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i-Ready Diagnostic

One Measure to Know More

Explore the adaptive assessment highly rated by the National Center on Intensive Intervention (NCII) and trusted by educators to deliver accurate, actionable insights to more than 14 million students.

The i-Ready Diagnostic Will Be Renamed i-Ready Inform and Get Shorter in School Year 2026–2027Learn More
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Overview

Help Make Every Minute Count for What Matters Most

At the heart of the i-Ready Assessment suite, the adaptive i-Ready Diagnostic helps make every minute count for what matters most with trusted, accurate insights in one program that's streamlined for all so you can teach with confidence. i-Ready can help you easily understand precisely what students can do at the domain level. Growth goals backed by validity and reliability evidence offer every student a realistic path toward proficiency. Powered by the i-Ready Diagnostic, teachers can deliver multiple personalized learning opportunities tailored to their students as a class, small group, or individually, while easy-to-understand reports help district leaders identify bright spots, support growth opportunities, and allocate resources.
  • Program Type:Assessment
  • Subject:Literacy, Mathematics
  • Grade(s):K–12
  • Language:English, Spanish
  • Format:Digital

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i-Ready Diagnostic Is Highly Rated in Grades K–8 by the NCII

i-Ready Diagnostic received positive reviews on the key criteria of Reliability, Validity, and Classification Accuracy in Grades K–8 Mathematics and Reading for NCII's Academic Screener Tools Chart.

Testimonials

i-Ready provides a lot of good resources for teachers to graph student growth. It’s a very visual way to show data and easy for families to understand. When students see where they’re starting and where they’ve grown, I think that increases their expectations because they see that they can do it, and they can see where they want to be.

— Chris Guerra, Teacher

Testimonials

This is a very comprehensive solution. I like i-Ready's adaptive diagnostic features and the fact that it is a connected ecosystem and not a set of disparate tools.

— Tech & Learning Best of Show Award Judge, ISTE

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