Essays

14 Reasons IQ Race Gap is Genetic

20060122_multiracialists_are_crazy_part_3_iq_graph_racial

by Frank Jamger

INTELLIGENCE DIFFERENCES are genetic.

Reasons we know that the intelligence gap between Whites and Blacks is genetically based:

1. There are pervasive physical differences between Whites and Blacks, including brain size and structure, bone density, muscularity, fat storage, hormones, and metabolic rate. Whites’ brains average 6-8% larger; larger brains being correlated with higher intelligence. There are also differences in behavioral traits such as sexual activeness, marital fidelity, birth rate, gestation period, and maturation rate. These indicate a biological strategy of greater parental investment for Whites, also correlated with higher intelligence.

2. Genetic divergence of the races has accelerated since Whites/Blacks split over 60,000 years ago, and a majority of genes affect the brain. Whites evolved in Northern regions with greater cognitive demands to plan and prepare for harsh Winters.

3. Many specific gene alleles have been linked to higher intelligence, and in every case these alleles occur with greater frequency in Whites than Blacks.

4. White-Black academic and cultural disparities, including an IQ gap of 1SD or more, are consistent across geographic regions and technological eras. They persist throughout various cultures, and in spite of massive uplift programs benefiting Blacks and some devastating wars afflicting Whites.

5. When African Blacks took control of White-governed nations with advanced infrastructure, some of them rich in resources, the level of civilization collapsed.

6. Twin/adoption studies consistently show that core traits including intelligence are mostly genetic-based for both Whites and Blacks, and rule out cultural factors as possible causes of the IQ gap. Identical twins reared in random families have much closer IQs than fraternal twins reared in the same family. Genome-wide gene association studies reach the same conclusion.

7. The 1SD White/Black IQ gap is evident in the first tests of children at age 3, when cultural differences are minimal, and is consistent throughout the lifespan.

8. Intensive and extravagant education programs have mostly failed to raise Black IQ or academic achievement, having but minimal effect.

9. Blacks adopted as infants into middle-class White families have, by adulthood, the same 1SD lower IQ than their adopted White cohorts. Mixed race cohorts have intermediate IQs.

10. Black children of high-IQ parents have IQs midway between their parents’ and the lower black mean, in accordance with the hereditarian principle of regression toward the mean. White children regress toward the 1SD higher White mean, and so they have higher IQs than Blacks with parents of the same IQ. Children of lowest-income Whites score higher on SATs than children of highest-income Blacks.

11. Mixed-race Blacks having more White ancestry have higher IQs than those with less White ancestry. Reported ancestry is an even stronger predictor of their IQs than skin lightness.

12. The White/Black gap is largest on IQ subtests that are the most g-loaded and heritable. These items have the closest correlation with biological measures such as brain size, cortical thickness, rate of glucose metabolism, nerve conduction velocity, and reaction time.

13. Blacks do no better on intelligence tests that are non-cultural, such as Raven’s Progressive Matrices, Backward digit span, and Reaction time tests.

14. Blacks in White nations not only enjoy the benefits of White civilization, but are advantaged in many respects: pervasive anti-White discrimination in education and hiring, high taxes/insurance premiums paid by Whites for Black welfare/benefits, special education programs, and an entertainment media that extols Blacks and ridicules Whites. Blacks have much higher self-esteem than Whites.

Sources

1a- Race, Evolution, and Behavior.
http://psychology.uwo.ca/faculty/rushtonpdfs/Race_Evolution_Behavior.pdf

1b- Brain size, IQ, and racial-group differences: Evidence from musculoskeletal traits.
http://philipperushton.net/wp-content/uploads/2015/02/Brain-Size-IQ-and-Racial-Group-Differences-Evidence-From-Musculoskeletal-Traits-2003-by-John-Philippe-Rushton-Elizabeth-W.-Rushton.pdf

1c- Brain Size, Race, and IQ.
http://thealternativehypothesis.org/index.php/2016/04/15/brain-size-race-and-iq/

1d- Brain Size and IQ.
http://thealternativehypothesis.org/index.php/2016/04/15/brain-size-and-iq/

1e- Modeling the 3D Geometry of the Cortical Surface with Genetic Ancestry.
http://www.cell.com/current-biology/abstract/S0960-9822%2815%2900671-5

2a- Recent acceleration of human adaptive evolution.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2410101/

2b- Different level of population differentiation among human genes.
http://www.biomedcentral.com/1471-2148/11/16

2c- Rare variants and human genetic diversity.
http://infoproc.blogspot.com/2012/07/rare-variants-and-human-genetic.html

2d- The Human Brain Online: An Open Resource for Advancing Brain Research.
http://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.1001453

3a- Race and IQ: Genes That Predict Racial Intelligence Differences.
http://therightstuff.biz/2015/09/02/race-and-iq-genes-that-predict-racial-intelligence-differences/

3b- A review of intelligence GWAS hits: Their relationship to country IQ and the issue of spatial autocorrelation.
http://emilkirkegaard.dk/en/wp-content/uploads/PifferIntelligence2015.pdf

4a- Intelligence: A Unifying Construct for the Social Sciences.
https://lesacreduprintemps19.files.wordpress.com/2012/08/intelligence-a-unifying-construct-for-the-social-sciences-richard-lynn-and-tatu-vanhanen.pdf

4b- National IQs predict GMAT scores across 173 nations.
http://humanvarieties.org/2014/02/02/quick-post-lvs-national-iqs-predicts-gmat-scores-across-173-nations/

4c- National differences in G.
https://abc102.wordpress.com/2006/03/23/national-differences-in-g/

4d- The totality of available evidence shows race-IQ gap still remains.
http://philipperushton.net/wp-content/uploads/2015/02/The-Totality-of-Available-Evidence-Shows-the-Race-IQ-Gap-Still-Remains-2006-by-John-Philippe-Rushton-Arthur-Robert-Jensen.pdf

4e- Test Scores Sink as New York Adopts Tougher Benchmarks.
http://www.nytimes.com/2013/08/08/nyregion/under-new-standards-students-see-sharp-decline-in-test-scores.html

5a- Mugabe’s fall symbolic of economic collapse.
http://www.theindependent.co.zw/2015/02/13/mugabes-fall-symbolic-economic-collapse/

5b- South Africa: Where Corruption, Rape and Murder Are Normal.
https://www.thetrumpet.com/article/11050.30898.159.0

5c- Black South Africans much worse off under ANC-rule now than under apartheid.
http://www.spainvia.com/leftwingdisaster.htm

5d- The Agony of Africa.
http://www.amren.com/news/2009/02/the_agony_of_af/

6a- Meta-analysis of the heritability of human traits based on fifty years of twin studies.
http://www.nature.com/ng/journal/v47/n7/full/ng.3285.html

6b- The Heritability of IQ.
http://thealternativehypothesis.org/index.php/2016/04/15/the-heritability-of-iq/

6c- Genes influence academic ability across all subjects, latest study shows.
http://www.theguardian.com/science/2015/jul/23/genes-influence-academic-ability-across-all-subjects-latest-study-shows

6d- Genetics, Not Upbringing, Main Influencer in a Child’s IQ, Study Says.
http://www.foxnews.com/health/2014/10/30/genetics-not-upbringing-main-influencer-in-childs-iq-study-says.html

6e- The gene-environment hypothesis.
https://abc102.wordpress.com/2011/02/17/the-gene-environment-hypothesis/

6f- Genome-wide association studies establish that human intelligence is highly heritable and polygenic.
http://www.ncbi.nlm.nih.gov/pubmed/21826061

7– The Onset and Development of B-W Ability Differences: Early Infancy to Age 3.
http://humanvarieties.org/2013/05/26/the-onset-and-development-of-b-w-ability-differences-early-infancy-to-age-3-part-1/

8a- The shaky science behind Obama’s universal pre-K.
https://www.aei.org/publication/the-shaky-science-behind-obamas-universal-pre-k/

8b- Universal Preschool’s Empty Promises.
http://www.heritage.org/research/reports/2013/03/universal-preschools-empty-promises

8c- Expectations of sustained effects from scaled up pre-K: Challenges from the Tennessee study.
http://www.brookings.edu/research/papers/2015/10/08-expectations-of-sustained-effects-from-scaled-up-prek-challenges-tennessee-study-farran-lipsey

8d- Money And School Performance: Lessons from the Kansas City Desegregation Experiment.
http://www.cato.org/pubs/pas/pa-298.html

9– Research That Was to Prove Jensen Wrong Proves Him Right.
http://www.amren.com/ar/1994/03/

10a- Thirty years of research on race differences in cognitive ability; Section 9: Mean Race–IQ Differences and Regression.
http://philipperushton.net/wp-content/uploads/2015/02/Thirty-Years-of-Research-on-Race-Differences-in-Cognitive-Ability-2005-by-John-Philippe-Rushton-Arthur-Robert-Jensen.pdf

10b- The Expanding Racial Scoring Gap Between Black and White SAT Test Takers.
http://www.jbhe.com/features/49_college_admissions-test.html

11a- Spearman’s hypothesis and the NLSY97-ASVAB, part 2.
http://humanvarieties.org/2013/01/29/spearmans-hypothesis-and-the-nlsy97-asvab-part-2/

11b- More than Just “Colorism”: Part 1.
http://humanvarieties.org/2013/02/02/more-than-just-colorism-part-1/

11c- Colorism in America?
http://humanvarieties.org/2013/02/22/colorism-in-america-1/

12a- Life history theory and race differences; Section 4. Spearman’s g and Jensen effects.
http://philipperushton.net/wp-content/uploads/2015/02/Life-History-Theory-and-Race-Differences-An-Appreciation-of-Richard-Lynn%E2%80%99s-Contributions-to-Science-2012-by-John-Philippe-Rushton.pdf

12b- Subtest Heritability, The G Factor, and Racial Intelligence Differences.
http://thealternativehypothesis.org/index.php/2016/04/16/subtest-heritability-the-g-factor-and-racial-intelligence-differences/

12c- Spearman’s Hypothesis and Racial Differences on the DAS-II.
http://humanvarieties.org/2013/12/08/spearmans-hypothesis-and-racial-differences-on-the-das-ii/

12d- Spearman’s hypothesis on item-level data from Raven’s Standard Progressive Matrices: A replication and extension.
https://thewinnower.com/papers/spearman-s-hypothesis-on-item-level-data-from-raven-s-standard-progressive-matrices-a-replication-and-extension

12e- G loadings, Sub Test Malleability, and Racial IQ Differences (The Jensen Effect).
http://spawktalk.blogspot.com/2014/11/g-loadings-sub-test-malleability-and.html

12f- Spearman’s hypothesis and the Jensen Effect.
https://abc102.wordpress.com/2011/02/17/spearmans-hypothesis-and-the-jensen-effect/

12g- Is Psychometric g a Myth?
http://humanvarieties.org/2013/04/03/is-psychometric-g-a-myth/

13a- Thirty years of research on race differences in cognitive ability; Section 3: Mean Race–IQ Differences: A Global Perspective.
http://philipperushton.net/wp-content/uploads/2015/02/Thirty-Years-of-Research-on-Race-Differences-in-Cognitive-Ability-2005-by-John-Philippe-Rushton-Arthur-Robert-Jensen.pdf

13b- Racial Differences on Digit Span Tests.
http://humanvarieties.org/2013/12/21/racial-differences-on-digit-span-tests/

14a- The Elusive X-Factor, or Why Jonathan Kaplan Is Wrong about Race and IQ.
http://humanvarieties.org/2014/08/25/the-elusive-x-factor-or-why-jonathan-kaplan-is-wrong-about-race-and-iq/

14b- The Racial Tithe.
http://therightstuff.biz/2016/05/12/the-racial-tithe/

14c- The Cost of Welfare Use By Immigrant and Native Households; Race and Ethnicity.
http://cis.org/Cost-Welfare-Immigrant-Native-Households

14d- All Those White People on Food Stamps.
http://therightstuff.biz/2015/09/13/all-those-white-people-on-food-stamps/

14e- Affirmative Action and the Costs of Diversity.
http://www.npiamerica.org/research/category/affirmative-action-and-the-costs-of-diversity

14f- The Myth of American Meritocracy.
http://www.theamericanconservative.com/articles/the-myth-of-american-meritocracy/

14g- Testing standards lowered by affirmative action.
http://www.care2.com/c2c/share/detail/1354710

14h- The Affirmative Action Hoax.
http://www.neoeugenics.net/hoax.htm

14i- Affirmative Action Thrives at Most Selective Colleges.
http://www.rollcall.com/news/affirmative_action_thrives_at_most_selective_colleges-240861-1.html

14j- Black, Asian women with college degree outearn white women.
http://community.seattletimes.nwsource.com/archive/?date=20050328&slug=income28

14k- Black Americans have higher self-esteem than White Americans.
http://conservative-headlines.com/2014/12/black-americans-have-higher-self-esteem-than-white-americans/

See also: 14 Biological Race Differences
http://fjamger.blogspot.com/2015/11/14brd.html

* * *

Source: Frank Jamger

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Mitchell
Mitchell
21 February, 2017 1:13 pm

They make some good music though.

Christina
Christina
5 May, 2017 4:48 am

I gotta say…. I have read and listened to so many vehement arguments against the link between race/intelligence, but save white supremacist websites, no modern day arguments connecting race and intelligence. That speaks volumes… What are all these people arguing against? 1930’s eugenics? They’re like the person in the room who tells everybody who’ll listen how they are NOT materialistic (or some other trait) when nobody suggested that they are materialistic in the first place…. It begs the question, why are they trying to convince people to reject an ideology that’s not even voiced in mainstream society? Is it because these beliefs about race and intelligence are often the result, not of teaching, but of personal experience? Hmmm…. They’re trying to repeat to me, each other and themselves that any… Read more »

john
john
11 March, 2018 7:57 pm

The problem with these statistics is that the majority of blacks are at least 50% white, skewing the results. They count as blacks in the stats but if only pure blacks were used the IQ range would be lower.

Neo
Neo
4 October, 2018 6:29 pm

African americans at most have 13-16 percent dna from Europeans any sources to back up your claims?

doug
doug
Reply to  Neo
30 November, 2022 2:57 pm

one third of y-chromosomes of black males are non-African – Hammer et al 2005

Phil
Phil
5 October, 2018 2:33 am

The more taboo aspect is to say certain races have certain personalities or archetypes…..

doug
doug
3 December, 2022 10:55 am

Portugal with a national IQ of 96 has more Nobel prize winners per capita than Japan (national IQ of 105). Furthermore 6% of Portuguese have MtDNA of haplogroup L; half of which is modern. Italy (national IQ of 102) also has more Nobel prize winners per capita than Japan, but the 2.9% L3 MtDNA of Italians is all stone age vintage and thus of little significance since it came out of Africa with the ancestors of all other EurAsians. In the 1600s it is reconed that 10% of Libon was black. Subsequently whites from the countryside flooded into Lisbon and many black males emmigrated. I once wrote a school paper on whaling and Yankee ships augmented their crews from Portuguese and negroes in the Azores. Their descendants are now spread… Read more »