In a norm-referenced assessment, individual student's scores are reported relative to those of the norming population. This can be done in a variety of ways, but one way is to report the average age of people who received the same score as the individual child. Thus, an individual child's score is described as being the same as students that are younger, the same age, or older than that student (e.g. a 9 year old student my receive the same score that an average 13 year old student does, suggesting that this student is quite advanced).