Does assortative mating work?
In my recent post about differences on the tails, a good comment was posted by Kristine: Is there any correlation between IQ gap and divorce, I wonder... The generation observation…
New York Times is back on the race science beat
Back on the 23rd October 2025, some journalist I hadn't heard of called Mike McIntire emailed me. He said he was writing some smear piece for the New York Times,…
Assortative mating and differences
Cremieux has a viral post showing the absolute IQ gaps for spouses/partners as a function of the smartest spouse: This finding is trivial but apparently surprising to many people judging…
Who is biased? On motivation and science
In the idealized science world, research is done for the sole purpose of finding truth, and doesn't have any ulterior motives for anything else. Papers are published without regards to…
Good science on national IQs
Shae Mclaughlin (SM) has a new blogpost attacking national IQs. I thought it would be suitable to provide the usual rebuttal since I don't see any such post yet. She…
Understanding audit (resumé) studies
John B. Holbein is a mild mannered economist on X. 2 days ago he posted a long post on Lee Jussim's new review paper of racial discrimination in hiring. Jussim…
Whose benefit of the doubt?
In selection contexts (e.g. hiring), there is the notion of the benefit of the doubt. If you have some non-meritocratic desires for selection, and you find yourself with 2 otherwise…
Robert Sternberg returns
Robert Sternberg has licked his wounds and returned to the fray. OK, it was limited to some viral video (2M), but nevertheless. Here's a repost of it: Not really worth…
European women and migrants: are children the solution?
I saw this funny and one might say provocative study: Schahbasi, A., Huber, S., & Fieder, M. (2021). Factors affecting attitudes toward migrants—An evolutionary approach. American Journal of Human Biology,…
Do national IQs predict differently across regions?
Going back to Lyman Stone's tweet: in fact, national IQ’s predictiveness of GDP is often very weak within-region, i.e. within-ancestry-groups. measurement error is obviously a plausible part of this, but…