Smoking and intelligence in Australia

It is difficult to test the link between intelligence and smoking directly. A hypothetico-deductive approach is therefore used and it is hypothesized that members of the Mensa club will have low rates of smoking. A postal survey of 402 Australian Mensa members revealed incidence rates of 22% for males and 15% for females. This is roughly half the general population incidence rate in both Australia and the U.K. It is concluded that the results do support the view of smoking as a sign of general social disadvantage.