Scores and Placements
The i-Ready Diagnostic provides a complete picture of student performance with scores that relate to their grade-level and national norms. The scores that result from the Diagnostic describe student performance against grade-level criteria as well as against their peers. Information about Diagnostic scoring and placement is available below. For information about Diagnostic norms, please visit the Diagnostic norms page on this site.
Placement levels provide a criterion-referenced indication of a student’s performance based on grade level. It is determined based on specific scale score ranges for each chronological grade (i.e., the grade in which the student is currently enrolled). Students receive a placement that indicates if they are above grade level, on grade level, one grade level below, or two or more grade levels below.
i-Ready Diagnostic Grades K–12 Scale Score Placement Tables
Information on i-Ready’s grade-level placements, including the definitions and scale scores associated with each placement.
Greater Insight into Student Performance
i-Ready’s 5-Level Placements were developed to provide better insight into student performance relative to grade-level proficiency. They mirror the same placements that are used to calculate student growth in the i-Ready growth model.
Lexile® and Quantile® Measures
Lexile®, Lexile® Framework, Quantile®, and Quantile® Framework are trademarks of MetaMetrics, Inc. and are registered in the United States and abroad.
Copyright © 2023 MetaMetrics, Inc. All rights reserved.
Using Quantile® Measures from the Diagnostic Results Report
Curriculum Associates partnered with MetaMetrics to conduct a linking study between the i-Ready Diagnostic for Mathematics and the Quantile® Framework for Mathematics.
Using Lexile® Measures from the Diagnostic Results Report
Curriculum Associates partnered with MetaMetrics to conduct a linking study between the i-Ready Diagnostic for Reading and the Lexile® Framework for Reading.
Reading and Mathematics Difficulty Indicators
The i-Ready Mathematics Difficulty Indicator (iMDI)
Data from the i-Ready Diagnostic for Mathematics can be used with iMDI cut scores to determine which students in Grades K–8 exhibit a mathematics difficulty.
The i-Ready Reading Difficulty Indicator (iRDI)
Data from the i-Ready Diagnostic for Reading can be used with cut scores from the iRDI to determine which students in Grades K–8 exhibit a reading difficulty.