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i-Ready Diagnostic
One Measure to Know More
Explore the adaptive assessment highly rated by NCII and trusted by educators to deliver accurate, actionable insights to more than 14 million students.
Overview
Know Students Deeply with a Powerful Adaptive Assessment
At the heart of the i-Ready Assessment suite, i-Ready Diagnostic helps you know your students deeply with a principled approach to design built to provide comprehensive insights and differentiated goals to accelerate growth. 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 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
Principled Design
Help Predict What Students Know
Know what students need next with valid, reliable assessment data grounded in research.
Leverage Adaptive Assessment
Understand precisely what students know with thousands of high-quality items aligned to academic standards.
Seamlessly Connect Data to Instruction
Meet the unique needs of each learner with assessment data that fully integrates with instructional options.
Comprehensive Insights
Access Easy-to-Use Reports
Get reports designed for decision making at the classroom, school, and district levels.
Know How Students Compare to Their Peers
Complement criterion-referenced data with norm-referenced data to know how students compare to their peers.
Understand Each Student's Grade-Level Performance
See each student’s grade-level performance by domain with criterion-referenced data.
Accelerated Growth
Motivate Your Students to Reach Ambitious Yet Attainable Goals
Informed by the real growth data of millions of students, i-Ready's growth measures provide ambitious yet attainable goals that propel students forward.
Pave a Path toward Proficiency and Beyond
Offer each student an attainable path toward proficiency and beyond, backed by validity evidence.
See Automated Goals Tailored to Each Student
i-Ready provides Typical Growth and Stretch Growth® goals automatically tailored to each student.
Testimonials
What's Included
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
Lexile® and Quantile® are trademarks of MetaMetrics, Inc., and are registered in the United States and abroad. Copyright © 2025 MetaMetrics, Inc. All rights reserved.
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