Quantile® Range

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.

Quantile® Range can be seen in the Diagnostic Report (for Star Math Enterprise and Star Math Progress Monitoring assessments) if Yes is selected for the Quantile® Measure option.

Note: Quantile® Measures and Ranges are provided only for students in grades 3–8.

To better understand Quantile® Measures, please visit the MetaMetrics site at

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