A percentile rank shows where one person's score falls compared with everyone else's scores in a distribution.
A percentile rank of 93 means the score is higher than 93% of the scores in the comparison group.
A percentile rank tells you where a score falls compared to others, not whether it is good or bad: a 90th-percentile reaction time is slower than 90% of participants.
Key terms
percentile rank
The percentage of scores in a distribution that fall below a specific score.