grading

Mrs Bigger, who started as a white belt, said she had been "a bit nervous" about attempting her first grading.

In order to ensure compliance, the office conducts investigations and reviews into areas like grading, financial aid, admission and recruitment.

Figures among AI misuse remain low, but academics say it poses a real challenge around keeping the grading process "fair".

Others hope they change the grading curve to allow a higher percentage of test takers to pass the exam.

The process involves sending the card to a grading company who analyse it for signs of wear and then award it a graded score, usually out of 10, which denotes its quality and potential value.