Archive - Just Emil Kirkegaard Things

Do national IQs predict differently across regions?

Not as far as we can tell

Dec 11 • Emil O. W. Kirkegaard

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.

Dec 9 • Emil O. W. Kirkegaard

Does driver's license training work?

Dec 9 • Emil O. W. Kirkegaard

Verbal tilt model confirmed for political behavior

Also my own results for those interested

Dec 5 • Emil O. W. Kirkegaard

The issue with early interventions for cognitive traits

They improve the wrong skills for lasting gains

Dec 4 • Emil O. W. Kirkegaard

Two new review articles on national IQs

And more meta-regression

Dec 3 • Emil O. W. Kirkegaard

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

Dec 2 • Emil O. W. Kirkegaard

New causal variant estimates for intelligence

Dec 1 • Emil O. W. Kirkegaard

November 2025

Population size is not important for country outcomes

Against speculative higher order effects

Nov 26 • Emil O. W. Kirkegaard

Migrant selection and informative priors

Simulations to train our intuition

Nov 25 • Emil O. W. Kirkegaard

Classification error and relative rates

Measurement error of categorical variables is tricky

Nov 20 • Emil O. W. Kirkegaard

Against the economists on school spending

Summary of the controversy, evidence, and a bit of meta-science

Nov 20 • Emil O. W. Kirkegaard

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