There is a lot of research on the link between crime and cognitive ability. (For criminal outcomes, see the problems in my previous post.) E.g. Is the Association between General Cognitive Ability and Violent Crime Caused by Family-Level Confounders? We linked longitudinal Swedish total population registers to study the association of general cognitive ability (intelligence) […]

Many people listen to some kind of music while working, or perhaps to some kind of colored noise. Many people will swear that this works. There are multiple ways it can work: Increases work performance. Increase work enjoyment (positive mood effect). Makes work seem to go faster (time experience effect). They are not necessarily causally […]

Noah Carl has been investing the relationship between cognitive ability and political opinions aside from the usual confused 1-axis left-right model. Specifically, looking at the economic freedom and personal freedom axes (á la this test). He did this in two datasets so far, covering the UK and the US: Verbal intelligence is correlated with socially […]

Normally, testing colorism or other causal models of why human racial traits have nonzero relationships to socioeconomic outcomes requires that one has the following data: Measure of racial ancestry Measures of racial appearance Measures of socioeconomic outcomes such as income or educational attainment Path model wise, one can think of it this way: Discrimination models […]

In a recent paper, Beaver et al looked at the relationships between crime, gender and sexual orientation: This study examined the association between sexual orientation and nonviolent and violent delinquency across the life course. We analyzed self-reported nonviolent and violent delinquency in a sample of heterosexual males (N=5220–7023) and females (N=5984–7875), bisexuals (N=34–73),gay males (N=145–189), […]

Data from the OKCupid project. In light of a recent paper examining who prefers to date within their own religion, I recalled that there was a question about this in the OKCupid dataset, except that it is for race: “Would you strongly prefer to go out with someone of your own skin color / racial background?” […]

OKCupid dataset (not public right now, contact me if you want the password). Draft paper: I looked at whether there was evidence for cognitive dysgenics in the OKCupid dataset. The unrepresentativeness of the dataset is not much of a problem here: indeed we are very much interested in younger people looking to date since […]

Some people claim that the climate has direct causal influences on income, cognitive ability and so on. Usually, these academics just regress IQ on climate variables at the country or US state-level. However, it is possible to do it at the US county-level too. Unfortunately, it is difficult to find climate data by the county. […]

In the interest of publishing null findings: I tried estimating US state IQs from the mean cognitive ability for users in the OKCupid dataset. However, this did not work out. This was a far shot to begin with due to massive self-selection and somewhat non-random sampling. Actually, what I really wanted was another way to […]

I am doing an S factor study of US counties in the usual way. For that reason, I need some kind of county-level cognitive ability estimate. I know that this is possible to create using the Add Health database, but that the data are not sharable. However, it may be possible to do some tricks, […]