Study: Clever people are more trustworthy!

The survey, which has been running since the early 1970s, examines peoples' social status, their behaviours and social attitudes as well as intelligence. The researchers found a strong correlation between trust and intelligence.

'One explanation is that intelligent individuals are better at evaluating others' trustworthiness, meaning that they tend to select into relationships with people who are unlikely to betray their trust,' they wrote.

'Another possible explanation is that intelligent individuals are less likely to trust people to do things that someone being trusted might have a strong incentive not to do (e.g. repay a large sum of money).