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…
Examining the S factor in Mexican states
Paper PDF Abstract Two datasets of socioeconomic data was obtained from different sources. Both were factor analyzed and revealed a general factor (S factor). These factors were highly correlated with each other (.79…
The S factor in the British Isles: A reanalysis of Lynn (1979)
Read the study PDF. Emil O. W. Kirkegaard, Ulster Institute for Social Research. Email: emil@emilkirkegaard.dk Abstract I reanalyze data reported by Richard Lynn in a 1979 paper concerning IQ and socioeconomic…
Transracial adoption study: Lindblad et al, 2003
As Jason Malloy has mentioned, it is strange that in the race intelligence debates, people usually cite the same few studies over and over: Shortly after writing that post, I…
S and G in Italian regions: Re-analysis of Lynn’s data and new data
Abstract The S factor in 21 Italian regions was examined by reanalyzing data published by Lynn (Lynn, 2010) as well as new data compiled from the Italian statistics agency (7…
Examining the S factor in US states
Abstract A dataset of 25 diverse socioeconomic indicators for US states was compiled and subjected to factor analysis. Results showed that Washington DC was a strong outlier, but if it…
The S factor in China
Study PDF. Abstract I analyze the S factor in Chinese province-level units using data obtained from Lynn and Cheng (2013) as well as new data obtained from the Chinese statistical…