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

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

Program Features

Trusted Accuracy

Trusted by educators across the nation; supported by experts

Get an assessment trusted by more than one million educators nationwide and highly rated by NCII for both academic screening and progress monitoring in all grades and subjects for Grades K–8.

Built to provide the precision teachers want

Deeply understand what students know and need next using one adaptive assessment to measure essential skills.

Help predict what students know.

i-Ready is highly correlated with the Smarter Balanced Assessment (SBA) and many state assessments.

Streamlined for All

Save time with an integrated platform for assessment and instruction.

Quickly get the information and resources you need with fewer clicks, so you can spend less time guessing.

Help make data collection as efficient as possible.

Learn what's coming for the 2026–2027 school year.

Get a clear, comprehensive view of student performance relative to grade-level expectations.

Teachers, students, and families can easily understand performance both relative to grade-level expectations and compared to peers.

Confident Teaching

Spark high expectations to get students to proficiency and beyond.

Consistently convey high expectations and provide a path to proficiency with Stretch Growth®.

Connect deep student insights directly to instruction.

Explore i-Ready's connected teacher-led core and supplemental instruction.

Drive growth with tailored recommendations and tools.

Get instructional resources and smart groupings to support every student.

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.

Read Now

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

Tech and Learning Best of Show ISTE Live 24 Winner badge.

The Journal New Product Award 2022 badge.

What's Included

Buying Information

Instructional Resources

Tools for Instruction
Tools for Scaffolding Comprehension

i-Ready Diagnostic for Mathematics in English and in Spanish (Grades K–12)

Number and Operations
Algebra and Algebraic Thinking
Geometry
Measurement and Data

i-Ready Diagnostic for Reading in English (Grades K–12)

Phonological Awareness
Phonics
High-Frequency Words
Vocabulary
Comprehension: Literature
Comprehension: Informational Text

Reporting

Student-, class-, school-, and district-level reporting
National norms
Overall score and criterion-referenced grade-level placements
Annual growth measures, including Typical Growth and Stretch Growth
Lexile® and Quantile® measures
Can Dos and Next Steps

Our Professional Learning suite offers collaborative live sessions and curated, on-demand digital resources to help educators drive meaningful student outcomes with their Curriculum Associates programs.

Invest in Your Impact