A British government study found that smarter Scottish soldiers were more likely to die than dumber ones in WWII:
The 491 Scots who died and had taken IQ tests at age 11 achieved an average IQ score of 100.8. Several thousand survivors who had taken the same test - which was administered to all Scottish children born in 1921 – averaged 97.4.
A previous study found a fall in intelligence among Scottish men after the war, and at the time Deary's team theorised that less intelligent men were more likely to be rejected for military service. The new study appears to refute that suggestion. Men who didn't serve were more intelligent than surviving veterans, and of equal intelligence to those who died.
In related news, our governor, who still hasn't resigned, has announced a press conference today at 2pm.