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 […]

So, I posted this: Abstract We used data from the PING study (n≈1200) to examine the relationship between cognitive ability, socioeconomic outcomes and genomic racial ancestry. We found that when genomic ancestry was not included in models, self-reported race/ethnicity (SIRE) was a useful predictor of cognitive ability/S, but when genomic ancestry was included, SIRE lost […]

A friend of mine and his brother just received their 23andme results. In a table they look like this (I have added myself for comparison): Macrorace Bro1 Bro2 Emil European 52.6 53 99.8 MENA 42.5 41.3 0.2 South Asian 2.8 3.4 0 East Asian & Amerindian 1.1 0.7 0 Sub-Saharan African 0.5 0.5 0 Oceanian […]

UNFINISHED ANALYSIS. POSTED HERE TO ESTABLISH PRIORITY. MORE TO FOLLOW! Updated 2015-12-04 Remains to be done: Admixture analysis (doing) Proofreading and editing Deciding how to control for age and scanner (technical question) Abstract I explore a large (N≈1000), open dataset of brain measurements and find a general factor of brain size (GBSF) that covers all […]

Some time ago a new paper came out from the 23andme people reporting admixture among US ethnoracial groups (Bryc et al, 2014). Per our still on-going admixture project (current draft here), one could see if admixture predicts academic achievement (or IQ, if such were available). We (that is, John did) put together achievement data (reading […]

For those who have been living under a rock (i.e. not following my on Twitter), John Fuerst have been very good at compiling data from published research. Have a look at Human Varieties with the tag Admixture Mapping. He asked me to help him analyze it and write it up. I gladly obliged, you can […]

We have a neanderthal genome. It is possible to estimate an individuals neanderthal ancestry. 23andme does this. It is possible to use the admixture study design to see what the effects of some kind of ancestry origin is. What are we waiting for? They can use the SNP datasets they have used GWA studies for […]