Predicting IQ from genetics: how far have we come? [January 2020]

Counting significant hits was always a dumb way to measure progress in genomic prediction of a trait. Breeders using animals and plants never bothered with this approach and they used ridge regression for best predictive power (a “two cultures” problem no doubt). Researchers in human genetics are starting to catch up, implementing clever Enet approach…

Open data and behavioral genetics: room for improvement!

Open data is a fundamental part of getting science to work well. Primary reasons for this: Redundancy is data archiving. Most data are lost because no backups exist! Easy access to 3rd parties. For new analyses or error checking previous work. Scientists are human and often refuse access to data for hostile outsiders, preventing them…

Stereotype threat: current evidence in January 2020

Stereotype threat is: a situational predicament in which people are or feel themselves to be at risk of conforming to stereotypes about their social group.[1][2] Stereotype threat is purportedly a contributing factor to long-standing racial and gender gaps in academic performance. It may occur whenever an individual’s performance might confirm a negative stereotype because stereotype…

Ken Richardson claims FAQ

Since philosophy blogger RaceRealist is on a mission to promote Ken Richardson, it seems we need to discuss his various claims a bit more. Hence, this post is an FAQ about his claims. Is there agreement on definition of “intelligence” and how to measurement it? “As we approach the centenary of the first practical intelligence…

2019 in books

I document my reading habits on Goodreads platform, so it’s easy for anyone to follow along. I don’t review all books I read, just when I feel like it. I do however rate them all. 2019 is over, so I can look back at the year and see what I read. Below, I organized them…

Women, taxes and voting

Many libertarians defend women’s voting rights (suffrage) by reference to general principles about equality of legal rights. The historical reason for this move, I think, is that libertarians and classical liberals was a political reaction to the extra legal rights of the nobility and royalty. Thus, their goal was to equalize such rights, and this…

New paper out: Racial and ethnic group differences in the heritability of intelligence: A systematic review and meta-analysis (Pesta et al 2020)

So, our big Scarr-Rowe meta-analysis dropped recently. I was traveling at the time, so there was a bit of a delay to this posting. I also recorded a long video covering the reasons why this kind of study is important. Pesta, B. J., Kirkegaard, E. O. W., te Nijenhuis, J., Lasker, J., & Fuerst, J….