In an experiment, the researcher asked college students to recall their grades in high school and told them that the researcher would get their real grades from high school, so it didn't make any sense to lie. The results showed that the participants recalled five-fifths of their grades. All of them are inconsistent with the actual situation, and the probability of being mistakenly recorded for different grades is also different. The higher the score, the less likely to be mistaken: when you get an A. It can always be accurately recalled, but when you get an F, it is hard to remember.
The conclusion that the grades that people can remember may be better than the real grades can be drawn from the information provided.