Monday, May 30, 2016



Female computer science professor blasts the sexist geeks she says show 'staggering' bias against women

If there is prejudice against women in computing, it is really POSTjudice -- as women are rarely good at it and it shows.  I am myself a computer programmer -- as is  my son -- and I have taught it at university level. In my observation only the top 2% in IQ can do the harder types of programming.  I still use FORTRAN and my son uses C#.  Many people find such languages hard but for us they are a doddle.

And because the IQ distribution among females is leptokurtic, there are many fewer women than men in that IQ range. I used to run Sydney MENSA for a number of years and it was notable how few female applicants passed the test.  I have met some very good female programmers.  It was a woman -- Gail Sonkkila -- who taught me FORTRAN.  But they are necessarily rare, given their IQ distribution

So Uschi below may be a good feminist but she is no social scientist

UPDATE:  Just to prove I am not a Dodo, I should perhaps mention that my son is NOT a computer programmer.  He is a "software engineer".  But he is a good one.  Recently his firm wanted to import some hardware from China.  But it needed programming.  So they sent their CIO over there to solve that -- accompanied by their hotshot "engineer" -- my son J.  He succeeded. He can of course code with great facility but what he really has to offer is problem-solving ability -- aka IQ




Sexist geeks who built a prototype of an 'enhanced human' which was entirely male have been lambasted by one of Britain's leading computer scientists.

Ursula Martin, a professor of computer science at Oxford University, said it was a symptom of the 'staggering sexism' in the industry.

She said there was still an anti-female bias and conjured up a picture of male academics like the characters of Sheldon Cooper and Rajesh Koothrappali in The Big Bang Theory, who struggled to engage with women or understand the female viewpoint.

The Times reported that Prof Martin told an audience at the Hay Festival she was shocked to discover some of the attitudes of male computer scientists when she visited the Microsoft research laboratory in Cambridge this week.

She said: 'I was absolutely staggered at the sexism on show.'

Prof Martin said there was a symposium on artificial intelligence and a presentation was given about the 'vision of what an enhanced human would be'.

Prof Martin pointed out the absence of female attributes in the new, advanced human to the person who made the presentation and he had simply responded: 'I suppose'.

A Microsoft spokesman told Mail Online: 'At the Artificial Intelligence Symposium held at Microsoft Research in Cambridge on May 26, there were many external speakers from across academia.

'Contrary to some media reports, the only Microsoft employees who presented at the symposium were women. 'Microsoft is committed through a range of programs such as Make What’s Next to increase the number of women in Computer Science.'

Prof Martin was at the Hay Festival to discuss the contribution to science of Ada Lovelace, a 19th century visionary who foresaw the existence of computers.

SOURCE

Monday, April 18, 2016



Are high IQ people socially inept?

Bruce Charlton has a long article (excerpted below) which says that they are.  It is of course a common stereotype but Charlton gives reasoning and references to back up his claim.  Going right back to the studies of Terman in the 1920's, however, research has tended to show that high IQ people are in fact socially more successful, so there is a conflict there.  I am not familiar with all the references Charlton uses but on the issues I am familiar with, I think every claim Charlton makes has been reasonably disputed -- his claim that religious people and conservatives are dumb, for instance, so I doubt that further reading would take me far.

So I think it might be useful for me to offer some thoughts that could explain what underlies Charlton's impressions.

I think that he is basically confusing high IQ people and academics -- or maybe also people with high academic qualifications.  But academics are only one subset of high IQ people -- and probably the least generally competent subset.  There's not much money in academe so really bright people tend to look more to the world of business -- with Bill Gates being the icon of that.  And there are some high IQ people who are not ambitious at all -- becoming butchers, mechanics etc.

One thing we can learn from academics, however, is the nature of eccentricity. Academics are of course notoriously eccentric.  So why is that?  It is mainly that their high IQ causes them to see the world differently from others.  What seems strange and inexplicable behavior to mainstream man actually seems perfectly logical and reasonable to someone whose vision encompasses far more of what is going on in the world.  The high IQ person sees many more influences bearing on a given decision so must sometimes come to decisions that perplex those who have not taken so much into account.

High IQ is however a solver of almost all human problems so the non-academic high IQ person will see why people are coming to what he sees as wrong or sub-optimal decisions and will deal with that in some way  -- taking time to explain himself, pretending to go along with the herd or some other strategy.  So the non-academic high IQ person will be much less likely to be seen as strange.

But let me reiterate that High IQ helps solve of ALL problems so it can even generate social skills or at least an approximation to social skills.  The high IQ person should in fact be socially insightful rather than socially inept.

Anecdotes prove nothing but they can be enlightening nonetheless -- so let me describe briefly a high IQ lady I know.  She is one of the most popular people I have ever met.  Faces light up all around the room when she walks in.  How come?  Because she uses her brain to take an interest in other people. Because she understands them, she talks to them in terms of what interests them.  So people find her a very sympathetic person and like her for it.  She uses her IQ to smooth social interactions and does very well at it.  Almost anyone she meets wants her for a friend. She did at one time gain considerable academic distinction but did not persevere with it.  She fell in love with an English poetry academic instead.  What a fine woman!

There are many uses for a good brain and acquiring and using social skills is one of them

Another woman I have known since she was a child has made an unending string of good decisions in her life that resulted in her being very highly paid at one stage.  But far from wanting a career, she just wanted a calm and peaceful life so retired very early to a green and pleasant place in the country and now has a big garden that feeds her and her family plus a sheep paddock that yields sheepmeat from time to time.  She lives the sort of life that greenies (and urbanites generally) tend to idealize.  But she would never show up on any list of anything much, let alone a list of high IQ people -- and that is exactly how she likes it. So there are many ways of using a good brain.

And the way academics use their brain is to focus on highly abstract things.  And academe is highly competitive.  So that focus has to be severe.  Taking an interest in people is just not a priority.  So people see them doing things that they don't understand and dismiss them as eccentric.  But the academic doesn't care.  He uses his brain in a way that pleases him and notices people only minimally.

A rather striking example of academic specialization is that it seems very rare for someone to be successful in both academe and in business.  Aside from myself, I know of only one other -- and he ended up in jail.  Because of the general usefulness of high IQ one might have expected that academics would be good in business too.  So it could well be that the high IQ people who are attracted to a life in academe are precisely those high IQ people who have inadequate personalities or who possess some other social limitation or emotional handicap.

So why do high IQ people tend to reproduce less? A glib answer would be that reproduction uses other organs than the brain but there does seem to be a rather deplorable effect there.  A lot of the problem lies with the educational system.  Because they are good at it, high IQ people mostly stay longer in education than others.  And a modern education has even managed to convince some of its victims that having children is bad for the environment etc. And there is no doubt that the emphases on feminism and homosexuality in a modern college education also militate against reproduction.  So it seems unlikely that reduced reproduction is an effect of high IQ per se.

It could also be argued that although they have fewer children, high IQ people invest more in them -- so gaining quality at the expense of quantity.  And those who know the story of Gideon (See Judges chapters 6 to 8) will know that it is not always quantity that wins the day.  Would you rather have your descendant  being the army officer directing operations from the rear or would you rather him being cannon fodder in the front lines?  Genetic survival can be more than numbers



On the whole, and all else being equal, in modern societies the higher a person’s general intelligence (as measured by the intelligence quotient or IQ), the better will be life for that person; since higher intelligence leads (among other benefits) to higher social status and salary, longer life expectancy and better health. However, at the same time, it has been recognized for more than a century that increasing IQ is biologically-maladaptive because there is an inverse relationship between IQ and fertility. Under modern conditions, therefore, high intelligence is fitness-reducing.

In the course of exploring this modern divergence between social-adaptation and biological-adaptation, Satoshi Kanazawa has made the insightful observation that a high level of general intelligence is mainly useful in dealing with life problems which are an evolutionary novelty. By contrast, performance in solving problems which were a normal part of human life in the ancestral hunter–gatherer era may not be helped (or may indeed be hindered) by higher IQ.

As examples of how IQ may help with evolutionary novelties, it has been abundantly-demonstrated that increasing measures of IQ are strongly and positively correlated with a wide range of abilities which require abstract reasoning and rapid learning of new knowledge and skills; such as educational outcomes, and abilities at most complex modern jobs. Science and mathematics are classic examples of problem-solving activities that arose only recently in human evolutionary history and in which differential ability is very strongly predicted by relative general intelligence.

However, there are also many human tasks which our human ancestors did encounter repeatedly and over manifold generations, and natural selection has often produced ‘instinctive’, spontaneous ways of dealing with these. Since humans are social primates, one major such category is social problems, which have to do with understanding, predicting and manipulating the behaviours of other human beings. Being able to behave adaptively in dealing with these basic human situations is what I will term having ‘common sense’.

Kanazawa’s idea is that there is therefore a contrast between recurring, mainly social problems which affected fitness for our ancestors and for which all normal humans have evolved behavioural responses; and problems which are an evolutionary novelty but which have a major impact on individual functioning in the context of modern societies. When a problem is an evolutionary novelty, individual differences in general intelligence make a big difference to each individual’s abilities to analyze the problem, and learn to how solve it. So, the idea is that having a high IQ would predict a better ability in understanding and dealing with new problems; but higher IQ would not increase the level of a person’s common sense ability to deal with social situations.

IQ not just an ability, but also a disposition

Although general intelligence is usually conceptualized as differences in cognitive ability, IQ is not just about ability but also has personality implications.

For example, in some populations there is a positive correlation between IQ and the personality trait of Openness to experience (‘Openness’); a positive correlation with ‘enlightened’ or progressive values of a broadly socialist and libertarian type; and a negative correlation with religiousness.

So, the greater cognitive ability of higher IQ is also accompanied by a somewhat distinctive high IQ personality type. My suggested explanation for this association is that an increasing level of IQ brings with it an increased tendency to use general intelligence in problem-solving; i.e. to over-ride those instinctive and spontaneous forms of evolved behaviour which could be termed common sense.

The over-use of abstract reasoning may be most obvious in the social domain, where normal humans are richly equipped with evolved psychological mechanisms both for here-and-now interactions (e.g. rapidly reading emotions from facial expression, gesture and posture, and speech intonation) and for ‘strategic’ modelling of social interactions to understand predict and manipulate the behaviour of others. Social strategies deploy inferred knowledge about the dispositions, motivations and intentions of others. When the most intelligent people over-ride the social intelligence systems and apply generic, abstract and systematic reasoning of the kind which is enhanced among higher IQ people, they are ignoring an ‘expert system’ in favour of a non-expert system.

In suggesting that the most intelligent people tend to use IQ to over-ride common sense I am unsure of the extent to which this is due to a deficit in the social reasoning ability, perhaps due to a trade-off between cognitive abilities – as suggested by Baron-Cohen’s conceptualization of Asperger’s syndrome, including the male- versus female-type of systematizing/empathizing brain. Or alternatively it could be more of an habitual tendency to over-use abstract analysis, that might (in principle) be overcome by effort or with training. Observing the apparent universality of ‘Silly Clevers’ in modernizing societies, I suspect that a higher IQ bias towards over-utilizing abstract reasoning would probably turn-out to be innate and relatively stable.

Indeed, I suggest that higher levels of the personality trait of Openness in higher IQ people may the flip-side of this over-use of abstraction. I regard Openness as the result of deploying abstract analysis for social problems to yield unstable and unpredictable results, when innate social intelligence would tend to yield predictable and stable results. This might plausibly underlie the tendency of the most intelligent people in modernizing societies to hold ‘left-wing’ political views.

I would argue that neophilia (or novelty-seeking) is a driving attribute of the personality trait of Openness; and a disposition common in adolescents and immature adults who display what I have termed ‘psychological neoteny’. When problems are analyzed using common sense ‘instincts’ the evaluative process would be expected to lead to the same answers in all normal humans, and these answers are likely to be stable over time. But when higher IQ people ignore or over-ride common sense, they generate a variety of uncommon ideas. Since these ideas are only feebly-, or wholly un-, supported by emotions; they are held more weakly than common sense ideas, and so are more likely to change over time.

For instance, a group of less intelligent people using instinctive social intelligence to analyze a social situation will presumably reach the same traditional conclusion as everyone else and this conclusion will not change with time; while a more intelligent group might by contrast use abstract analysis and generate a wider range of novel and less-compelling solutions. This behaviour appears as if motivated by novelty-seeking.

SOURCE

Tuesday, April 5, 2016



Religion and intelligence

Edward Dutton has kindly just sent me a PDF of his 2014 book under the title above.  It is a very comprehensive and research-based treatment of its topic.  And I will mention his most striking finding straight away:  Churchgoers are just as intelligent as atheists.

The big problem with research in the area is defining religion.  There are all sorts of religions.  A major religion these days is "Belief in God only".  Does that count for anything? And what about Leftism?  It has many of the characteristics of a religon. Should it be included? So we cannot be too surprised to note that the various research studies show no uniform definition of religion. 

And even people of the same religion may have very different beliefs.  A Catholic who attends mass regularly will usually have much different beliefs than one who has not been to mass for years.  So direction of belief and strength of belief need to be sorted out too.

I can think of some solutions to those problems but none of the studies so far have addressed them adequately, as far as I can see.  But, out of what's available, the best indicator of religious belief would seem to be church attendance, or "religious practice" more broadly.  It too does of course have its weaknesses.  It is very well known that some people attend church for social rather than religious reasons.  They may even go just for the coffee and cake afterwards.  But there can surely be very few church attenders who are totally non-religious.  And when we think of religious people, it is surely churchgoers whom we are most likely to have in mind.

Table 7.2 on p. 180ff of Dutton's book gives the correlations between churchgoing and IQ.  Most are very low indeed and all but one are less than .20.  And a correlation of .20 reflects only 4% common variance between the two factors, so is negligible.

As it happens, the correlation with religious belief that Dutton tabulates are also low, though not as low as the correlations with religious practice.  The majority are in fact less than .20.

So the conclusion has to be that IQ is unimportant as an explanation of religious belief.

And if someone wants to get Marxist with me and say that I draw that conclusion only because I am myself religious, I reiterate  what I have often said before:  I am the most utter and  complete atheist.

Monday, March 28, 2016



Human religions

There is a site of the above name maintained by Englishman Vexen Crabtree, who says he is a Satanist.  He has slender academic qualifications but he seems to have read widely.   Curiously enough, however, he seems dismissive of religion generally.  Only the small band of Satanists have the truth, apparently.

As an atheist myself I find his Satanism amusing but I was interested to see what he has up about religion and IQ.  It is commonly asserted that religious people are a bit dim and he accepts that uncritically.  The only actual evidence he quotes, however is as follows:

[Paul Bell in Mensa Magazine, 2002, reviewed all studies taken of religion and IQ. He concluded:]

"Of 43 studies carried out since 1927 on the relationship between religious belief and one's intelligence and/or educational level, all but four found an inverse connection. That is, the higher one's intelligence or education level, the less one is likely to be religious or hold "beliefs" of any kind."


As I have pointed out previously, however, such studies are usually poorly sampled and usually report only slight effects.  Religious people are less frequent among high IQ people but not by much.  And the whole effect could be artifactual:  High IQ people get on better within higher education so almost certainly get more of it.  But universities are places where religion is skeptically viewed so  high IQ people will get more exposure to anti-religious messages.  And greater exposure to anti-religious messages would be very likely to undermine religious belief to some extent.  So it could be that the level of university exposure accounts wholly for the slightly smaller number of religious people in a high IQ population.

That could be tested fairly easily by assessing  religion and IQ BEFORE the people got into university.

In short, I doubt that IQ has any influence on whether you are religious or not.  It is probably a surprise to most of my fellow atheists but religious people think THEY are stupid.  You have to be pretty dim to think creation was a spontaneous, uncaused event, according to religious people.

There is what I think is good evidence for no association between religion and IQ here

Friday, March 25, 2016



Are you an atheist?  Non-believers 'lack empathy' while religious people are less intelligent, claims study

I have done a great deal of survey research (by doorknocking) in which religious belief was asked and the results reported below seemed wrong to me.  So in my usual pesky way I looked up the underlying academic journal article ("Why Do You Believe in God? Relationships between Religious Belief, Analytic Thinking, Mentalizing and Moral Concern" by I.A. Jack et al).  I was pretty sure what I would find and I did find it:  No attempt at sampling.

The research is just a product of laziness.  They used Mechanical Turk to get their test subjects. It's a great way to avoid getting out of your armchair but it gives you no generalizable data.  The population accessed via MT is unknown but is probably of above average IQ and more introverted.  So the data gained from MT responders enables no generalization to any known population.  A representative sample could give quite different results. 

There is therefore no reason to conclude that the results below accurately reflect the real world. In my experience with surveys, I have had a strong positive correlation among a non-sample turn into a zero correlation with a representative sample.

I note also that most of the correlations between belief and ability  were so low as to be effectively zero for all intents and purposes -- e.g. -0.15 and -0.13.  This comports with previous findings of only trivial (and possibly artifactual) ability differences between believers and unbelievers.  See here and here




If you don't believe in God or a universal spirit, you're more likely to be callous and manipulative, according to a controversial new study.

Atheists exhibit more traits commonly seen among psychopaths than people who consider themselves to be religious.

However, believers aren't spared criticism - the study also found that religious people are less intelligent than their non-believing counterparts.

Religious people were found to be more caring towards their fellow humans and the researchers believe their findings may help explain why women - who tend to be more empathetic - are also likely to be more religious.

Researchers at Cape Western Reserve University in Ohio and Babson College in Massachusetts, argue that the conflict between science and religion may have its origins in the structure of our brains.

Brain scans, and experiments, demonstrate the brain has two 'networks' that are activated when we think - one analytical and critical, the other social and emotional.

To believe in a supernatural god or universal spirit, people appear to suppress the brain network used for analytical thinking and engage the empathetic network, the scientists said.

In a series of eight experiments, each involving between 159 and 527 adults, the researchers examined the relationship between a belief in God or a spirit, with measures of analytic thinking and moral concern.

In all eight, they consistently found the more religious the person, the more moral concern they showed.

Scientists have yet to discover a 'God gene' but said differences at a genetic level appeared to play a big role.

The results were part of a report called 'The Gender Gap in Religion' from Pew, a respected US-based research institute.

They discovered that both spiritual belief and empathetic concern were positively associated with frequency of prayer, meditations and other spiritual or religious practices.

The main finding offers a new explanation for past research showing women tend to hold more religious or spiritual worldviews than men, so this gap may arise because women tend to be more empathetic than men.

In contrast, the researchers said there are some similarities between atheists and psychopaths in that they both lack empathy for others.

The typical psychopath demonstrates 'an absence of emotional response to pain and suffering in others' the authors said, who also found this to be the case among people in a series of personality tests.

The research is based on the hypothesis that the human brain has two opposing domains in constant tension.

In earlier research, Dr Tony Jack, associate professor of philosophy at Cape Western used functional magnetic resonance imaging to show the brain has an analytical network of neurons that enables us to think critically and a social network that enables us to empathise.

When presented with a physics problem or ethical dilemma, a healthy brain fires up the appropriate network while suppressing the other.

'Because of the tension between networks, pushing aside a naturalistic world view enables you to delve deeper into the social or emotional side,' he explained.

'And that may be the key to why beliefs in the supernatural exist throughout the history of cultures. 'It appeals to an essentially non-material way of understanding the world and our place in it.'

He continued: 'When there's a question of faith, from the analytic point of view, it may seem absurd.

'But, from what we understand about the brain, the leap of faith to belief in the supernatural amounts to pushing aside the critical or analytical way of thinking to help us achieve greater social and emotional insight.'

His colleague Professor Richard Boyatzis added: 'A stream of research in cognitive psychology has shown that people who have faith (who are religious or spiritual) are not as smart as others. 'They actually might claim they are less intelligent.'

'Our studies confirmed that statistical relationship, but at the same time showed that people with faith are more prosocial and empathic.'

The new study is published in the online journal PLOS ONE.

The researchers said that while having empathy does not necessarily mean a person has anti-scientific beliefs, it may 'compromise' an individual's ability to cultivate social and moral insight.

However, they point out research that shows between 1901 and 2000, 90 per cent of Nobel Prize winners in science were religious, while the rest were atheists, agnostics or freethinkers. 

SOURCE


Monday, March 21, 2016



An open letter to the Virginia Tech community

By Charles Murray

Last week, the president of Virginia Tech, Tim Sands, published an “open letter to the Virginia Tech community” defending lectures delivered by deplorable people like me (I’m speaking on the themes of Coming Apart on March 25). Bravo for President Sands’s defense of intellectual freedom. But I confess that I was not entirely satisfied with his characterization of my work. So I’m writing an open letter of my own.

Dear Virginia Tech community,

Since President Sands has just published an open letter making a serious allegation against me, it seems appropriate to respond. The allegation: “Dr. Murray is well known for his controversial and largely discredited work linking measures of intelligence to heredity, and specifically to race and ethnicity — a flawed socioeconomic theory that has been used by some to justify fascism, racism and eugenics.”

Let me make an allegation of my own. President Sands is unfamiliar either with the actual content of The Bell Curve — the book I wrote with Richard J. Herrnstein to which he alludes — or with the state of knowledge in psychometrics.

The Bell Curve and Charles Murray
I should begin by pointing out that the topic of the The Bell Curve was not race, but, as the book’s subtitle says, “Intelligence and Class Structure in American Life.” Our thesis was that over the last half of the 20th century, American society has become cognitively stratified. At the beginning of the penultimate chapter, Herrnstein and I summarized our message:

Predicting the course of society is chancy, but certain tendencies seem strong enough to worry about:

An increasingly isolated cognitive elite.

A merging of the cognitive elite with the affluent.

A deteriorating quality of life for people at the bottom end of the cognitive distribution.

Unchecked, these trends will lead the U.S. toward something resembling a caste society, with the underclass mired ever more firmly at the bottom and the cognitive elite ever more firmly anchored at the top, restructuring the rules of society so that it becomes harder and harder for them to lose. [p. 509].

It is obvious that these conclusions have not been discredited in the twenty-two years since they were written. They may be more accurately described as prescient.

Now to the substance of President Sands’s allegation.

The heritability of intelligence

Richard Herrnstein and I wrote that cognitive ability as measured by IQ tests is heritable, somewhere in the range of 40% to 80% [pp. 105–110], and that heritability tends to rise as people get older. This was not a scientifically controversial statement when we wrote it; that President Sands thinks it has been discredited as of 2016 is amazing.

You needn’t take my word for it. In the wake of the uproar over The Bell Curve, the American Psychological Association (APA) assembled a Task Force on Intelligence consisting of eleven of the most distinguished psychometricians in the United States. Their report, titled “Intelligence: Knowns and Unknowns,” was published in the February 1996 issue of the APA’s peer-reviewed journal, American Psychologist. Regarding the magnitude of heritability (represented by h2), here is the Task Force’s relevant paragraph. For purposes of readability, I have omitted the citations embedded in the original paragraph:

If one simply combines all available correlations in a single analysis, the heritability (h2) works out to about .50 and the between-family variance (c2) to about .25. These overall figures are misleading, however, because most of the relevant studies have been done with children. We now know that the heritability of IQ changes with age: h2 goes up and c2 goes down from infancy to adulthood. In childhood h2 and c2 for IQ are of the order of .45 and .35; by late adolescence h2 is around .75 and c2 is quite low (zero in some studies) [p. 85].

The position we took on heritability was squarely within the consensus state of knowledge. Since The Bell Curve was published, the range of estimates has narrowed somewhat, tending toward modestly higher estimates of heritability.

Intelligence and race

There’s no doubt that discussing intelligence and race was asking for trouble in 1994, as it still is in 2016. But that’s for political reasons, not scientific ones. Once again, the state of knowledge about the basics is not particularly controversial. The mean scores for all kinds of mental tests vary by ethnicity. No one familiar with the data disputes that most elemental statement.

Regarding the most sensitive difference, between Blacks and Whites, Herrnstein and I followed the usual estimate of one standard deviation (15 IQ points), but pointed out that the magnitude varied depending on the test, sample, and where and how it was administered. What did the APA Task Force conclude?

“Although studies using different tests and samples yield a range of results, the Black mean is typically about one standard deviation (about 15 points) below that of Whites. The difference is largest on those tests (verbal or nonverbal) that best represent the general intelligence factor g” [p. 93].

Is the Black/White differential diminishing? In The Bell Curve, we discussed at length the evidence that the Black/White differential has narrowed [pp. 289–295], concluding that “The answer is yes with (as usual) some qualifications.” The Task Force’s treatment of the question paralleled ours, concluding with “[l]arger and more definitive studies are needed before this trend can be regarded as established” [p. 93].

Can the Black/White differential be explained by test bias? In a long discussion [pp. 280–286], Herrnstein and I presented the massive evidence that the predictive validity of mental tests is similar for Blacks and Whites and that cultural bias in the test items or their administration do not explain the Black/White differential. The Task Force’s conclusions regarding predictive validity: “Considered as predictors of future performance, the tests do not seem to be biased against African Americans” [p. 93]. Regarding cultural bias and testing conditions:  “Controlled studies [of these potential sources of bias] have shown, however, that none of them contributes substantially to the Black/White differential under discussion here” [p. 94].

Can the Black/White differential be explained by socioeconomic status? We pointed out that the question has two answers: Statistically controlling for socioeconomic status (SES) narrows the gap. But the gap does not narrow as SES goes up — i.e., measured in standard deviations, the differential between Blacks and Whites with high SES is not narrower than the differential between those with low SES [pp. 286–289]. Here’s the APA Task Force on this topic:

Several considerations suggest that [SES] cannot be the whole explanation. For one thing, the Black/White differential in test scores is not eliminated when groups or individuals are matched for SES. Moreover, the data reviewed in Section 4 suggest that—if we exclude extreme conditions—nutrition and other biological factors that may vary with SES account for relatively little of the variance in such scores [p. 94].

The notion that Herrnstein and I made claims about ethnic differences in IQ that have been scientifically rejected is simply wrong.

And so on. The notion that Herrnstein and I made claims about ethnic differences in IQ that have been scientifically rejected is simply wrong. We deliberately remained well within the mainstream of what was confidently known when we wrote. None of those descriptions have changed much in the subsequent twenty-two years, except to be reinforced as more has been learned. I have no idea what countervailing evidence President Sands could have in mind.

At this point, some readers may be saying to themselves, “But wasn’t The Bell Curve the book that tried to prove blacks were genetically inferior to whites?” I gather that was President Sands’ impression as well. It has no basis in fact. Knowing that people are preoccupied with genes and race (it was always the first topic that came up when we told people we were writing a book about IQ), Herrnstein and I offered a seventeen-page discussion of genes, race, and IQ [pp. 295–311]. The first five pages were devoted to explaining the context of the issue — why, for example, the heritability of IQ among humans does not necessarily mean that differences between groups are also heritable. Four pages were devoted to the technical literature arguing that genes were implicated in the Black/White differential. Eight pages were devoted to arguments that the causes were environmental. Then we wrote:

"If the reader is now convinced that either the genetic or environmental explanation has won out to the exclusion of the other, we have not done a sufficiently good job of presenting one side or the other. It seems highly likely to us that both genes and the environment have something to do with racial differences. What might the mix be? We are resolutely agnostic on that issue; as far as we can determine, the evidence does not yet justify an estimate". [p. 311].

That’s it—the sum total of every wild-eyed claim that The Bell Curve makes about genes and race. There’s nothing else. Herrnstein and I were guilty of refusing to say that the evidence justified a conclusion that the differential had to be entirely environmental. On this issue, I have a minor quibble with the APA Task Force, which wrote “There is not much direct evidence on [a genetic component], but what little there is fails to support the genetic hypothesis” [p. 95]. Actually there was no direct evidence at all as of the mid-1990s, but the Task Force chose not to mention a considerable body of indirect evidence that did in fact support the genetic hypothesis. No matter. The Task Force did not reject the possibility of a genetic component. As of 2016, geneticists are within a few years of knowing the answer for sure, and I am content to wait for their findings.

But I cannot leave the issue of genes without mentioning how strongly Herrnstein and I rejected the importance of whether genes are involved. This passage from The Bell Curve reveals how very, very different the book is from the characterization of it that has become so widespread:

In sum: If tomorrow you knew beyond a shadow of a doubt that all the cognitive differences between races were 100 percent genetic in origin, nothing of any significance should change. The knowledge would give you no reason to treat individuals differently than if ethnic differences were 100 percent environmental. By the same token, knowing that the differences are 100 percent environmental in origin would not suggest a single program or policy that is not already being tried. It would justify no optimism about the time it will take to narrow the existing gaps. It would not even justify confidence that genetically based differences will not be upon us within a few generations. The impulse to think that environmental sources of difference are less threatening than genetic ones is natural but illusory.

In any case, you are not going to learn tomorrow that all the cognitive differences between races are 100 percent genetic in origin, because the scientific state of knowledge, unfinished as it is, already gives ample evidence that environment is part of the story. But the evidence eventually may become unequivocal that genes are also part of the story. We are worried that the elite wisdom on this issue, for years almost hysterically in denial about that possibility, will snap too far in the other direction. It is possible to face all the facts on ethnic and race differences on intelligence and not run screaming from the room. That is the essential message [pp. 314-315].

I have been reluctant to spend so much space discussing The Bell Curve’s treatment of race and intelligence because it was such an ancillary topic in the book. Focusing on it in this letter has probably made it sound as if it was as important as President Sands’s open letter implied.

But I had to do it. For two decades, I have had to put up with misrepresentations of The Bell Curve. It is annoying. After so long, when so many of the book’s main arguments have been so dramatically vindicated by events, and when our presentations of the meaning and role of IQ have been so steadily reinforced by subsequent research in the social sciences, not to mention developments in neuroscience and genetics, President Sands’s casual accusation that our work has been “largely discredited” was especially exasperating. The president of a distinguished university should take more care.

It is in that context that I came to the end of President Sands’s indictment, accusing me of promulgating “a flawed socioeconomic theory that has been used by some to justify fascism, racism and eugenics.” At that point, President Sands went beyond the kind of statement that merely reflects his unfamiliarity with The Bell Curve and/or psychometrics. He engaged in intellectual McCarthyism.

See you next week.

SOURCE


Monday, February 29, 2016


Ho Hum! More Leftist nonsense about IQ

As with Leftists in general you have to look past what the author below says to what he doesn't say.  It is true that tracking down a particular gene for any given type of behavior is in its infancy, though some progress has been made with IQ. But we don't need to know that.   We can assess inheritance by twin studies.  And for many years now we have found that identical twins reared apart are amazingly similar whereas non-identical twins reared apart can be quite different.  And that shows how much we owe to our genes.  In the case of IQ the twin studies indicate that about two thirds of it is inherited.

The author  below, Oliver James, refers to Prof. Robert Plomin, a leading behaviour geneticist, but he totallly misrepresents what Plomin says.  Plomin is a very active researcher and I read his papers frequently.  He is the last person to deny genetic influences on behaviour.  He studies them all the time. There is no point in listing his academic articles here but you can find here an article in which he discusses his research and conclusions.  Believe Plomin on Plomin, not some Leftist nutter. 

See also my recent comment on Plomin's work here.  It gives the link to Plomin's own comprehensive study. 

You would not guess it from Mr James's deceptions but there is in fact a steady stream of findings coming out all the time about IQ and its genetic base.  I have collected my various posts over the last couple of years on the subject into a single blog, an IQ blog.  I have done that mainly for my personal ease of reference but I think anybody browsing through the entries there will  be amazed at the wide-ranging influence of IQ.

Mr James is just a liar.  He says he had a difficult childhood.  I believe it



When I was ten, my parents were informed by my headmaster that I was born stupid, and would have to move to a school for the congenitally defective.

To be fair, I was a badly behaved slacker who was always at or near the bottom of every class (the weekly beatings did not help). But the interesting thing is that it was not my genes that made me a thicko.

Although hardly anyone outside the world of science is aware of it, research in the past decade has proved for the first time that no one is made dim or bright by their genes, or for that matter, mad or sane.

It’s finally being established that your character and mentality is not in your genes. The age-old nature-nurture debate is over, and nurture has won.

Don’t take my word for it: Professor Robert Plomin, a behavioural geneticist at King’s College, London, one of the world’s leading experts in this field, said last year: ‘I’ve been looking for these genes for 15 years and I don’t have any.’

Or look at the huge 2013 study of the genes of twins, whose title told you all you need to know: ‘No genetic influence for childhood behaviour problems from DNA analysis’. Many other studies have had similar findings.

Yes, significant genes for differences in physical traits, like height or eye colour, have been identified by the international quest for genes known as the Human Genome Project.

But no genes that matter have been found for psychological traits.

SOURCE