Percentile rank relative to raw scores change over seasons

The benchmark raw scores and percentile rank match up by quarter. If you look at the Detailed Percentiles Table or the Progress Monitoring Scoring Guidelines on the Reports page, you will see they are organized to match up within a point on the season rather than the month, assuming that student growth is linear.

Benchmarks are roughly: Fall – Sept 15th, Winter – Jan 15th, and Spring – May 15th. with no testing in the summer. If you plotted those out by looking at the individual student graphs, this is where the percentile lines (10th, 20th, 50th, etc) are determined. They are used to help calculate student goals (e.g., aim lines), and thus, show if a student is growing at a faster (or slower) rate than needed/desired. Say a student begins Grade 5 at the 10th percentile, their trend should be steeper moving toward 20th/50th percentile if he/she is to catch up with their grade-level peers by spring.