Quantile® range – Star Help

A Quantile® range represents the difficulty range that optimizes the likelihood of a successful instructional experience. It is calculated by adding and subtracting 50 points from a student's Quantile® measure. For example, a student with a Quantile® measure of 738Q would have a Quantile® range of 688Q–788Q.

A student with a Quantile measure of 738 Q. The student's Quantile range is calculated from 50 points below that figure to 50 points above it, giving a range of 688 Q to 788 Q.

If the Quantile® measure Preference is turned on, students' Quantile® measure and Quantile® range can be seen in the following reports:

In some cases, a student’s Scaled Score may correspond to only a single value in the Quantile® range; in these cases, the “range” shown on the report will be the same number (for example, 1400Q–1400Q).

To better understand Quantile® measures, please visit the MetaMetrics site at https://www.quantiles.com/educators/understanding-quantile-measures/what-is-a-quantile-measure/