Warne, R. T. (2018). An Evaluation (and Vindication?) of Lewis Terman: What the Father of Gifted Education Can Teach the 21st Century. Gifted Child Quarterly, 0016986218799433. Russell Warne has a new piece out reviewing the life and criticism of Lewis Terman. While Warne generally defends Terman against criticism, he thinks that Terman went beyond his […]

This post covers some stuff already covered by others, but more briefly. Two studies of interest: Riemann, R., Angleitner, A., & Strelau, J. (1997). Genetic and Environmental Influences on Personality: A Study of Twins Reared Together Using the Self- and Peer Report NEO-FFI Scales. Journal of Personality, 65(3), 449–475. doi.org/10.1111/j.1467-6494.1997.tb00324.x Connelly, B. S., & Ones, […]

Back in January, Steve Hsu did an interview with Daphne Martschenko who is a phd candidate at Cambridge in education. She’s basically doing science journalism on behavioral genetics as far as I can tell. Now there’s a new interview up. I have some comments to it because Steve was a little too nice. Bias from […]

I am watching Brian Boutwell’s (Twitter, RG) talk at a recent conference and this got me thinking. What are we measuring? As far as I know, there are typically two outcome variables used in criminological studies: Official records convictions. Self-reported criminal or anti-social behavior. But exactly what trait are we trying to measure? It seems […]

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 this because of this study link.springer.com/article/10.1007/s10519-015-9745-3 and because ordinary siblings are about as similar as DZ twins who did share the uterus at the same […]

Link: 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 days) stage; of them, y will still be alive & not grossly abnormal freeze the embryos optional: embryo selection using quality and PGS unfreeze & […]

Download: www.libgen.net/search.php?search_type=magic&search_text=making+sense+of+heritability&submit=Dig+for   This is a GREAT book, which goes down to the basics about heritability and the various claims people have made against it. Highly recommended. Best book of the 29 i have read this year.   The denial of genetically based psychological differences is the kind of sophisti- cated error normally accessible only […]

This book turned out to be not what i had expected, but still interesting. Not sure why it got all the bad press. It’s behavior realistic but focuses on the environment which is what the author finds interesting. I think genetics is more interesting, but this is interesting too. The Nurture Assumption Why Children Turn […]