I oppose coercive eugenic policies, so don’t try to quote mine my blunt discussion as support for such policies. Hollywood has a new anti-eugenics movie out, called The Thinning. There’s a trailer, and it will likely spoil the entire movie for you, but I reckon it will be crappy anyway, so: For those too lazy […]

On the commentariat here, and why I don’t think I can be associated with this community, despite liking the blog. My reply, as found in the comments. Most of it seems to be just rewritten stuff from RationalWiki’s collection of inaccuracies. I repost my reply below here for prosperity, and also for those too lazy […]

First we had 3 laws, then a 4th. I’ll propose a 5th: All human behavioral traits are heritable. The effect of being raised in the same family is smaller than the effect of genes. A substantial portion of the variation in complex human behavioral traits is not accounted for by the effects of genes or […]

Note: I found two persons to do this so far. 1. Skills required Ability to copy paste from this Wikipedia page into a spreadsheet. Ability to find the elementary information for a study. 2. Job description A meta-analysis relies on a dataset of information about other studies. One of us collected a large number of […]

Because I hate seeing solid contributions go unnoticed. Few remember Barbara Stoddard Burks for the early pioneer of behavioral genetics she was. She doesn’t even have a Wikipedia article. I will fix that shortly. In their article on the sociologist’s fallacy in interpretation of familial data, Rowe and Rodgers (1997) mention Burks thus: The issues […]

www.gwern.net/Embryo%20selection#counteracting-dysgenics Gwern has a very long and detailed post/page on embryo selection and related matters. You should definitely read it. He has just added a new section on counteracting dysgenics — the genetic evolution of undesirable traits — and asked for my comments/thoughts. The background for the discussion are the recent genomic findings supporting dysgenic […]

Nisbett’s 2009 book on intelligence, Intelligence and how to get it, is a goldmine of stupid claims that one can quote-mine for introduction and discussion sections of papers. For instance, Nisbett tries to argue that brain size is not causal for intelligence! He writes: The correlation between cranial capacity and IQ is probably about .30-.40 […]

Doing some background reading on genomics topics such as: Cross-population predictive validity of genomic scores (polygenic scores). LD-decay. Causal variant tagging / distribution of causal variants / genetic architecture. Admixture mapping accuracy given LD decay. Implications of the above for research into genetic causes of group differences in polygenic traits. Implications of the above for […]

In many ways, my science — and my colleagues’ science — generally involves collecting evidence for obvious hypotheses that are mainly denied by leftist-leaning people (more precisely, egalitarian). Here’s a brief review. Stereotypes about major demographic groups are quite accurate Jussim of course already showed this, but since it’s still frequently denied, seems that we […]

In evolutionary biology, there is a hypothesis about sex ratios: Trivers-Williard hypothesis. It has been noted that males have higher dispersion in their fertility than females have, a finding that is also true in humans (one, two, three). If resources are related to fertility — which they are in many species and used to be […]