Just Emil Kirkegaard Things
@kirkegaard.skystack.xyz
No filter science
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This is an automated Substack Account of https://kirkegaard.substack.com
Discover more/Create at: @skystack.xyz
African beauty • Provoking new study from Princeton's sociology department
African beauty
Provoking new study from Princeton's sociology department
www.emilkirkegaard.com
December 16, 2025 at 10:51 PM
African beauty • Provoking new study from Princeton's sociology department
European women and migrants: are children the solution? • Maybe not
European women and migrants: are children the solution?
Maybe not
www.emilkirkegaard.com
December 15, 2025 at 7:52 PM
European women and migrants: are children the solution? • Maybe not
Do national IQs predict differently across regions? • Not as far as we can tell
Do national IQs predict differently across regions?
Not as far as we can tell
www.emilkirkegaard.com
December 11, 2025 at 7:55 PM
Do national IQs predict differently across regions? • Not as far as we can tell
Admixture in Americas 2.0 • Why are some countries good and others not so good? It has a lot to do with who lives in them.
Admixture in Americas 2.0
Why are some countries good and others not so good? It has a lot to do with who lives in them.
www.emilkirkegaard.com
December 9, 2025 at 7:54 PM
Admixture in Americas 2.0 • Why are some countries good and others not so good? It has a lot to do with who lives in them.
Does driver's license training work? • No.
Does driver's license training work?
No.
www.emilkirkegaard.com
December 9, 2025 at 4:50 PM
Does driver's license training work? • No.
Verbal tilt model confirmed for political behavior • Also my own results for those interested
Verbal tilt model confirmed for political behavior
Also my own results for those interested
www.emilkirkegaard.com
December 5, 2025 at 10:53 AM
Verbal tilt model confirmed for political behavior • Also my own results for those interested
Two new review articles on national IQs • And more meta-regression
Two new review articles on national IQs
And more meta-regression
www.emilkirkegaard.com
December 3, 2025 at 7:55 AM
Two new review articles on national IQs • And more meta-regression
What explains the Big Pisa Decline of 2022? It's not COVID • Main candidate is they changed the testing format for 2 of the 3 tests
What explains the Big Pisa Decline of 2022? It's not COVID
Main candidate is they changed the testing format for 2 of the 3 tests
www.emilkirkegaard.com
December 2, 2025 at 1:52 AM
What explains the Big Pisa Decline of 2022? It's not COVID • Main candidate is they changed the testing format for 2 of the 3 tests
New causal variant estimates for intelligence • Well, "new".
New causal variant estimates for intelligence
Well, "new".
www.emilkirkegaard.com
December 1, 2025 at 4:52 AM
New causal variant estimates for intelligence • Well, "new".
Population size is not important for country outcomes • Against speculative higher order effects
Population size is not important for country outcomes
Against speculative higher order effects
www.emilkirkegaard.com
November 27, 2025 at 7:50 AM
Population size is not important for country outcomes • Against speculative higher order effects
Migrant selection and informative priors • Simulations to train our intuition
Migrant selection and informative priors
Simulations to train our intuition
www.emilkirkegaard.com
November 25, 2025 at 10:54 AM
Migrant selection and informative priors • Simulations to train our intuition
Classification error and relative rates • Measurement error of categorical variables is tricky
Classification error and relative rates
Measurement error of categorical variables is tricky
www.emilkirkegaard.com
November 24, 2025 at 1:35 PM
Classification error and relative rates • Measurement error of categorical variables is tricky
Against the economists on school spending • Summary of the controversy, evidence, and a bit of meta-science
Against the economists on school spending
Summary of the controversy, evidence, and a bit of meta-science
www.emilkirkegaard.com
November 24, 2025 at 1:35 PM
Against the economists on school spending • Summary of the controversy, evidence, and a bit of meta-science
Are IQ scales interval or ordinal? • Some indirect evidence for interval level
Are IQ scales interval or ordinal?
Some indirect evidence for interval level
www.emilkirkegaard.com
November 24, 2025 at 1:35 PM
Are IQ scales interval or ordinal? • Some indirect evidence for interval level
What did the new WGS UKBB study show? • A nice improvement, the next path forward and reliability issues
What did the new WGS UKBB study show?
A nice improvement, the next path forward and reliability issues
www.emilkirkegaard.com
November 24, 2025 at 1:35 PM
What did the new WGS UKBB study show? • A nice improvement, the next path forward and reliability issues
James Watson's Greek ANTIFA experience • Documenting a relatively unknown event
James Watson's Greek ANTIFA experience
Documenting a relatively unknown event
www.emilkirkegaard.com
November 24, 2025 at 1:35 PM
James Watson's Greek ANTIFA experience • Documenting a relatively unknown event
Science vs. ideology on vertical transfers • Meta-analysis shows vertical transfer on average accounts for ~1% of variance
Science vs. ideology on vertical transfers
Meta-analysis shows vertical transfer on average accounts for ~1% of variance
www.emilkirkegaard.com
November 24, 2025 at 1:35 PM
Science vs. ideology on vertical transfers • Meta-analysis shows vertical transfer on average accounts for ~1% of variance
Newest releases from Nucleus and Herasight • Nucleus releases sibling validation paper, Herasight releases imputation validation paper
Newest releases from Nucleus and Herasight
Nucleus releases sibling validation paper, Herasight releases imputation validation paper
www.emilkirkegaard.com
November 24, 2025 at 1:35 PM
Newest releases from Nucleus and Herasight • Nucleus releases sibling validation paper, Herasight releases imputation validation paper
How does one correct for measurement error in sibling models? • Sibling effects are great, but measurement error is a difficulty
How does one correct for measurement error in sibling models?
Sibling effects are great, but measurement error is a difficulty
www.emilkirkegaard.com
November 24, 2025 at 1:35 PM
How does one correct for measurement error in sibling models? • Sibling effects are great, but measurement error is a difficulty
Government family spending does not predict fertility rates, or does it • Maybe tax breaks are magic, or maybe not
Government family spending does not predict fertility rates, or does it
Maybe tax breaks are magic, or maybe not
www.emilkirkegaard.com
November 24, 2025 at 1:35 PM
Government family spending does not predict fertility rates, or does it • Maybe tax breaks are magic, or maybe not
The genetics of beliefs • Not a doomer
The genetics of beliefs
Not a doomer
www.emilkirkegaard.com
November 24, 2025 at 1:35 PM
The genetics of beliefs • Not a doomer
Indian IQ in 1944 • Tribute to Sohan Lall
Indian IQ in 1944
Tribute to Sohan Lall
www.emilkirkegaard.com
November 24, 2025 at 1:35 PM
Indian IQ in 1944 • Tribute to Sohan Lall
New paper: Psychometric Analysis of the Multifactor General Knowledge Test • With Seb Jensen again
New paper: Psychometric Analysis of the Multifactor General Knowledge Test
With Seb Jensen again
www.emilkirkegaard.com
November 24, 2025 at 1:35 PM
New paper: Psychometric Analysis of the Multifactor General Knowledge Test • With Seb Jensen again
How much should we trust medicine? • Review of Medical Nihilism (Jacob Stegenga)
How much should we trust medicine?
Review of Medical Nihilism (Jacob Stegenga)
www.emilkirkegaard.com
November 24, 2025 at 1:35 PM
How much should we trust medicine? • Review of Medical Nihilism (Jacob Stegenga)
Newest results in 'deep roots' in the Americas • Ancestry in disguise
Newest results in 'deep roots' in the Americas
Ancestry in disguise
www.emilkirkegaard.com
November 24, 2025 at 1:35 PM
Newest results in 'deep roots' in the Americas • Ancestry in disguise