Do gun ownership predict homicides taking race into account?
You may have seen a plot like this one: The reader is left to interpret that guns cause homicides. It's correct if we include suicides but it's not true for…
Consequences of racial composition changes in USA 1970-2023
Some years ago, I gave a good idea of a study to a friend, and he did it. But then he just never published his study anywhere, it's just sitting…
Classification error and relative rates
Our latest big project on mugshots and race misclassification by the US law enforcement. It is currently going viral on X: You can start by reading the thread summary, or…
Norway’s big royal family marriage experiment
Historically, noble and especially royal families refused to let their children marry commoners. This would risk bad blood they said (according to movies). This practice flies in the face of…
Race and crime in Japan
(Guest post by anon.) Many are aware of disparities in crime rates among ethnic and racial groups in Western countries. But what patterns emerge in Japan, a country far from…
Migrant crime in Germany, redux
This new study is making the rounds, also in the English speaking world (e.g. Reuters): Higher proportion of migrants does not mean more crime, German institute says BERLIN, Feb 18…
The benefits of marriage
If we have to name the single largest problem with social science in itself it is that of confounding (in real-life social science, the bigger issue is probably statistical cheating…
Direct genetic evidence for ethnic differences in aggressiveness
My recent blogpost about Africans propensity to violence got some attention. In the post I noted that direct evidence was mostly missing. I've done some further reading, and discovered that…
Africans, violence and genetics
Over on Twitter/X, science journalist i/o writes: I get replies all the time under my posts that suggest or claim that wildly disproportionate black violence and the apparently unmovable US…
Is spanking your kids good or bad for them?
Administering physical (corporal) punishment has a long history. Public flogging or whipping used to be commonplace, and now they are mostly illegal, and we regard foreign countries who employ these…