Lynn’s impossible regression values: bounded outcome variables with OLS
Someone emails me: Hello Mr. Kirkegaard, This is a question I emailed to Richard Lynn about data in regression analysis in his book Intelligence that did not make sense to…
New video out: Who are the comedians?
Got another video out today. It's covering my 2017 paper, that people were posting about on Twitter, suggesting interest in this kind of work. Kirkegaard, E. O. W. (2017). Sex…
Reverse publication bias: a collection
See also Sesardić's conjecture, a related idea. Publication bias as normally considered is really positive publication bias, i.e., the bias is away from zero, towards finding larger than reality results.…
Military psychology: a review
Some of the best psychology related to intelligence and other applications have been conducted by the Anglo-sphere military. I don't actually know much about the research that has been conducted…
Expert opinion on race and intelligence
I was asked about survey data by various kinds of experts on race and intelligence. Happy to oblige, of course. Sean Last has already reviewed some of these last year,…
Free IQ tests that aren’t entirely terrible
People often ask me about this. Where can I get my IQ measured online with some decent reliability, scientific rigor etc., without paying? There's many scam sites, and many sites…
g and its origins: in favor of network psychometrics of intelligence
Someone sent me this email: Hello Emil I was wondering if you knew about any similar papers to this one: https://www.sciencedirect.com/science/article/abs/pii/S0160289608001591 Also, what are your thoughts on mutualism (which I…
https://www.nature.com/articles/s41525-018-0075-2
Population genetic variation and trait variation: not strongly related
In a Gelman-like approach to turning email replies into posts. Someone sent me this email: Thanks for answering this and the other email, and the links as well. I am…
Nice 1100 IQ
Predicting aggregate intelligence level from non-cognitive data
Follow-up to my recent post on machine learning psychometrics. Some years ago, I read this paper by Gerhard Meisenberg: Meisenberg, G., & Williams, A. (2008). Are acquiescent and extreme response…
Expert assessment of The Bell Curve
The Bell Curve (TBC) was widely criticized in the media. This is to be expected since the media are left-wing, and left-wingers hate HBD related content. What did the experts…
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