What exactly is age heaping and what use is it?
What is age heaping? Number heaping is a common tendency of humans. What this means is that we tend round numbers to the nearest 5 or 10 (those of us…
Can we make humans that are 1,000 SDs smarter than current humans?
Note that perhaps there should be doubt quotation marks around human in the title. Would humans with a 1,000 SD increase in (general) cognitive ability (CA) really be human? Steve…
The performance of African immigrants in Europe: Some Danish and Norwegian data
Due to lengthy discussion over at Unz concerning the good performance of some African groups in the UK, it seems worth it to review the Danish and Norwegian results. Basically,…
IQ and socioeconomic development across Regions of the UK: a reanalysis
Abstract A reanalysis of (Carl, 2015) revealed that the inclusion of London had a strong effect on the S loading of crime and poverty variables. S factor scores from a…
Interesting non-linear relationship between TV watching, age and reading comprehension
Some time ago, I stumbled upon this paper: Searls, D. T., Mead, N. A., & Ward, B. (1985). The relationship of students' reading skills to TV watching, leisure time reading,…
The general socioeconomic factor among Colombian departments
Abstract A dataset was compiled with 17 diverse socioeconomic variables for 32 departments of Colombia and the capital district. Factor analysis revealed an S factor. Results were robust to data…
An S factor among census tracts of Boston
Abstract A factor analysis was carried out on 6 socioeconomic variables for 506 census tracts of Boston. An S factor was found with positive loadings for median value of owner-occupied…
Why do persons from higher mean IQ populations do better even after selection?
Abstract It has been found that workers who hail from higher socioeconomic classes have higher earnings even in the same profession. An environmental cause was offered as an explanation of…
Presentation for my talk for LCI15
Posted here as a sneak peak for those not coming, and for easy access for myself.
The S factor in Brazilian states
Abstract Sizeable S factors were found across 3 different datasets (from years 1991, 2000 and 2010), which explained 56 to 71% of the variance. Correlations of extracted S factors with…
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