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.…
Is the summed cubes equal to the squared sum of counting integer series?
https://twitter.com/standupmaths/status/524470545199673344 R can tell us: DF.numbers = data.frame(cubesum=numeric(),sumsquare=numeric()) #initial dataframe for (n in 1:100){ #loop and fill in DF.numbers[n,"cubesum"] = sum((1:n)^3) DF.numbers[n,"sumsquare"] = sum(1:n)^2 } library(car) #for the…
Jeffrey Beall’s anti-open access tirade
I came across this one. On the one hand it seems written in a serious tone. On the other hand, the claims are so ridiculous that it is hard to…
Cancer rates: Part 2, does alcohol consumption have incremental predictive power?
Same guy proposed another idea. Wikipedia has data here. However, since i had previously seen that people fudge data on Wikipedia articles (e.g. this one), then maybe it was not…
Cancer rates and life expectancy?
An online acquaintance asked me me to find data about these two and look for a relationship. It stands to reason that if you have a country where people die…
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…
Paper out (some time ago): Are Headstart gains on the g factor?: A meta-analysis
Jan te Nijenhuis, Birthe Jongeneel-Grimen and Emil O. W. Kirkegaard. Are Headstart gains on the g factor?: A meta-analysis. Intelligence. Volume 46, September–October 2014, Pages 209–215 If all goes…
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…
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