## 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 all educational levels. A Jensen coefficient is the correlation of subtests’ g-loadings with a vector of interest. I hypothesized that the personal Jensen coefficient from…

## 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. Figure 1 gives an impression of this relationship.”   Figure 1 shows regional IQs, not GDP relationships. “We still depend on these descriptive methods of…

## Is the summed cubes equal to the squared sum of counting integer series?

Martin Gardner is 100 today. 1³+2³+3³+4³ = 100 = (1+2+3+4)². Does the sum of the first numbers cubed always equal the square of their sum? — Matt Parker (@standupmaths) October 21, 2014 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”]…

## 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 believe it is sincere. Some quotes below. Abstract: While the open-access (OA) movement purports to be about making scholarly content open-access, its true motives are…

## 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 a good idea to just rely on Wikipedia. So i did the best thing: fetched both the data from Wiki and the data from the…

## 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 of lots of other things (accidents, warfare, parasites/contagious disease, hunger/thirst), they don’t ling long enough to get cancer. I already had life expectancy data from…

## 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 a fair share now a days. And just as g has been shown to have great predictive power in large meta-analyses in a variety of…

## 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 OCEAN means and SDs. These two are nearly uncorrelated (.07). As for factor strength, they are not too bad: > DF.OCEAN.mean.omega Omega Call: omega(m =…