Handbooks of intelligence
Sometimes, one sees references to this or that handbook of intelligence. I have not previously read any of these, not even in part, because I could not find any anywhere…
Review: The Roma: A Balkan Underclass (Jelena Cvorovic)
https://www.goodreads.com/book/show/23621169-the-roma Richard Lynn is so nice to periodically send me books for free. He is working on establishing his publisher, of course, and so needs media coverage. In this case,…
Admixture in the Americas: Introduction, partial correlations and IQ predictions based on ancestry
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…
New paper out: The personal Jensen coefficient does not predict grades beyond its association with g
Found null results for a proposed metric (actually two). In the spirit of publishing failed ideas, I wrote this up. Abstract General intelligence (g) is known to predict grades at…
Meisenberg’s new book chapter on intelligence, economics and other stuff
G.M. IQ & Economic growth I noted down some comments while reading it. --- In Table 1, Dominican birth cohort is reversed. “0.70 and 0.80 in world-wide country samples.…
Does conscientiousness predict PISA scores at the national level? A cautious meta-analysis
Just a quick write-up before I write up a paper with this for ODP. Introduction Altho general cognitive ability (g) has received the most attention by differential psychologists, personality receives…
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…
New paper out: Crime, income, educational attainment and employment among immigrant groups in Norway and Finland
http://openpsych.net/ODP/2014/10/crime-income-educational-attainment-and-employment-among-immigrant-groups-in-norway-and-finland/ Abstract I present new predictive analyses for crime, income, educational attainment and employment among immigrant groups in Norway and crime in Finland. Furthermore I show that the Norwegian data…
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…
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