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IQ Primer: Stuart Ritchie's "Intelligence: All That Matters"
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There’s a new 160-page intro to IQ research coming out, in mid-June in the UK, in September in the US:

Intelligence: All That Matters

Paperback – 18 Jun 2015
by Stuart Ritchie

James Thompson reviews the new book at Psychological Comments.

By the way, the late Dan Seligman’s 1992 book A Question of Intelligence remains an extremely readable introduction to a complex field.

 
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  1. Seligman’s book is excellent.

  2. What I’ve always wondered about and never come across, which on this topic would pretty much require me to run into it around here I suppose, is a nature/nurture IQ study that doesn’t strictly deal with averages, but looks at the distribution of individual malleability. Obviously it’s not the same for everyone, so what’s the range? what does having a more malleable intelligence correlate with? do the more malleable stay malleable to some extent? Off the top of my head, I suspect there is a talented tenth below the talented tenth among blacks who get damaged more than realists would expect by the no-books-allowed peer pressure stuff that’s absolutely universal in black neighborhoods across the entire country. In other words, I suspect one in ten black people are significantly more malleable intelligence-wise than the rest, and they would or would nearly leap frog the talented tenth with a form of education that would run into decreasing marginal returns significantly later for them, those of unusually malleable minds. Specifically, I’m thinking of fellas who have very quick instincts and very fluent verbalization but who literally shut down intellectually at anything that requires extended focus. Anecdotally , if you’ve read Thomas Sowell’s Knowledge and Decisions and then Migration and Culture, both are written by a very smart guy, but I would not think they were written by the same guy, even granted the aging process, if I didn’t know. Intuition tells me mental powers come and go a bit with a certain type. Much obliged if anyone can point me somewhere.

    • Replies: @Steve Sailer
    That's a possibility: it jibes somewhat with the in-depth research done by Harvard's admissions department in the 1970s, as summarized in Klitgaard's "Choosing Elites." Initially, Harvard figured there were black diamonds in the ghetto rough that they could find. But soon realized there were very, very few black individuals from bad backgrounds who could make it at Harvard, and the ones they did let in had a nasty habit of committing crimes against their fellow students. So Harvard went back to pretty much only admitting Obama-type blacks, which has worked out well for Harvard.
  3. @Pat Casey
    What I've always wondered about and never come across, which on this topic would pretty much require me to run into it around here I suppose, is a nature/nurture IQ study that doesn't strictly deal with averages, but looks at the distribution of individual malleability. Obviously it's not the same for everyone, so what's the range? what does having a more malleable intelligence correlate with? do the more malleable stay malleable to some extent? Off the top of my head, I suspect there is a talented tenth below the talented tenth among blacks who get damaged more than realists would expect by the no-books-allowed peer pressure stuff that's absolutely universal in black neighborhoods across the entire country. In other words, I suspect one in ten black people are significantly more malleable intelligence-wise than the rest, and they would or would nearly leap frog the talented tenth with a form of education that would run into decreasing marginal returns significantly later for them, those of unusually malleable minds. Specifically, I'm thinking of fellas who have very quick instincts and very fluent verbalization but who literally shut down intellectually at anything that requires extended focus. Anecdotally , if you've read Thomas Sowell's Knowledge and Decisions and then Migration and Culture, both are written by a very smart guy, but I would not think they were written by the same guy, even granted the aging process, if I didn't know. Intuition tells me mental powers come and go a bit with a certain type. Much obliged if anyone can point me somewhere.

    That’s a possibility: it jibes somewhat with the in-depth research done by Harvard’s admissions department in the 1970s, as summarized in Klitgaard’s “Choosing Elites.” Initially, Harvard figured there were black diamonds in the ghetto rough that they could find. But soon realized there were very, very few black individuals from bad backgrounds who could make it at Harvard, and the ones they did let in had a nasty habit of committing crimes against their fellow students. So Harvard went back to pretty much only admitting Obama-type blacks, which has worked out well for Harvard.

    • Replies: @Pat Casey
    I was thinking more like guys who would have an 80 IQ but under optimal conditions could have a 110 IQ and be leaders of men with IQ's of say 120, maybe 125, because of good instincts, presence and attitude. One thing that guys who basically have never spent time socializing with black people don't get is what I mean by instincts. You've mention before how their facile at the kind of small talk that makes girls smile. That's very true. They also have that sixth sense, like a dog that can smell fear. Which is why they're so sensitive to white racism, even know. They really can feel how you are receiving them beyond reading body language. How many old black guys have told you apropos of nothing that they miss segregation when they had theirs and we had ours? Three have said that to me, because slight socially awkward moments bother black people A LOT, its totally opposed to their instincts, and that's what they have to live with now in little ways every day, most of them. Anyhow, I'd be shocked to learn there were shrinking rich white boys at Harvard who didn't take their lumps and go get their stuff back from the out-of-towners, but I suppose it's conceivable that they tattle-tailed to Dean Pamperme, and you def have the encyclopedic mind on me, so I'll trust your recollection. Really though what intrigues or rather almost intrigues me about the issue is a site like thyblackman.com. If only we could teach them to aim at the right targets instead of aiming at their own...the future of the media could maybe become more interesting, I think. Cause they tend not to be scared of smoking Js in public.
    , @Beliavsky
    They still make some mistakes:

    http://www.thecrimson.com/article/2011/9/30/brittany-smith-harvard-shooting-sentenced/
    Ex-Harvard Student Brittany Smith Sentenced to Three Years in Prison
    Harvard Crimson
    September 30, 2011

    WOBURN, Mass.—Former Harvard student Brittany J. Smith pleaded guilty Friday to five of six counts related to her role in the May 2009 killing of a Cambridge drug dealer in Kirkland House. She was promptly sentenced to three years in prison, in addition to two years of probation.

    After a two-year legal drama, Friday’s sentencing marks the fourth and last individual to be convicted in connection with the 2009 shooting that resulted in the death of Cambridge resident Justin Cosby, 21. The ruling follows the felony murder conviction of her boyfriend at the time of the shooting, Jabrai Jordan Copney. Smith was convicted of hiding the murder weapon her boyfriend handed her after the shooting and of then lying to investigators about her involvement.

    Smith pleaded guilty Friday to accessory after the fact to assault and battery with a dangerous weapon, accessory after the fact to unlawful possession of a firearm, unlawful possession of a firearm, and willfully misleading the police. Smith also pleaded guilty to the charge of willfully misleading the grand jury. Under the terms, Smith acknowledged repeatedly lying to a grand jury but maintains that in several instances she did, in fact, not lie.
     
  4. @Steve Sailer
    That's a possibility: it jibes somewhat with the in-depth research done by Harvard's admissions department in the 1970s, as summarized in Klitgaard's "Choosing Elites." Initially, Harvard figured there were black diamonds in the ghetto rough that they could find. But soon realized there were very, very few black individuals from bad backgrounds who could make it at Harvard, and the ones they did let in had a nasty habit of committing crimes against their fellow students. So Harvard went back to pretty much only admitting Obama-type blacks, which has worked out well for Harvard.

    I was thinking more like guys who would have an 80 IQ but under optimal conditions could have a 110 IQ and be leaders of men with IQ’s of say 120, maybe 125, because of good instincts, presence and attitude. One thing that guys who basically have never spent time socializing with black people don’t get is what I mean by instincts. You’ve mention before how their facile at the kind of small talk that makes girls smile. That’s very true. They also have that sixth sense, like a dog that can smell fear. Which is why they’re so sensitive to white racism, even know. They really can feel how you are receiving them beyond reading body language. How many old black guys have told you apropos of nothing that they miss segregation when they had theirs and we had ours? Three have said that to me, because slight socially awkward moments bother black people A LOT, its totally opposed to their instincts, and that’s what they have to live with now in little ways every day, most of them. Anyhow, I’d be shocked to learn there were shrinking rich white boys at Harvard who didn’t take their lumps and go get their stuff back from the out-of-towners, but I suppose it’s conceivable that they tattle-tailed to Dean Pamperme, and you def have the encyclopedic mind on me, so I’ll trust your recollection. Really though what intrigues or rather almost intrigues me about the issue is a site like thyblackman.com. If only we could teach them to aim at the right targets instead of aiming at their own…the future of the media could maybe become more interesting, I think. Cause they tend not to be scared of smoking Js in public.

    • Replies: @Brutusale
    Take some of the "facile" things they say and put them in the mouth of a white guy. Is it still facile, or just another conversation?

    The bigotry of low expectations. It's not how well the bear dances, but that it dances at all.
  5. jb says:

    Wait a minute — the book hasn’t been released yet, but according to the link its Amazon Bestsellers Rank is 6,533, and it’s ranked #62 in Job Hunting? What’s up with that? That strikes me as a really high ranking for on unreleased book on an obscure scientific topic, and the category makes no sense at all.

  6. Dear Pat Casey,
    I think your question can be partly resolved by looking at the literature on compensatory education, particularly that targeted on black children. For early childhood the results are variable, and at least one meta-analysis suggests that the best known studies, such as the Abecedarian project, are outliers showing much better outcomes than most of the other projects. I am working on a post about that topic at the moment. For later interventions there are many reported studies, but most of the better evaluations are more guarded about whether there are big effects on intellectual ability. There is also a literature, race aside, about whether more years of schooling in late adolescence have a positive effect on intelligence. Many first class researchers believe that to be the case, but I find the statistical arguments somewhat complex, and I am not yet convinced.

  7. The most deplorable one [AKA "Fourth doorman of the apocalypse"] says:

    A cop out?

    Quibble: On the contentious matter of racial differences in intelligence, although I agree with Ritchie that the data are not good enough to resolve the matter beyond reasonable doubt, I think that on balance of probabilities about half of racial intelligence differences are probably due to genetics.

    • Replies: @Frank Messmann
    50% of the racial gap difference is non-genetic, but no one knows what that means : chance, random, unmeasurable events, even an in utero event. It has nothing to do with talking more to your babbling infant or placing a copy of Shakespeare's works on the coffee table.
  8. The most deplorable one [AKA "Fourth doorman of the apocalypse"] says:

    What I’ve always wondered about and never come across, which on this topic would pretty much require me to run into it around here I suppose, is a nature/nurture IQ study that doesn’t strictly deal with averages, but looks at the distribution of individual malleability.

    I believe that IQ research shows that any early IQ gains due to the usual interventions wash out and by the time you are in your late teens, it is fixed for life.

    Obviously it’s not the same for everyone, so what’s the range? what does having a more malleable intelligence correlate with? do the more malleable stay malleable to some extent? Off the top of my head, I suspect there is a talented tenth below the talented tenth among blacks who get damaged more than realists would expect by the no-books-allowed peer pressure stuff that’s absolutely universal in black neighborhoods across the entire country.

    Why is it so obvious that it is not the same for everyone?

    I wonder if the no books allowed is because of the lack of the VWFA in most blacks and those who do read are signalling their amount of white genes introgression?

  9. @The most deplorable one
    A cop out?

    Quibble: On the contentious matter of racial differences in intelligence, although I agree with Ritchie that the data are not good enough to resolve the matter beyond reasonable doubt, I think that on balance of probabilities about half of racial intelligence differences are probably due to genetics.
     

    50% of the racial gap difference is non-genetic, but no one knows what that means : chance, random, unmeasurable events, even an in utero event. It has nothing to do with talking more to your babbling infant or placing a copy of Shakespeare’s works on the coffee table.

    • Replies: @Bad Memories
    Except that the component of the variance that is due to genes is actually as high as 80% according to more recent measure.
  10. Intelligence only will can be objectively measured when society is objective.

    Unilateral enphasis on Iq- social, biological, cultural and economic correlations is like fix your gaze on a tree trunk and despise the branches. ”Education” is the most important piece (branch) to modern technocratic collective transcendence (to the cattle, not exactly to the ”farmer”). In a sociopathic subjective society, the smartest ones (to do specific activity) will are not, on average, in their correct laboral hierarchical positions.

    Is impossible to deny this correlations or facts, but is need understand it completely.

  11. @Steve Sailer
    That's a possibility: it jibes somewhat with the in-depth research done by Harvard's admissions department in the 1970s, as summarized in Klitgaard's "Choosing Elites." Initially, Harvard figured there were black diamonds in the ghetto rough that they could find. But soon realized there were very, very few black individuals from bad backgrounds who could make it at Harvard, and the ones they did let in had a nasty habit of committing crimes against their fellow students. So Harvard went back to pretty much only admitting Obama-type blacks, which has worked out well for Harvard.

    They still make some mistakes:

    http://www.thecrimson.com/article/2011/9/30/brittany-smith-harvard-shooting-sentenced/

    Ex-Harvard Student Brittany Smith Sentenced to Three Years in Prison
    Harvard Crimson
    September 30, 2011

    WOBURN, Mass.—Former Harvard student Brittany J. Smith pleaded guilty Friday to five of six counts related to her role in the May 2009 killing of a Cambridge drug dealer in Kirkland House. She was promptly sentenced to three years in prison, in addition to two years of probation.

    After a two-year legal drama, Friday’s sentencing marks the fourth and last individual to be convicted in connection with the 2009 shooting that resulted in the death of Cambridge resident Justin Cosby, 21. The ruling follows the felony murder conviction of her boyfriend at the time of the shooting, Jabrai Jordan Copney. Smith was convicted of hiding the murder weapon her boyfriend handed her after the shooting and of then lying to investigators about her involvement.

    Smith pleaded guilty Friday to accessory after the fact to assault and battery with a dangerous weapon, accessory after the fact to unlawful possession of a firearm, unlawful possession of a firearm, and willfully misleading the police. Smith also pleaded guilty to the charge of willfully misleading the grand jury. Under the terms, Smith acknowledged repeatedly lying to a grand jury but maintains that in several instances she did, in fact, not lie.

  12. Hal says:


    Chimps can learn to cook.

    One assumes they could also learn to clothe themselves if clothes were provided, to drive if cars were provided, and to make noises into a cell phone. None of these activities indicate humanity.

    On the other hand,

    High levels of moral reasoning correspond with increased gray matter in brain.

    The relevant question is whether this specific brain mass is genetic or environmental.

    • Replies: @Bad Memories
    Selection will ensure that individuals are buffered against environmental insult.

    That is, except in extreme cases the environment doesn't matter, especially in first world countries. Minorities get as many nutrients as others.

    Besides, how do you account for East Asians immigrants, many of whom are in distressed situations, outperforming NAMs.
  13. IBC says:

    I’d like to see more analysis of how the Big Five personality traits interact with IQ and to what extent traits like conscientiousness (which is linked with academic performance) are coachable. I think Steve has touched on the subject before, but I haven’t seen much synthesis of the two models, especially scientific.

    • Replies: @Anonymous

    to what extent traits like conscientiousness (which is linked with academic performance) are coachable.
     
    There has been a big push in training grit(which is just conscientiousness renamed) in education these past few years.

    An NPR article:

    It's become the new buzz phrase in education: "Got grit?"

    Around the nation, schools are beginning to see grit as key to students' success — and just as important to teach as reading and math.

    Experts define grit as persistence, determination and resilience; it's that je ne sais quoi that drives one kid to practice trumpet or study Spanish for hours — or years — on end, while another quits after the first setback.
     
    http://www.npr.org/sections/ed/2014/03/17/290089998/does-teaching-kids-to-get-gritty-help-them-get-ahead
  14. Anonymous • Disclaimer says:
    @IBC
    I'd like to see more analysis of how the Big Five personality traits interact with IQ and to what extent traits like conscientiousness (which is linked with academic performance) are coachable. I think Steve has touched on the subject before, but I haven't seen much synthesis of the two models, especially scientific.

    to what extent traits like conscientiousness (which is linked with academic performance) are coachable.

    There has been a big push in training grit(which is just conscientiousness renamed) in education these past few years.

    An NPR article:

    It’s become the new buzz phrase in education: “Got grit?”

    Around the nation, schools are beginning to see grit as key to students’ success — and just as important to teach as reading and math.

    Experts define grit as persistence, determination and resilience; it’s that je ne sais quoi that drives one kid to practice trumpet or study Spanish for hours — or years — on end, while another quits after the first setback.

    http://www.npr.org/sections/ed/2014/03/17/290089998/does-teaching-kids-to-get-gritty-help-them-get-ahead

    • Replies: @Hal

    It’s become the new buzz phrase in education: “Got grit?”
     
    I'm surprised they get away with that. My darlings were all about their innate athletic prowess. I tasked them once with "..now divide both sides by the same thing.." and they responded, in tribal unison, 'Oh Mr. Hal, that too hard."

    But they socialized well.

    BTW, how do I get the complete Who/Whom article?

  15. Hal says:
    @Anonymous

    to what extent traits like conscientiousness (which is linked with academic performance) are coachable.
     
    There has been a big push in training grit(which is just conscientiousness renamed) in education these past few years.

    An NPR article:

    It's become the new buzz phrase in education: "Got grit?"

    Around the nation, schools are beginning to see grit as key to students' success — and just as important to teach as reading and math.

    Experts define grit as persistence, determination and resilience; it's that je ne sais quoi that drives one kid to practice trumpet or study Spanish for hours — or years — on end, while another quits after the first setback.
     
    http://www.npr.org/sections/ed/2014/03/17/290089998/does-teaching-kids-to-get-gritty-help-them-get-ahead

    It’s become the new buzz phrase in education: “Got grit?”

    I’m surprised they get away with that. My darlings were all about their innate athletic prowess. I tasked them once with “..now divide both sides by the same thing..” and they responded, in tribal unison, ‘Oh Mr. Hal, that too hard.”

    But they socialized well.

    BTW, how do I get the complete Who/Whom article?

  16. @Frank Messmann
    50% of the racial gap difference is non-genetic, but no one knows what that means : chance, random, unmeasurable events, even an in utero event. It has nothing to do with talking more to your babbling infant or placing a copy of Shakespeare's works on the coffee table.

    Except that the component of the variance that is due to genes is actually as high as 80% according to more recent measure.

  17. @Hal

    Chimps can learn to cook.


    One assumes they could also learn to clothe themselves if clothes were provided, to drive if cars were provided, and to make noises into a cell phone. None of these activities indicate humanity.

    On the other hand,

    High levels of moral reasoning correspond with increased gray matter in brain.


    The relevant question is whether this specific brain mass is genetic or environmental.

    Selection will ensure that individuals are buffered against environmental insult.

    That is, except in extreme cases the environment doesn’t matter, especially in first world countries. Minorities get as many nutrients as others.

    Besides, how do you account for East Asians immigrants, many of whom are in distressed situations, outperforming NAMs.

  18. @Pat Casey
    I was thinking more like guys who would have an 80 IQ but under optimal conditions could have a 110 IQ and be leaders of men with IQ's of say 120, maybe 125, because of good instincts, presence and attitude. One thing that guys who basically have never spent time socializing with black people don't get is what I mean by instincts. You've mention before how their facile at the kind of small talk that makes girls smile. That's very true. They also have that sixth sense, like a dog that can smell fear. Which is why they're so sensitive to white racism, even know. They really can feel how you are receiving them beyond reading body language. How many old black guys have told you apropos of nothing that they miss segregation when they had theirs and we had ours? Three have said that to me, because slight socially awkward moments bother black people A LOT, its totally opposed to their instincts, and that's what they have to live with now in little ways every day, most of them. Anyhow, I'd be shocked to learn there were shrinking rich white boys at Harvard who didn't take their lumps and go get their stuff back from the out-of-towners, but I suppose it's conceivable that they tattle-tailed to Dean Pamperme, and you def have the encyclopedic mind on me, so I'll trust your recollection. Really though what intrigues or rather almost intrigues me about the issue is a site like thyblackman.com. If only we could teach them to aim at the right targets instead of aiming at their own...the future of the media could maybe become more interesting, I think. Cause they tend not to be scared of smoking Js in public.

    Take some of the “facile” things they say and put them in the mouth of a white guy. Is it still facile, or just another conversation?

    The bigotry of low expectations. It’s not how well the bear dances, but that it dances at all.

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