tag:blogger.com,1999:blog-5002675950760488813.post3320331833120532595..comments2024-01-21T14:11:10.779-08:00Comments on The Unsilenced Science: The SAT Bell Curvenooffensebuthttp://www.blogger.com/profile/02461190919466049463noreply@blogger.comBlogger18125tag:blogger.com,1999:blog-5002675950760488813.post-18666684982422993452015-02-28T08:44:46.000-08:002015-02-28T08:44:46.000-08:00LORD ANON says:
I apologize in advance for the in...LORD ANON says:<br /><br />I apologize in advance for the informal speech and lack of correct jargon that will inevitably follow.<br /><br />I'd say I'm a pretty smart upper-middle-class white guy; I got a 35 on the ACT and scored a 215 on the PSAT. Concepts generally come quicker to me than anyone else; I've only met one person who I can be sure understood a specific concept quicker than me.<br /><br />That being said, I'm also pretty arrogant so it's quite possible that I'm overestimating my intelligence.<br /><br />I recently had a theory that you could easily call fucked up. Here goes the premise:<br />I live in Alabama. Here in the south, there are a lot of dumb African Americans. If you look at score breakdowns on intelligence-measuring tests, blacks generally score lower. Even when correcting for things such as class differences and the fact that whites tend to try harder, it still seems that blacks have a distinctive lesser capacity to understand concepts than whites. Specifically, these blacks I'm referring to are African Americans with ancestral slavery living in the deep south. Why is there this intelligence discrepancy?<br />Imagine being a slave. There is nothing more degrading. There is an obvious desire to get out of slavery and an accessible way - escape to the North. Many slaves, such as Harriet Tubman, devised plans to help slaves escape or devised plans solely for their own escape (or their family's.) Those who were not good at devising elaborate plans were caught and remained in the south, or killed. Those who remained in servitude were either loyal or very dumb.<br />From the slaveowner's perspective, A slave that is constantly attempting to usurp your authority is not even worth owning. You would selectively breed, effectively, for the dumb loyal slave who does exactly what he/she is told.<br /><br />These processes seem to select, among other things (loyal, etc) the least intelligent African Americans for continued survival in the South.LORD ANONnoreply@blogger.comtag:blogger.com,1999:blog-5002675950760488813.post-71111126529801904032015-01-19T21:54:44.843-08:002015-01-19T21:54:44.843-08:00Intelligence probably differs from athletics and t...Intelligence probably differs from athletics and temperament, in that the genetics of intelligence is complex with many alleles of small effect. Running ability can be fairly well manipulated, as Olympic athletes sometimes illegally do, and something as simple as the relative proportion of fast- versus slow-twitch muscle fibers might have great influence. Likewise, psychiatrists change patients' mood and temperament with drugs to influence neurotransmitters. Changing intelligence is not so simple.<br /><br />If natural selection plays an important role in intelligence evolution, then David Piffer's <a href="https://thewinnower.com/papers/estimating-the-genotypic-intelligence-of-populations-and-assessing-the-impact-of-socioeconomic-factors-and-migrations" rel="nofollow">approach</a> might be the best direction for identifying the genetic contribution to racial gaps.nooffensebuthttps://www.blogger.com/profile/02461190919466049463noreply@blogger.comtag:blogger.com,1999:blog-5002675950760488813.post-86620722052061597912015-01-18T23:53:26.316-08:002015-01-18T23:53:26.316-08:00Random mutation said...
"If you are going to...Random mutation said...<br /><br />"If you are going to appeal to genetic load to explain differences in intelligence, then I think you also have to appeal to genetic load to explain:<br /><br />1. differences running ability (long distance and sprinting)<br /><br />2. Differences in propensity for violence<br /><br />3. Differences in civilization building<br /><br />Now, the problems with those things are that different groups are good at different things, so now you are reduced to claiming that Africans (and African Americans) have higher genetic load in their intelligence genes, whites and East Asians have higher genetic load in their running/sporting genes, and so on, which seems rather ad-hoc and silly." <br /><br />Agree. You also have to look at the correlation between nation building and the propensity toward violence. There's only one race that, throughout history, has consistently used the cause of nation building to advocate violence. Violence has also been exported to every continent as a result...all in the name of slaughtering Native Americans, oops I mean nation building. Look in the mirror.<br /><br />With respect to running ability, athletes come in all races. There are many more Caucasian American athletes than African American athletes. The pursuit of athletics slows down around the high school/college age and is discouraged over academics, whereas the pursuit of athletics over academics in the African American community is almost expected. At least that's what the press and internet tell us. Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5002675950760488813.post-2626897772582113852015-01-18T23:14:48.061-08:002015-01-18T23:14:48.061-08:00Why the genetic load paradox is based on a fallacy...Why the genetic load paradox is based on a fallacy. http://www.handsongenetics.com/PIFFLE/GeneticLoad.pdf<br /><br />Environment has as great impact on individuals, if not more than genetics. Even Darwin espoused this. "...there is a frequently recurring struggle for existence, it follows that any being, if it vary however slightly in any manner profitable to itself, under the complex and sometimes varying conditions of life, will have a better chance of surviving, and thus be naturally selected."<br /><br />Graphs can be created to show anything one wants. However, those graphs don't show the underlying causal factors skewing the numbers to be what they are. If children, from the impressionable ages, birth to three, are raised in a stable, encouraging household their ability to self-control, have self-esteem, and learn are increased. Add stability in the classroom through high school and you'll likely have a productive AMERICAN citizen. We need to focus on improving these areas as we look to compete in the future with the likes of China and India. In 2008 China was already producing 10x engineers compared to the U.S. http://www.itif.org/content/chinas-engineering-degrees-were-about-10-times-us-number-and-represented-much-higher-share-a. Imagine what that will be by 2050 if we don't focus on making our entire nation better.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5002675950760488813.post-85110659356469476742014-06-05T09:04:42.404-07:002014-06-05T09:04:42.404-07:00I've never seen the SAT distribution by race b...I've never seen the SAT distribution by race before -- that's very interesting. Can you post a link to the source data? I'd love to take a look at it!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5002675950760488813.post-33376068386091253842012-06-15T18:02:28.615-07:002012-06-15T18:02:28.615-07:00J said:
Differences in genetic load is the most p...J said:<br /><i><br />Differences in genetic load is the most plausible explanation of most differences in general intelligence, i.e. people with fewer deleterious mutations have higher intelligence. The genetic load theory is compatible with everything we know about g (e.g. heritability, correlations with health). Evolutionarily, it makes much more sense than the idea that intelligence is selected for, in which case everybody would be smart.<br /></i><br /><br />If you are going to appeal to genetic load to explain differences in intelligence, then I think you also have to appeal to genetic load to explain:<br /><br />1. differences running ability (long distance and sprinting)<br /><br />2. Differences in propensity for violence<br /><br />3. Differences in civilization building<br /><br />Now, the problems with those things are that different groups are good at different things, so now you are reduced to claiming that Africans (and African Americans) have higher genetic load in their intelligence genes, whites and East Asians have higher genetic load in their running/sporting genes, and so on, which seems rather ad-hoc and silly.random mutationnoreply@blogger.comtag:blogger.com,1999:blog-5002675950760488813.post-80112032495126732072012-06-15T07:36:14.965-07:002012-06-15T07:36:14.965-07:00J said:
Differences in genetic load is the most p...J said:<br /><i><br />Differences in genetic load is the most plausible explanation of most differences in general intelligence, i.e. people with fewer deleterious mutations have higher intelligence. The genetic load theory is compatible with everything we know about g (e.g. heritability, correlations with health). Evolutionarily, it makes much more sense than the idea that intelligence is selected for, in which case everybody would be smart.<br /></i><br /><br />There is a healthy dose of nonsense there.<br /><br />The brain is a very expensive organism, developmentally and operationally. There will be an optimum brain size that balances the cost of increasing brain size (and in any social species there will always be selection for increase in brain size to allow for exploitation of other members of your species as well as a conversion of some behaviors from learned to innate) against the benefits of that increased brain size in terms of reproductive success. In addition, we can expect the size of the selection effect to be correlated with the average group size. Thus selection for intelligence goes up as different groups start engaging in large-scale civilizations, like the Indians, the Chinese and the Caucasians.<br /><br />Also, have you thought about how the argument about genetic load applies to other species? Why do those with lower genetic load not have higher intelligence than humans?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5002675950760488813.post-4679834567071606032012-05-27T12:37:13.511-07:002012-05-27T12:37:13.511-07:00I really appreciate what you post. You have a new ...I really appreciate what you post. You have a new subscriber now.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5002675950760488813.post-55140979774120494452012-05-19T14:53:37.835-07:002012-05-19T14:53:37.835-07:00The graphs labeled "verbal/critical reading s...The graphs labeled "verbal/critical reading standard deviations" and "math standard deviations" graph standard deviations for men, women, and racial/ethnic groups. Men always had higher variance/standard deviations than women on the math subtest. This is reflected in a shorter and wider math bell curve for men. Summers was correct because far fewer women than men scored at the highest levels of the math subtest. I have never heard a case made that the math subtest has a gender bias, but a 2010 study determined that it does not have a cultural bias against black students, but the verbal subtest does, even though the black-white gap is larger on the math subtest.nooffensebuthttps://www.blogger.com/profile/02461190919466049463noreply@blogger.comtag:blogger.com,1999:blog-5002675950760488813.post-27208053552206762862012-05-19T02:13:27.011-07:002012-05-19T02:13:27.011-07:00Interesting data set.
May I suggest to label axes...Interesting data set.<br /><br />May I suggest to label axes?<br /><br />Also, concerning the male-female difference, you write that 'The standard deviations graph above validates Summers’ observation'. Summers' observation was that 'there is a difference in the standard deviation, and variability of a male and a female population'. <br /><br />1) What do you mean by a standard deviations graph? I cannot find a single value (or graphical representation) for the standard deviations of men and women in this post.<br /><br />2) Looking at the male and female plots makes me doubt whether male and female standard deviations will differ. The main difference seems to be one of means. You could check that with a t-test (comparing means) and a standard deviation test (comparing standard deviations).<br /><br />3) What is the directionality? Are women worse on these tests, or are the tests less geared towards women? By agreeing with Summers, you suggest it is the former. Why?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5002675950760488813.post-47056787728796720212012-05-10T16:06:03.884-07:002012-05-10T16:06:03.884-07:00Another myth that won't die is that we could j...Another myth that won't die is that we could just switch affirmative action from race to class. But, as far as I can tell, virtually all the 1300+ black sutdents come from the middle class or above, or mixed race homes, or foreign elites.Steve Sailerhttps://www.blogger.com/profile/11920109042402850214noreply@blogger.comtag:blogger.com,1999:blog-5002675950760488813.post-89921140573374744702012-05-10T16:04:39.085-07:002012-05-10T16:04:39.085-07:00Something you might consider doing is calculating ...Something you might consider doing is calculating just how small the number of ultra-elite black scorers is. How many 1500+ blacks are left after Harvard, Yale, Princeton, and Stanford get their bites at the apple?Steve Sailerhttps://www.blogger.com/profile/11920109042402850214noreply@blogger.comtag:blogger.com,1999:blog-5002675950760488813.post-13049595399719049262012-05-10T16:03:04.011-07:002012-05-10T16:03:04.011-07:00Wow, those are creepy graphs. The undulating Blob ...Wow, those are creepy graphs. The undulating Blob ...Steve Sailerhttps://www.blogger.com/profile/11920109042402850214noreply@blogger.comtag:blogger.com,1999:blog-5002675950760488813.post-1818332539229108462012-05-10T16:02:31.420-07:002012-05-10T16:02:31.420-07:00Cochran is working on the genetic load idea.Cochran is working on the genetic load idea.Steve Sailerhttps://www.blogger.com/profile/11920109042402850214noreply@blogger.comtag:blogger.com,1999:blog-5002675950760488813.post-58832127982179687162012-05-04T19:08:59.382-07:002012-05-04T19:08:59.382-07:00Can you point to any good references for genetic l...Can you point to any good references for genetic load in relation to intelligence, behavior, etc.?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5002675950760488813.post-30699412817659529012012-05-04T04:48:11.993-07:002012-05-04T04:48:11.993-07:00Differences in genetic load is the most plausible ...Differences in genetic load is the most plausible explanation of most differences in general intelligence, i.e. people with fewer deleterious mutations have higher intelligence. The genetic load theory is compatible with everything we know about g (e.g. heritability, correlations with health). Evolutionarily, it makes much more sense than the idea that intelligence is selected for, in which case everybody would be smart.Jnoreply@blogger.comtag:blogger.com,1999:blog-5002675950760488813.post-81130359089289465882012-05-04T00:56:43.360-07:002012-05-04T00:56:43.360-07:00I don't know about genetic load (deleterious m...I don't know about genetic load (deleterious mutations), but recent allele fixations differ between Africans, Europeans, and Asians, per <a href="http://www.plosgenetics.org/article/info%3Adoi%2F10.1371%2Fjournal.pgen.1000500" rel="nofollow">Coop et al</a>. I would expect the putting off of childbirth until later in life to have a significant influence on population differences in genetic load.nooffensebuthttps://www.blogger.com/profile/02461190919466049463noreply@blogger.comtag:blogger.com,1999:blog-5002675950760488813.post-17766874972337302382012-05-03T03:38:21.774-07:002012-05-03T03:38:21.774-07:00What do you know about mutational loads and whethe...What do you know about mutational loads and whether they vary across races?Anonymousnoreply@blogger.com