People from higher social classes believe themselves to be more capable than those of lower class, even if they are equally as qualified. In each study, they discovered that those from higher social classes tended to be more overconfident. 'Posh privilege' occurs when people of a higher social class perceive themselves to be better than those of lower classes — even if such is unfounded. In one, the researchers gave participants a trivia test and those from a higher social class thought that they did better than others. Not only were the higher social class students more confident, this overconfidence was interpreted by the judges who watched their videos as greater competence.
Source: Daily Mail May 20, 2019 13:45 UTC