Against the economists on school spending
Some days ago I posted a chart about school spending (per-pupil spending) and math test scores: Note how I didn't say this cross-sectional scatterplot proves anything about causality, but we…
Are IQ scales interval or ordinal?
One of the more obscure objections to intelligence testing is that really the tests are only on ordinal scale, and thus many of the usual statistical operations are undefined. Recall,…
What did the new WGS UKBB study show?
I wasn't going to blog this, since I prefer not covering the same ground as others, but due to multiple requests and questions, I will cover it anyway. It's this…
James Watson’s Greek ANTIFA experience
Most people know that if you at some point say something the left doesn't like, your life may became hell. You may get stalked, assaulted, and occasionally killed and so…
Science vs. ideology on vertical transfers
Last year Marcus Feldman and Kevin Lala published one of those anti-hereditarian pieces: Lala, K. N., & Feldman, M. W. (2024). Genes, culture, and scientific racism. Proceedings of the National…
Newest releases from Nucleus and Herasight
Things are moving fast in the embryo selection sector. There was never really any technological barriers here the last 10+ years, just the usual social taboos and various incompetent people…
How does one correct for measurement error in sibling models?
There was a lot of discussion regarding the corrections for measurement error used in the recent Herasight intelligence polygenic score paper. I covered it for Aporia. I want to dive…
Herasight publishes their validation of IQ PGS; Nucleus open sources their models
There's two exciting news today in embryo selection. The technology is finally moving forward at an appreciable rate. Maybe we are not dysgenics doomed after all. First off, Herasight --…
How to norm a score
Suppose you have created a new scale of something ("Science Blog Rating Scale"). It can be psychology or some other soft science, but it doesn't have to be. Suppose you…
Government family spending does not predict fertility rates, or does it
Fertility rates are terrible in every good country except for Israel. Why is that? Well, maybe we just don't spend enough money on this. Maybe it is too expensive to…