent genetic?
The thing is – everyone knows that after a certain point in time, you cannot teach an old dog new tricks. If you don’t educate and train a person before 25 and cultivate a lifelong learning habit, you’ve lost the potential genius of the person. The holocaust of Indian talent unfortunately continues…
*** End of Extracts ***
Pl. join the discussion and share your thoughts via the comments section.
Other “Lazy” Posts:
Do you believe in Jesus as much as you believe in Ganesh?
A strategic response to terror – “Balkanization†of Pakistan?
On Marayada Purushottam, Sita Mata, Agni Pariksha and Vaali Vadh
Atheism, Spritualism, Theism, Agnosticism and Hinduism – Join the debate
* A “lazy” post is one that is almost entirely made up of readers’ comments and thoughts. Lazy post does not mean plagiarism since full credit is given up front.
There are on the order of a few thousand endogamous groups in India. Variation in mean IQ across these groups should be enormous (possibly a difference of 2 SDs or more). Obviously this has huge policy implications, the first of which is to figure out (do the research) what exactly is the state of affairs and what to do about it (nutrition etc.). Much more important than mean IQ is the smart fraction (i.e the percent of the population above a threshold such as 110 which is below college level but sufficient for a vast variety of skilled trades essential to modern societies; I think India is not too badly off in this regard in terms of absolute numbers). Nisbett’s book has a lot of wishful thinking and is the subject of an article long critique.
There are other group-level factors that can override IQ. Principal among these is co-operation and division of labor. Many groups that have flourished do so not by virtue of their high mean IQ but their extraordinarily high degree of co-operation (some of the gujarati subgroups in the US and other places are examples). So if indeed, as is likely, the average Indian IQ is at most 90 (even after we have done all that is possible in terms of nutrition etc.), we just need to take cold, hard look and do what it takes to increase the competitiveness.
A few external links:
Smart Fraction theory and other related technical topics:
http://www.lagriffedulion.f2s.com/sft.htm
An estimate by rec1man of potential Indian IQ (he pegs it at a max of 89).. I think his analysis is a start and even if the details are wrong, the overall conclusions arent that far removed and in any case the topic merits further research
http://isteve.blogspot.com/2008/05/indian-iq-part-1-diaspora-demographics.html
correction: rec1man pegs it at a potential Indian mean IQ of approx 93 (not 89). Either of these is much higher than Lynn’s estimate. Poor nutrition and lack of basic educational stimulation reduces this by perhaps 5 points or more. rec1man’s approach is to triangulate by using various diaspora populations.
the critique of Nisbett’s book is at
http://psychology.uwo.ca/faculty/rushtonpdfs/Intelligence%20and%20How%20to%20Get%20It%20(Working%20Paper).pdf
China is one of those countries that has underperformed in recent history, relative to its mean IQ (which is at least 10 points or more higher than the Indian IQ) which is comparable to European countries.
A look at trends does seem to indicate the India-China gap is widening, not narrowing. Although growth lifts all countries, it can exacerbate gaps.
Wolfram alpha’s computational engine provides a basic comparison
http://www.wolframalpha.com/input/?i=india%2C+china+gdp
sn has brought out a lot of points from pretty much the same universe of literature that i had thought to quote at a later time. they provide a good intro on the topic.
The IQ question is an important one for India and a compelete cross-sectional study with values for 1- IQ using a culture-neutral test, 2- endogamous group,3 – nutrition, 4 – educational level should be done.
If the numbers come out similar to the ones quoted by Lynn, then the urgency to tackle malnourishment and illiteracy are very great.
Steps to advance in a low IQ environment.
1. Scholarship programmes – An absolutely urgent requirement.
2. Better provision of education, separation of funding and provision.
3. Freer markets – a united all-india market for agro products is an absolute necessity. free markets everywhere else can be a big boost.
4. broadband connections to everywhere – there is a huge difference between broadband and narrowband connection – that difference is the absence of necessity of literacy. broadband connections can transmit video and audio and can connect a huge amount of very useful information to people who presently have a literacy gap with using the present net. The best teachers’ best lectures can be recorded and shared. Everyone can learn from the very best.
5. prizes can be awarded to new successful business models that employ a lot of people. This will move the problem of “how to work with a low IQ populace” to the creativity of an entire market. I would also make the endowment of the national innovation foundation to 50-100 times its present value.
6. wiki pedagogy – already hinted at in point 4. a better pedagogical approach, with all best practices shared in a wiki which all schools in the country can access. An FAQ for all major student doubts should also be created.
7. Nutrition – iodine in salt, iron in flour. a serious micro-nutrient supplementation program for pregnant women and young children.
8. Cultural changes – changes in the civics syllabus on how to vote for a broader interest(?), counselling on avoidance of dysgenic practices.
9. Biological research on boosting IQ – Prizes can be awarded for biological research that can boost IQs. Any medicines thus created could be given out subsidised or mixed in the water supply.
IQ tests need to be understood in far more detail before leaping to any conclusions. What do they really measure? That they don’t factor in cultural, contextual and socio-economic factors is well understood. Rather like making the Bell studies case that blacks have lower IQs than others. How would a banker on Wall St with a privileged childhood and ann Ivy League background be able to respond to an “IQ test” that was designed keeping in mind rural realities of India?
Is it assumed that voters with a high IQ will not vote to obtain short-term gains, even if it is against the long-term interest of the nation, and consequently, themselves also? 🙂
Sanjay, spearman’s ‘g’ is a multi-factor variable which somehow correlates with success in a modern industrial economy.
http://en.wikipedia.org/wiki/General_intelligence_factor
If you accept that the route of industrialisation and information based upon the industrialisation is the way of the future, then IQ tests measure something important. We cannot deny a variable that explains 54% of GDP variance under any circumstances. This number shoots up even higher if you take into account the smart fraction theory mentioned by Griffe Du Lion, mentioned in an earlier comment by sn.
manju, I believe that in general, it is much easier to make a low IQ person ignore his long-term interests for a short term lollipop compared to that of a high IQ person. Incase I am horribly mistaken in this regard, then let us study the factors responsible for long term thinking and study them well. Inculcating long-term thinking, whether by genetic, pedagogical or cultural means is a must.
@ Shantanu:
Thanks for posting this topic.
With my poor IQ, this was a fascinating topic to learn.
cheers
I think the original topic was on the correlation of IQ with *voting* pattern, whereas the current discussion correlates IQ with growth of a nation, which is somewhat obvious – people with high IQ would be more productive and so on. The question is, do people with low IQ make poor electoral choices? Like ignoring long-term plans for short term gains?
In my opinion, no one (with few exceptions ~<1% of India) votes for the long-term vision. Those with high IQ (hence well settled) usually don’t end up voting where as those with low IQ would vote for immediate gains. Its fools like those in the BJP who’d make long promises of long-term vision whereas Congress would win election by providing short-term sops to the rural voters.
@Bhavananda
Voting along caste or religious lines is perfectly rational because it is (or appears to be) consistent with self-interest. Being bribed to vote a particular party is simply a more extreme manifestation. I’d be surprised if this was related to the IQ in general more than weakly. There is a way to check this out from the election results. Have some objective way to decide who the more competent/deserving candidate was. And check if in fact the more educated (a proxy for IQ) section of the electorate was more likely to vote for this person (not that they actually preferred this person) than the less educated segments.
In free and developed societies where people pursue their interests and likes with less concern for their family and group backgrounds, there is a correspondence between IQ on the one hand and ability to co-operate on the other (for example, students in the more elite universities do a lot better in dilemma games by choosing to cooperate). Cooperation, in this context, is acting against narrow self interest.
Leadership can and does make a difference in persuading people to act in their long term interests. In Confucian societies, its much easier for leaders to ask for sacrifices from the populace; this increases the adaptability of such societies. India doesn’t fit in this mold. I didn’t follow the recent elections that closely but, in the end, I think the image projected by the Congress reflected greater competence and fairness. BJPs message wasn’t coherent and the leadership wasn’t inspiring.
@prakash
Isn’t removing the restrictive regulations on private education important? Its hard to open a degree granting institution unless one is a minister or well connected?
I believe that various agencies (school boards, armed forces, IITs,etc.) already have adequate data from school and entrance exams to figure out the distribution of IQ (or something closely related to it)across endogamous groups. It is likely that these data haven’t been analyzed this way. Note that publication of such results is likely to be controversial, esp. to leftist intellectuals who will oppose such research. This is not quite the same thing as administering an IQ test to all segments of the population but it would be a lot cheaper and quicker.
@prakash
4.The best teachers’ best lectures can be recorded and shared. Everyone can learn from the very best.
http://www.youtube.com/iit
Note that the IITs have a great open source initiative along these lines for engineering education. Their content, taken as a whole, is more coherent (because it is curriculum based) than what finds at elite ivy league schools such as MIT and Stanford. Such creative folks should be given encouragement (in this case the effort is steered by Prof. Ananth at IIT Madras and I am told managed by Prof. Mangalasunder); instead they are harassed by Ministry of Human development (Arjun Singh et al).
5. Prizes can be awarded to new successful business models that employ a lot of people. This will move the problem of “how to work with a low IQ populace†to the creativity of an entire market.
The Indian Railways is one such organization with a lot of relevant know-how. It is, like the armed forces, a state within a state, and provides for the welfare for a huge number of people, ranging from uneducated tribals to innovative technocrats (Sreedharan of Delhi metro fame is ex-railways). The armed forces also is a repository of hard to find cultural knowledge as they deal with the full range of groups and get them to work together. If such organizations are dismantled in the name of narrow-minded privatization, we’ll lose a lot.
@SN: What you said has some merit. But consider yourself as a farmer in Bengal (or labour in Delhi,etc) who’s children are down with malaria with no money to pay for medicine. A partyman comes along with Rs1000 in cash for voting for his party. What would you do? Blame the party as much, but can you really blame the farmer/labor? You might think this an extreme scenario, but thats the reality of rural India. Its money for medicine or marrying off daughters or daily needs – the poor are being crushed and I disagree if you say “Being bribed to vote a particular party is simply a more extreme manifestation” because its pretty normal. Moreover, partymen often doesn’t pay cash upfront, but lure voters with local jobs, contracts, alcohol, etc. By an large, the short term gains matter here.
As for electoral strategy, one of the *many* reasons for UPA victory was populism/freebies, which paid off. BJP, as always, refused to look at this angle and it suffered badly. For example, DMK gave away free rice/color TVs whereas in Modi’s Gujarat (forget free electricity) the diamond workers weren’t provided with any direct relief package. End result? DMK beat expectations to come victorious whereas Modi’s victory margin came down. This, again, is one of the many reasons.
Bottomline – In Indian politics short term populism pays off. The blame largely rests on competing politicians and upper middle class of voters who can afford to look for long term gains, but don’t end up voting. I wouldn’t blame poor voters (~60% people) for putting family first!
watch this link to know wht actually IQ means
http://www.geocities.com/rnseitz/Definition_of_IQ.html
Multi-factor variables:) Models can show all & any kinds of causalities but my question has to do with the development and assumptions of the model itself. My contention is that unless extensive longitudinal research is done in multiple countries of varying socio-economic development, the variables to be considered as well as the interplay of the variables themselves cannot be understood. The model therefore is highly suspect.
In addition, is IQ a function of text book learning and analysis? Or is it native common sense (which is also contextual and experiential)?
Is India’s IQ higher now than it was in 1947 or was it higher in the 18th century than it is now? India was a more developed country then, so was the IQ of its citizens higher?!
@15 Anandaram
1. Are you serious? A variable that, within countries, accounts for a big chunk of achievement should be “highly suspect” when it shows covariation with national income across countries? And in modern knowledge based economies, it is a no-brainer that the quality of the HR matters (which in turn covaries a lot with IQ). High tech companies are filled with high IQ people. Why do you think the US armed forces (since 1920s) and every other modern armed forces uses IQ testing to place individuals in various positions? Although tests like the SAT and GRE and CAT are not strictly IQ tests, they are essentially IQ filters.
2. The whole point about IQ (the fluid intelligence as opposed to crystallized knowledge or what is called achievement) is that it peaks in the early 20s and declines thereafter (gradually, except in the much later years). You need it to learn complex topics/skills, of the sort that has become increasingly common in modern hi-tech societies. Contextual knowledge of the sort that people in specific locales over generations (e.g. tribes in forests) acquire would not seem to demand much by way of high IQ (although the individuals who make various breakthroughs are likely smarter than average). Educational achievement realizes the IQ potential; of course one can stunt this potential via illiteracy or malnutrition. The smart person with 120 IQ (say) can handle typical college courses but would be out of depth in esoteric subjects (say theoretical physics). Its no different than realizing that some people are more talented in certain sports but that they wont realize their talent without exposure to proper training, diet etc. Those who dont have the threshold level of talent (like IQ) wont reach such heights, no matter what the training.
3. The demands of the modern economy are vastly different. They need, in many cases, people with higher IQ (than lower IQ). It is conceivable that, compared to the current context, for ancient economies other factors were more consequential (than the quality of the human resources). As an aside, I’d expect the IQ of developing countries to rise by a few points with improvements in nutrition and environment (this is called the Flynn effect but such increases dont seem to affect the core part of IQ called “g” ) and then plateau. The rise of England as an industrial power has been related to the fact that the upper classes (smarter people) were much more likely to reproduce and survive successfully. So much so that most current day englishmen (regardless of their economic class) have upper class ancestors. This trend has been reversed (as it has in most other countries as well) over the last half century) becaused medical care has become more universal and the lower classes have greater fertility.
Sanjay, if you think IQ is suspect, kindly suggest other variables which have a explanation power equal to or greater than that of IQ. Remember, here we are groping in the dark. There are very few solid established things in social science. We have to see which is the best explanation available to us now. General intelligence factor is one such explanation.
sn gives a good explanation in his previous post.
About the Indian economy near independence, I really don’t know. The politicians of that era seem better, but that was also because all of India was united against identifiable enemies.
About the indian economy before the britishers, I think IQ levels were probably around the same. The markets were freer as traders moved more freely between kingdoms. That makes a lot of difference. The violent disruption of Indian society by the colonisers is responsible for the big dip in our fortunes, but the inability of Indians to rise back to old levels, unlike the jews as a community and japan as a nation can be explained by IQ.
@ Prakash:
How about Freedom as a variable, which is more closely linked to national growth? Instead of IQ. You touched upon it briefly, with your allusions to trade. India has been independent since 1947, but have its people been free? To pursue their goals without obstruction from the state? Remember the Licence-Raj?
And, re: the Jews – how about the Marwaris of India? Have they not done as well as a community?
Cheers
@ SN:
In the first chart of your first link, I find this paragraph:
“Notice how GDP is positively correlated to average IQ. The correlation coefficient is 0.733, IQ explaining 54 percent of the GDP variance. Values this large are rare in social science.”
My understanding of statistics is that R2 of 0.733 is not very high, especially when you can only model accurately only 54% of the time – which indicates a pretty high SD, the number for which is not given. But then, there is this whole caveat at the end about “social sciences”, which I am unable to comment on for accuracy.
In scientific experiments, though, such a high SD would negate the null hypothesis, not prove it as the article seems to suggest. If you can point me to the original raw data/analysis, that would be very useful.
And, then the author moves to a quadratic regression plot, which is even more troubling from an analytical perspective, but more on that later if you can actually point me to the data.
Thanks
“China is one of those countries that has underperformed in recent history, relative to its mean IQ (which is at least 10 points or more higher than the Indian IQ) which is comparable to European countries.”
Freedom as a key variable?
I’d like to know how these IQ tests are designed.. is it like one test for all the countries? Does is already assume that test takers have same level of education and same education board?
A true IQ test should be something that keeps difficulty level on all the questions the same, but it should be oriented towards the profession of the test-taker. A factor that should be considered is that if people do not understand the question, or feel no affinity for it, they might not think about the answer and might just select any option. (i.e. if it is a multiple option kind of test.)
If IQ tests are oriented towards the professions of the test takers, perhaps something could be said….
Regards.
This study is seriously flawed. Please refer to this table:
http://www.isteve.com/IQ_table.htm summarized by Steve Sailer from the Author’s studies. The 4 IQ tests used to compute the IQ of India was in the 1970’s the last being 1979 about 30 years back.
To think India has not made any significant advancement and crowing over the causes is wrong.
As per literacy rate studies between 81 and ’01, the rate jumped from the mid-40 percentile to the mid 60 percentile.
Unicef pegs India’s literacy at 66% in 2007. http://www.unicef.org/infobycountry/india_statistics.html
The study would be a bit skewed if it were to consider a country’s GDP based on natural resources. For example, it cleverly avoids Saudi Arabia, a country with incredible oil resources but poor literacy. Surely with all that Oil Money Saudi GDP cannot be correlated to the intelligence of its people.
So hold your horses folks 🙂
@ DD:
Agree – such “IQ studies” have been used in the past for the dubious use of proving one “race” to be superior to another due to genetics.
Cheers
@ Patriot and DD
Kindly note my second comment which has been quoted by Shantanu in the post.
IQ and the wealth of nations mentions 3 factors explaining the GDP of nations – IQ, Natural resources and Free Markets. I totally agree that free markets are extremely important. I want more free and open markets. An open market is what will prevent educational institutions from turning insular as it happened under the ancient caste system.
Having said that, IQ is an important variable which cannot be ignored. Being in the IT industry, I can testify to the fact that the industry is already facing manpower quality issues.
Linking to Raman Roy’s WSJ article.
http://online.wsj.com/article/SB124443240028093443.html
Quoting from the same.
“It is disappointing to see that only 150 to 200 applicants meet the actual criteria and get recruited when Quatrro advertises and we get 7,500 to 10,000 applications. Technically, a large proportion of the applicants meet the requirements but in terms of competency and capability, they don’t match up. ”
And this if i may mention, is when the IT/ITES industry has not employed more than 20 lakh or so. A country of 11,000 lakh people facing IT manpower quality issues at 20 lakhs.
I’m not saying that the IT industry is any kind of a universal benchmark, but come on.. it is a relatively cozy job with decent pay. Raman should not be rejecting 499 out of 500 candidates in an industry where adding labour is the easiest way of adding revenue.
@ Kalidas – Valid point. Atanu Dey (I think) has pointed out that india is better off with a certification system than a university degree system. a certification system is a test of skill, essentially.
@ sn – I agree that education has to be liberalised. Raman Roy’s article mentions the kind of industry-academia links that are needed.
@ patriot – Yes, the marwaris have done well. So, have the 2 million employed by IT/ITES. But what about an entire nation? 11000 lakh : 20 lakh
About the usage of IQ issues by racists, most IQ believers rank east asians above whites, so i’m not sure how racist the present IQ believing community is.
@ Prakash –
I think the issue is one of how such IQ tests are constructed. I think Bhavananda also touched upon this in his earlier post.
IQ tests give a lot of importance to understanding of maths and logic concepts. How about being able to identify the difference between a leaf from a jamun tree and that of a guava tree? How about being able to identify twenty different types of seeds and being able to tell what are the appropriate conditions under which they can sowed? How about being able to construct a gigantic juice mixer out of a washing machine (lateral thinking)?
The issue is that while maths and logic are very important in particular lines of business and sciences, they are not at all important in others – therefore, to a large extent IQ tests are biased towards those that have an inclination towards maths.
The other problem with all these co-relation/regression tests is that you have to build up databases over periods of time for each country/region – which is clearly absent – so that you can correlate each region’s performance with IQ internally, first, before you get into cross-regional inferences where a lot of other variables come into play. In other words, where is the data for homogenous population groups over time, before we start analysing hetergenous population groups.
And, as far as the numbers are concerned, the numbers will come – I am confident of that – Liberalised India is only 20 odd years old and we already have changed the business models of two global industries (IT Services and Automobiles) – wait for the next 20 years, as innovation builds on innovation. I am pretty optimistic about India.
IQ is not an independent variable but a dependent variable. It depends on education, awareness, health, and a host of other factors. Rather than co-relating IQ to a nation’s progess, the co-relation of education, health etc to GDP is more real. Enough and more studies have been done in this area. Is there therefore anything new in suggesting that a better educated and healthier citizenry contribute more to a nation? Or, is IQ used more for polemics? “Standardised” tests throw up somewhat meaningful results only if the test takers have been all exposed to the same inputs over a long period of time.
@ Sanjay –
Excellent post. Agree, in toto.
@Patriot
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IQ tests give a lot of importance to understanding of maths and logic concepts. How about being able to identify the difference between a leaf from a jamun tree and that of a guava tree? How about being able to identify twenty different types of seeds and being able to tell what are the appropriate conditions under which they can sowed? How about being able to construct a gigantic juice mixer out of a washing machine (lateral thinking)?
—
sn’s response:
IQ can be measured using reaction time for simple decisions (e.g. whether an object appears in a particular part of the screen); the mathematical and logical items we associate with IQ are convenient BECAUSE most people understand them and such items are cost effective for the test administrators. There are completely non-verbal forms of IQ tests suitable for illiterate people. IQ is also called fluid intelligence and can be distinguished from knowledge aka crystallized intelligence. In most contexts, IQ per se is quite useless. What you need is knowledge/skills to perform actions. The key point is that the ability to pick up the skills and knowledge is heavily dependent on the IQ level (which is a potential indicator). With a basic education (school), the various entrance exams, in effect, act as IQ filters. We dont want or need officers in the Indian military who are below (say) 115 in IQ. Now it is known scientifically that fluid intelligence or IQ is mostly genetic but its development can be hampered by child abuse (malnutrition). There is no known technique to permanently boost IQ in children or adults (temporarily one may be able to reduce or increase via drugs; for example one who is taking the stimulants in energy drinks may find their capacity to do mental work boosted).
regarding the tasks
distinguishing between 2 types of leaves; Anyone who is not brain damaged has the capacity to learn to make such distinctions. However those with higher IQ may be able learn such distinctions faster and create a big corpus of visual knowledge. Primary example: Doctors have stringent equivalents of IQ tests and their training requires assimilation of vast quantities of visual and verbal facts and the ability to think about them and reason on the fly. To be sure there may be non-general intelligences as well for those who go on to be very good doctors.. but in no case can they be below the threshold for this profession. As Doctors age, their IQ (like everyone elses) declines (brains shrink etc) but their performance need not go down because the knowledge accumulated since their younger days (thanks to their high IQ) remains in a very usable form.
distinguishing between various seeds and deciding which is good for sowing.. This is clearly a problem in pattern recognition. All things being equal, a higher IQ farmer will have assimilated and be able to use such knowledge better than a lower IQ farmer. Obviously such ability is less complex than that required for a medical degree.
Juice mixer from washing machine: Lateral thinking of the sort indulged in by inventors requires both IQ and specific experiences and perhaps other talents as well as a willingness to deal with repeated failure. There are other components besides IQ but even inventors, on average, are very smart people (besides their other qualities).
The importance of IQ on homogeneous populations has already been done and the research goes back 100 years. Bottom line is that general fluid intelligence matters and no one has found another variable that has the same amount of importance. It is the cross-group analyses that are new.
Your confidence about IT Services and Autos may be misplaced. What if the talent pool is drying up? Will the growth projections pan out? With their advantages in IQ, shouldnt the logical conclusion be that China-India gap will increase, not decrease? Maybe there is a more optimistic scenario. But I wouldnt assume it as a given.
IQ can inform decision making, primarily as an independent variable. Which means we need to assess it widely. As research progresses maybe robust interventions may be devised (at the moment, marrying someone who is smart seems to be the only sure fire technique) to enhance IQ and to arrest its decline in aging (i.e. IQ as a dependent variable). And more importantly, how to best use IQ potential to convert into knowledge/skills that matter for the economy. IQ is distinct from health indices. Health is amenable to known interventions as is basic education (literacy). But advanced education is very sensitive to IQ and its the advanced education that matters most for innovation and growth.
As an aside, I dont want to give the impression that IQ only matters for high-tech professions. It matters across the board. Consider the following thought experiment: A group of high-schoolers independently, without supervision, set up a fast food stand in a sports stadium to earn some money for their group during a well attended sports event. Group A: The group is made up of 10 students, average IQ 95. Group B: The group is made of 10 students, average IQ 110. Which fast food stand will do better in terms of profits for the day? There is an overwhelming probability that group B will outperform group A. Even simpler tasks like cleaning, serving in restaurants, require IQ and can benefit from it provided the workers are not demotivated (bored). Countries like China and Japan have very well trained workers in their service sector; yes, to some extent one can point at their culture, but one cant ignore tha the relatively higher IQ of chinese and japanese workers play a part, allowing them to innovate in their relatively simple jobs, as required.
@ SN –
Please do not think that I am saying that a low IQ is better than a high IQ. Far from it. And, I am also in complete agreement with you that if India has to progress, we need to increase mean IQ and devise programs that help us achieve this. Also, I fully agree with you that a person of higher IQ will do even a repititive job more efficiently than a person with a lower IQ.
But, I am questioning the specific captioned study, which links mean IQ to national economic growth, given the statistically high standard deviation. If you have studied probability curves and confidence intervals, I am sure that you will agree that a model than can explain ONLY 54% of the differences is not a very good model.
Second, I have not seen data for 100 years of IQ studies on homogenous groups – if you can point me to the relevant sources for me to study, I would be grateful.
Third, I am saying that standardised IQ tests, as designed by Western Universities, will always lead to lower IQ scores for primarily agrarian societies, as compared with primarily post-industrial societies. This is a design flaw of such tests. If you really want to compare apples to apples, which is the key to good statistical analysis, one needs to minimise such flaws. But then, you do not get to apply a standardised test across heterogenous populations.
RE: IT services and autos – I am not predicting the future for them, I am just saying that they have ALREADY changed global business models. Whether they can continue to do so in the future will certainly depend on our talent pool.
It will also depend on Indi’s ability to attract people from the global talent pool to come and work in India for Indian companies – do not neglect this factor. After all, more than a third of technology patents from Silicon Valley have Indian names attached to them, which begs the question about whether the success of US technology is American or Indian.
We also certainly need to completely rehaul our education system and policies.
RE: India vs China – I am more sanguine than you about the gap, because I am a big believer in the Freedom variable. There is a significant probability that China will go the Soviet Union way – so, I am not that worried.
And, what is China after all? What is the innovation quality of China? They are just the world’s largest factory and the biggest thieves of intellectual property. How far will that take them without true innovation? Why did the Chinese motorcycles not succeed in India? The Chinese growth has been driven by FDI – most of their manufacturing assets are owned by foreigners.
India on the other hand has been driven by FII and domestic investment – we own our companies, some of whom have become leaders in their space. Much more to do, lots more to travel – but our base is so much more solid than China’s. It is based on Indian innovation and ideas.
So, no, I am not that worried about China from an economic standpoint. I worry about them from a military standpoint.
On a lighter side:
“Group A: The group is made up of 10 students, average IQ 95. Group B: The group is made of 10 students, average IQ 110. Which fast food stand will do better in terms of profits for the day?”
If Group A has brawn on its side, as brawn seems to be inversely co-related with IQ, then they should be able to win easily in an unsupervised contest!
Cheers
@Patriot: Your comments are interesting because they give me an opportunity to clarify.
1. I am glad we are in agreement on the importance of IQ which is also termed as fluid intelligence and is thought to be identified by the “g” factor which appears to have strong genetic and its neural underpinnings are now being understood.
2. You think that explaining 54% of the variance is not impressive. I agree that 46% remains due to other factors (e.g., natural resources, historical factors etc.). But as a social scientist I am truly amazed that a single variable can explain so much of the variance. A model doesn’t need to explain all the variance for it to be useful or important. Most famous medical treatments (e.g., the use of Aspirin as a thinner to reduce strokes and heart attacks) were based on studies that effectively “explained” less than 10 percent of the variance. It doesnt matter because of the importance of the outcome (saving lives). Similarly there is no doubt that seat belts save lives. But if you sketch a 2 x 2 table you will find that nothing happens to many people who dont wear seat belts and some of those who do wear seat belts die in crashes. So from a variance point of view, the effect of seatbelts can seem small. But in fact, they do save lives. In America, Seat belts are the most effective safety devices in vehicles today, estimated to save 9,500 lives each year. From a variance point of view, this amount is miniscule considering the billions of passenger trips. So dont confuse effect size (in this case the percent of variance explained) with the importance of the effect.
3. In any case, this type of research is in its infancy and will use better measures of IQ as it moves along. It is unfortunate that such research is mostly considered politically incorrect (because it leads to the conclusion that human groups differ!, a fairly obvious fact given that human groups have been isolated from each other for hundreds or thousands of generations). In my view, and in consonance with the blog name, truth matters. One can be fully human and have a low IQ. Whats wrong with that? Or one can be inhuman and have a high IQ. IQ like any other trait has a natural variation.
4. Read “The Bell Curve” by Murray (the data are mostly american) Somebody needs to write a similar volume thats relevant to Indian samples. Check Amazon or Wikipdiea.
4a. In response to the growing controversy surrounding The Bell Curve, the American Psychological Association’s Board of Scientific Affairs established a special task force to publish an investigative report on the research presented in the book.[4] The final report, titled Intelligence: Knowns and Unknowns, is available at an academic website. Some of the task force’s findings supported or were consistent with statements from The Bell Curve. They agreed that:
* IQ scores have high predictive validity for individual differences in school achievement.
* IQ scores have predictive validity for adult occupational status, even when variables such as education and family background have been statistically controlled.
* Individual differences in intelligence are substantially influenced by both genetics and environment.
* There is little evidence to show that childhood diet influences intelligence except in cases of severe malnutrition.
* There are no statistically significant differences between the IQ scores of males and females.
5. It may be true that Chinese norms for intellectual property are different but it does take intelligence to copy at the rate they do, does it not? Why are foreigners investing there? Are they all stupid? It would be shortsighted to conclude that Chinese are only clever but not innovative. They are traders and are buying up American companies (eg. Hummer from GM). In the present day economic and military prowess are closely tied together. You cannot have a strong military without the supporting economy and technology.
6. Last point. All other things being equal, within a racial and gender group, healthy (tall and strong) individuals are more intelligent, on average and longer lived than individuals who are shorter and weaker. By the way, that fast food example was not hypothetical (I actually saw the high IQ kids outcompete a normal group by a large margin..I was there as a volunteer parent)
Amazing amount of discussion.
Nutrition is the key driver of what we are seeing in India. India has the highest population of cretins (severe mental retardation) in the world due to prenatal deficiencies, in particular iodine. A small multivitamin given 4-5 times a week to childbearing women will likely increase this average significantly. There have been studies on this but they don’t see light of day.
I have suggested this to a number of literacy organizations, that they could just as easily distribute a multivitamin to the mothers of kids.
And of course controlling the rampant growth of population will also go a long way.
@ SN –
I think you are not viewing the statistics part of this discussion correctly – maybe, you do not have a background in statistics, and hence the confusion on what is the key sample/population to consider and what is Significant (key word in statistics) Correlation and what is not. If you are trained in statistics, then you are deliberately confusing the issue.
RE: Pt. 2 – When you do a single variate analysis, with IQ as the independent variable (given) and National productivity as the dependent variable, and run a regression analysis – a 56% prediction capability is very poor, statistically. In the sciences, you would not give any credence to such a model. I am not familiar with testing methodologies in social “sciences” (more appropriately called, humanities or liberal arts, rather than science) and I do not know if the bar is so much lower in these streams.
So, since single variate analysis fails to come up with a robust model, then the author moves on to adding free markets and natural resources. Now, the value of natural resources is determined by trade and demand-supply gaps of the said resource at a particular point in time – it has no intrinsic value by itself. So, how can you ascribe any kind of “physical values” to natural resources at a point in time and how can you call it an independent variable – your analysis will be seriously flawed.
And, free markets? How do you assign numbers/values to that? I would be interested in knowing this methodology. And, what is a free market? One that allows free trade in goods? How about services and allowing free immigration as part of free markets? Too random and complex a variable to be even considered as an independent variable.
So, that is as far, as this captioned study is concerned.
RE – Aspirin – I do not know where you get your data from – but, Aspirin was approved as a blood thinner by the US FDA, after a series of tests in populations with this SPECIFIC problem. Maybe, the correlation is only 10% with the entire US population, but that is IRRELEVANT. For the affected population, with significant blood clotting history, it was proved with a 97.5% confidence interval, that use of aspirin helps this problem. This hypothesis was further substantiated by the use of control groups, who were given placebos. So, please, do not compare the statistical quality of drugs testing procedures with “social experimental” regression analysis. The former is significantly more rigorous.
RE – Seatbelts – have you head of the series of tests carried out by US and Japanese car manufacturers using crash-test dummies? This simulated road conditions as to the effects on the drivers and front seat passengers of head-on collisions and other types of collisions. Such tests proved, again within confidence intervals of more than 99%, that the use of seat belts can save lives or lessen injuries in the case of a head-on collision. Once again, the tests had control groups where no seat belts were used. So, this is scientifically proven data. These same manufacturers then went on to add side-impact bars in cars and air-bags to save lives in the case of a collision. Again, supported by reams of data and testing.
RE: Pt. 3 – I do hope that IQ testing moves along from its current infancy and solves this issue of design flaws, etc. It is a fascinating area of research, despite its current limitations.
RE: Pt. 4 – will read the Bell Curve – thank you for the reference.
RE: Pt. 5 – we differ a lot in our assessment of the Chinese – this can not be resolved by debate on this forum, but by time. So, I will pass on further comments on this topic.
RE: Pt. 6 – Ah, so it was not an unsupervised contest after all! Not a free market, but a nanny state, eh?
It has been good swapping ideas with you, SN.
Cheers
Pt 6 of SN’s June 17th post:”….healthy individuals (tall & strong) are more intelligent on average,…” while in his June 16th post, he says that “IQ is distinct from health indices” (last para):) While no one is making the case that health indices and IQ are identical, one is certainly making the case that health and education are two variables that impact IQ making it a dependent variable or a resultant function and not an independent one. Acknowledging that the field of IQ-GDP studies is in its nascency is a relief! Drawing conclusions from the studies therefore is extremely premature.
Meanwhile, how does one factor in “multiple intelligences” or “emotional intelligence” into this? In my view, these are extremely complex and complicated issues that need enormous research across & within populations over long periods of time before anything resembling a conclusion can be drawn. The fiascos on Wall St have demonstrated how apparently well understood & researched quantitative models failed (think LTCM for starters!). An IQ-GDP study is not just about finance & economic data unlike what the Wall St quant theorists do but socio-cultural-genetic-economic data thereby increasing the complexity by many orders.
@ Sanjay –
In defence of LTCM, the event that brought these PhDs down was a 16-sigma event – it is not possible to model for these events.
That is why I was constantly stressing about the confidence intervals and Standard deviation scores of the quoted study.
Cheers
@ Sanjay – are you the same guy who was associated with JumpStartup Ventures?
@ Patriot
It has been good exchanging views with you.
On a parting note, I would like to mention that both you and I want the best for India. I was always optimistic for India, before reading this data. Suddenly a lot of questions that troubled me came with a new answer. I have asked for better data here, lets hope we catch the eye of someone in a position of power/wealth.
You are pro-markets and so am I. But a free market implies lesser opportunties for people to continue in their traditional occupations as consumers’ taste shift. This flexibility and learnability is a more important variable than intelligence alone. Let’s hope we get good data here also. But SN’s comments imply an easier transition for those with higher IQs. The issue does not diminish.
I look upon this issue as a risk-mitigator. If in the next 15 years or so, India meets nutrition and literacy targets and still remains behind, then we would have lost the 15 years where we could have prepared for such a scenario.
@ SN
You’ve been a star on this thread. I just hope that more people in power understand the importance of the IQ question and get more data asap.
@ Sanjay
No one denies that better data is needed. But when studies in other countries indicate the importance of this variable, we should not turn away from what it might mean.
A parting rant
– The standard of commercial cinema and television might be a good indicator of the intelligence of an audience.
– Diasporas are self selected and are not representative of the population they emerged from. If one may say, the indian brain drain diaspora can safely be assumed to have a greater average IQ than India. Americans competing against the 99 percentile indian are afraid. they might have very little to fear from the 50 percentile indian.
– Simplicity in rules regarding value creation is a must. Bureaucrats who are themselves intelligent should create rules which can be understood by the common man.
– Libraries can be a big boost to the capabilities of the community. I wonder why philanthropy is lacking in this regard in India.
My last post on this thread. Thanks to all.
@Nishka 33
That (Minerals and Vitamin supplements) was the #1 recommendation of the folks at copenhagenconsensus.com in terms of impact per dollar invested. Incidentally investing in mitigating “global warming” fared right at the bottom (i.e., a waste of money).
@Sanjay 35
—
Pt 6 of SN’s June 17th post:â€â€¦.healthy individuals (tall & strong) are more intelligent on average,…†while in his June 16th post, he says that “IQ is distinct from health indices†(last para):) While no one is making the case that health indices and IQ are identical, one is certainly making the case that health and education are two variables that impact IQ making it a dependent variable or a resultant function and not an independent one.
—
This effect (taller people being smarter) is a relatively weak one (explains a miniscule part of IQ variance, perhaps some fraction of a percent) within modern populations. In ancient societies, the effect would have been larger because food and health care were not widely available. Max potential height is completely genetically controlled (diet does matter but its only allowing this expression). Similarly IQ (or the core part of it) is genetically controlled (and various other factors like malnutrition or abuse only control its expression). For individuals in modern societies with access to food and health care, IQ appears to be set in stone. The “heritability” of IQ increases with age. That is, in adulthood and beyond, the control of genes on IQ increases and the “g” factor appears to be a global parameter of the brain (e.g.,efficiency of neural conduction, thickness of white matter etc.), not something that is localized. East Asian kids from Vietnam and other places who experienced horrible early childhoods were adopted in American homes and have average IQs that are higher than the White mean (i.e. even their early privations didnt depress IQ).
Anyone who figures out a cost effective and safe way of increasing IQ and patents it will become a multi-billionaire. It would be like boosting the clock speed of the CPU. IQ doesnt seem to be under the control of a single or small set of genes (ruling out the high-tech style of genetic engineering for now.. the low-tech style namely marrying people who are not close relatives and who are high IQ is one that has worked well.. If people choose to reproduce using high IQ sperm donors we are in completely new territory.. Those who utilize such expensive services (eg. Jodie Foster) tend to be among the elite).
The point remains that we don’t (as yet) know of ways to boost IQ. We do know of ways to not stunt it (Pakistan and the middle east suffer a low IQ burden due to the widespread practice of marrying close relatives which regresses IQ) and this still remains relevant to the impoverished segments of the world. IQ is naturally placed to play a causal (exogenous) role in various models, explaining outcomes (achievements) which are also influenced by other exogenous factors, unrelated to IQ such as learning techniques, incentives, market demands, natural resources and so forth (non IQ genetic components such as having the temperament to persist or be optimistic are likely to play a role as well). If IQ can be readily manipulated through treatments, then it will certainly be a controllable effect as much as it is a cause. But that day is not in sight.
@ Patriot (various comments about multivariate modeling, experimental design etc.)
We can certainly discuss the issues you bring up. But it would be a digression and I can assure you that I appreciate your example about the crash test dummies and I suspect that we are talking past each other regarding this aspect (importance vs. effect size). I would also urge caution with reference to the rigor of FDA drug studies (they are not as infallible as you perceive them to be). I was referring to the original study on the doctors sample that showed that Aspiring could reduce deaths due to heart attacks (yes, looking at those who didnt have heart attacks is very relevant in the 2 x 2 table; the point about Aspirin having blood thinning effects being almost certain is a separate one which I dont dispute). The point of the Lynn and subsequent research was to highlight IQ as potentially a very important exogenous factor. They are giving the equivalent of an existence proof. My interest isn’t really in the “other”, undoubtedly real, factors that would carry the model closer to the 100% mark. If you do want a model thats closer to the 100% mark (but which doesnt really advance the overall line of thinking very much), I present the following:
Take 100 well identified Indian endogamous groups. Measure their mean IQs. Regress these mean IQs with some measure of educational achievement. The correlation will be in excess of 0.8, possibly in excess of 0.9.
No, I was being supervised by my daughter (she did the more taxing job at the cashiers.. I just handed out the drinks and pizzas, a more menial job I am suited for). Speaking of which, the most amazing Indian Grocery Store that I have been to is one Patel Brothers near Princeton, NJ (near a town called North Brunswick).. The girls at the counter (patel store.. so probably gujjus) process items at superhuman speed. Havent seen such efficiency anywhere, and the prices/quality are really good. Clearly if such people were typical in India, we dont need to be concerned about the future.
@Prakash.. Appreciate your appreciative and insightful comments
Prakash & SN & Patriot,
I have three main contentions.
i) IQ is a dependent variable and therefore one needs to understand what it depends on. It is well understood that IQ depends on education, health, awareness & exposure to ideas & concepts as well as on genes (which in turn are shaped by the environment over millenia). That education & health of a citizenry are positively corelated to a nationa’s well being is well understood, documented and researched. So what’s the big hoopla about IQ-GDP being corelated? Co-relations don’t imply causality in any case! Getting lost in discussions about models is meaningless in my view without conceptual clarity.
ii) What exactly does IQ measure? If it measures basic math and logic concepts as has been argued, it presupposes that the sample has been exposed to some education/awareness of math and logic. Is someone who hasn’t been exposed to basic math and logic, really unintelligent or “dumb” or just uneducated? The speed with which someone picks up concepts is perhaps a measure of “intelligence”.
iii) With intelligence itself being a subject matter of great debate, what with Goleman’s “emotional intelligence” (http://en.wikipedia.org/wiki/Emotional_intelligence) and Gardner’s “multiple intelligences” (http://en.wikipedia.org/wiki/Theory_of_multiple_intelligences) being researched, I think taking an IQ test as the primary measure of intelligence is highly suspect. One has to understand how the test was constructed, the assumptions, and the sample type and size it was run.
iv) To Patriot, yes, I’m the same. And you are?
Sanjay
Iodine correlation with IQ. Research will show that India is a highly iodine deficient country. That coupled with fluoride overexposure is a deadly combination.
Japan has the highest consumption of iodine via seaweed and one of the lowest incidences of reproductive cancers, cretinism etc.
There is a reason why in ancient times people would go to the sea to get seaweed and fish. Additional sources for vegetarians are green veges, milk products, sesame, soya.
Below a study shows the dramatic effect of iodine supplementation
http://www.ncbi.nlm.nih.gov/pubmed/15734706
Utterly fascinating…what more can I say?
Hope to read through all the comments this weekend. Thanks Prakash for triggering this thread.
Just finished a read through…Lot of stuff to digest so will certainly re-visit this thread when I have a few moments of calm…
I also noticed that the discussion has moved away (somewhat) from a debate about voting patterns (and whether they can really be explained by IQ) to what is IQ, how can it be measured effectively (can it?) and what factors determine a high or a low IQ…
But I am not complaining. Lots to learn!
I have read the comments about the low of IQ of malnourished Indians which is undoubtedly going to have an impact on the national figure. If there is one thing that IITians can profitably turn their minds to is dealing with the iodine deficiency of Indians: for all the sins, acts and omissions of Indian governments this is one problem that can be quickly eradicated. Action rather than talk is going to matter on this problem.
There is one trait that is recognised by British politicians in the UK about Indians. In political matters, Hindus do not particularly have much of a view point except that which has been assiduously chanelled. The channels gate-keepers are self-styled community leaders who have used them advance themselves in to the bargain. Although the vote is personal to each Hindu, but at election times these community leaders under the arrangements will deliver up the vote in disregard of their own best interests. Because of this and in comparison with Muslim issues which the British government treads very cautiously, Foreign Secretary Milliband was able to go to India and espouse his support for Pakistan’s case on Kashmir.
The Hindu people in the UK are not malnourished in the way Hindu voters in India, unless their tendency to vegetarianism is having an adverse impact on the brain. I can afford to be totally frank because India’s vegetarian population has been reduced to 40%.
Shantanu said at his last meeting in London that those in attendance need to be role models. It would be the height of folly and a betrayal of India if you were to follow the example of the Indians I described above who choose not to think for themselves but follow blindly. This would require you to express your displeasure and thanks in a way most appropriate to your circumstances. You should bear in mind that the present government and their followers are Stalinist in all that they do. Nehru’s socialism was predicated on ensuring his rule and ideology continued after him. It may be vanishing before our eyes in the rest of the world, but in India it has found fertile ground for it to continue as long as we remain prisoners of our past.
More compelling evidence that IQ matters even when illiteracy and malnutrition are not problems.
Schooling, Cognitive Skills, and the Latin American Growth Puzzle
Eric A. Hanushek, Ludger Woessmann
NBER Working Paper No. 15066
Issued in June 2009
Economic development in Latin America has trailed most other world regions over the past four decades despite its relatively high initial development and school attainment levels. This puzzle can be resolved by considering the actual learning as expressed in tests of cognitive skills, on which Latin American countries consistently perform at the bottom. In growth models estimated across world regions, these low levels of cognitive skills can account for the poor growth performance of Latin America. Given the limitations of worldwide tests in discriminating performance at low levels, we also introduce measures from two regional tests designed to measure performance for all Latin American countries with internationally comparable income data. Our growth analysis using these data confirms the significant effects of cognitive skills on intra-regional variations. Splicing the new regional tests into the worldwide tests, we also confirm this effect in extended worldwide regressions, although it appears somewhat smaller in the regional Latin American data than in the worldwide data.
Adding these links here although I need to read the articles again to see if they are relevant, Regardless, they are controversial & noteworthy, especially coming from the ‘left’: Kathryn Paige Harden: ‘Studies have found genetic variants that correlate with going further in school’.
Also see: Can Progressives Be Convinced That Genetics Matters