Is sharing the chorion important? (No)
In the comments on this SlateStarCodex post, someone is questioning my claim that sharing the chorion (what is that?) is unimportant: Emil: Uterine environment stuff is not important. We know…
Some numbers on non-shared ‘environment’ effects
https://slatestarcodex.com/2016/03/16/non-shared-environment-doesnt-just-mean-schools-and-peers/ Scott Alexander has a new post out summarizing the interpretations of what constitutes non-shared environment in the ACE model estimates from standard (MZ-DZ) twin studies. I'm happy that he…
Correcting for n-level discretization?
When one has a continuous variable and then cuts it into bins (discretization) and correlates it with some other variable, the observed correlation is biased downwards to some extent. The…
The performance of immigrants from Yugoslavia in Denmark and Norway
This is actually an older post, but by accident I posted it on the Danish language sister blog. https://twitter.com/JayMan471/status/639768391906144256 I don't know what study that is, however, I do have…
Admixture mapping assisted GWAS
Medical researchers have noticed that some diseases differ by SIRE (self-identified race/ethnicity) groups which differ by genomic (racial) ancestry. Hence, when genomic measures became available (last 15 years or so),…
Does genomic prediction work?
Comment on: http://infoproc.blogspot.dk/2016/02/missing-heritability-and-gcta-update-on.html First, skim this paper: http://journals.plos.org/ploso... Genomic prediction works fairly well. This recent paper does a cross-data cross-method analysis of genomic prediction methods using 10 fold cross-validation to…
Comments on Gwern’s “Embryo selection for intelligence”
Link: http://www.gwern.net/Embryo%20selection Embryo selection an add-on to IVF [his summary]: harvest x eggs fertilize them and create x embryos culture the embryos to either cleavage (2-4 days) or blastocyst (5-6…
Comments on Noah Carl’s new study: IQ and socio-economic development across local authorities of the UK
Paper is on Scihub. There are a few researchers engaged in the cognitive sociology adventure. Aside from myself and John Fuerst, Noah Carl has also taken up the task. There…
Causality, transitivity and correlation
Disclaimer: Some not too structured thoughts. It's commonly said that correlation does not imply causation. That is true (see Gwern's analysis), but does causation imply correlation? Specifically, if "→" means…
Stereotypes are relevant for judgments about individuals even when one has individualized information
Title says it all. Apparently, some think this is not the case, but it is a straightforward application of Bayes' theorem. When I first learned of Bayes' theorem years ago,…
- Go to the previous page
- 1
- …
- 86
- 87
- 88
- 89
- 90
- 91
- 92
- …
- 127
- Go to the next page