International general factor of personality? yes, but…
I merged the dataset from Schmitt et al (2007)'s paper about OCEAN traits in 56 countries with the rest of the megadataset. Then i extracted the first factor of the…
Causal effect of education on IQ scores using the discordant twin design?
Recently, the twin-control design has been used to test causal models (e.g. exercise→happiness, exercise→¬depression/anxiety symptoms, casual sex→depression/suicidal thoughts). The theory is simple. Suppose we do a standard cross-sectional design study…
Assortative mating for general intelligence: A meta-analysis
Can we crowd-fund a meta-analysis? Simply find studies that report summary statistics, and add them to the dataset. The data so far: Study N r Willoughby (1927, 1928), A 90…
The hereditarian hypothesis is almost certainly true
And I'm not even referring to the latest results from any Pifferian methods (e.g. this). Currently there are many large GWAS for IQ/educational attainment/other g proxies that have data gathered…
Rinderman’s 2013 survey of experts in intelligence research
I was planning to re-do the Snyderman et al survey from 1987, but someone beat me to it (very nice). 2013 survey of expert opinion on intelligence
Comment on CPGGrey’s new video on the future of automatization
https://www.youtube.com/watch?v=7Pq-S557XQU Posted on reddit. This is your best film yet, and that says something. For automatization for clinical decisions, it has been known for decades that simple algorithms are…
Bouchard’s new review paper on Genes, Evolution, Intelligence is excellent!
Seriously. Read it. Behavior Genetics (Impact Factor: 2.61). 03/2014; DOI: 10.1007/s10519-014-9646-x Source: PubMed ABSTRACT I argue that the g factor meets the fundamental criteria of a scientific construct more fully than…
The IQ Controversy, the Media and Public Policy (1988, Snyderman, Rothman)
https://www.goodreads.com/book/show/2404700.The_IQ_Controversy_the_Media_and_Public_Policy The I. Q. Controversy The Media and Public Policy Stanley Rothman 323p_0887381510 I read this becus i want to do a follow-up study like this. Both analyzing media…
New paper out: Criminality among Norwegian immigrant populations
http://openpsych.net/ODP/2014/04/criminality-among-norwegian-immigrant-populations/ Abstract A previous study found that criminality among immigrant groups in Denmark was highly predictable by their countries of origin’s prevalence of Muslims, IQ, GDP and height. This study…
Towards autogenerated IQ batteries: Part 1, number series
I have long had an idea that one needs to be able to generate problems for IQ batteries automatically. Some things are very easy to generate. Digit spans just require…