General Discussion

In fact, a study by psychologists from Marist College found links between how fluent a person is in the English language and how fluent they are in swearing.

The former - verbal fluency - can be measured by asking volunteers to think of as many words beginning with a certain letter of the alphabet as they can in 1 minute.

People with greater language skills can generally think of more examples in the allotted time. Based on this approach, the researchers created the swearing fluency task. This task requires volunteers to list as many different swear words as they can think of in 1 minute.

By comparing scores from both the verbal and swearing fluency tasks, it was found that the people who scored highest on the verbal fluency test also tended to do best on the swearing fluency task. The weakest in the verbal fluency test also did poorly on the swearing fluency task.

https://www.sciencealert.com/swearing-is-a-sign-of-more-intelligence-not-less-say-scientists