Percentile Rank (PR) and Percentile Rank Range

Percentile Rank scores range from 1 to 99 and express student ability relative to the scores of other students in the same grade. For a particular student, this score indicates the percentage of students in the norms group who obtained lower scores. For example, if a reading assessment gave a student a Percentile Rank of 85, the student's reading skills are greater than 85% of other children in the same grade.

A graph showing Scaled Scores on the x-axis, ranging from 0 to 1400, and Percentile Ranks on the y-axis, ranging from 0 to 100. The line stays flat at a Percentile Rank of 0 until just past a Scaled Score of 200, at which point it makes a sharp upturn, reaching a Percentile Rank of 100 just before a Scaled Score of 1000, at which point it flattens out again.

The Percentile Rank Range reflects the amount of statistical uncertainty in a student's Percentile Rank score. If the student were tested multiple times or finished a number of assessments in a short period of time, the score would likely fall in this range.

PR can be found on the following reports:

* Percentile Rank Ranges can also be found on these reports.