iReady Inform and iReady Diagnostic refer to the same assessment program during an important transition for the 2026–2027 school year. Curriculum Associates is changing the name of iReady Diagnostic to iReady Inform for Reading and Mathematics. For parents, the change may appear on school reports, assessment information, and other communications.
The new name is designed to better communicate the purpose of the assessment: providing useful information that helps teachers, students, and families make informed learning decisions. The results continue to help schools understand student performance, identify learning needs, and monitor academic progress.
iReady Diagnostic vs iReady Inform at a Glance
The easiest way to understand the change is to look at what is staying familiar and what is changing.
Previous name: iReady Diagnostic
New name: iReady Inform
Subjects: Reading and Mathematics
School year: 2026–2027
Main purpose: Inform instruction and support student learning
Parents may see both names during the transition. A school may use wording such as "iReady Inform, formerly iReady Diagnostic" to make the change easier to understand.
Why Is iReady Diagnostic Becoming iReady Inform?
Curriculum Associates is changing the name because the assessment's primary purpose is to provide information that can guide instruction and learning.
The word "Inform" emphasizes that assessment results are intended to help educators understand what students know, identify areas for additional support, and make instructional decisions.
For families, this means the new name is meant to make the role of the assessment clearer rather than create confusion about what the assessment measures.
Is iReady Inform a Completely New Test?
No. The transition is primarily a rebrand rather than the introduction of an unrelated assessment.
Curriculum Associates says the assessment will continue to provide valid and reliable data, familiar reporting, and instructional support.
A shorter assessment option will also be available during the 2026–2027 school year in response to educator requests to reduce testing time while preserving useful assessment information.
Therefore, parents should not assume that the appearance of "iReady Inform" on a school report means their child has taken a completely different type of assessment.
What Has Stayed the Same?
Many familiar elements remain important when interpreting results.
Parents can continue to look at information such as:
Scale score
National percentile
Placement information
Growth
Grade
Subject
Testing season
These measurements provide different pieces of information about student performance.
The scale score gives a numerical result, while the percentile provides a comparison with an appropriate national group. Placement can help describe instructional performance, and growth provides information about changes over time.
What Is Different in 2026–2027?
The most obvious difference is the name.
Schools transitioning to the new terminology may replace "iReady Diagnostic" with "iReady Inform" in communications and reports.
There is also a shorter assessment option planned for the 2026–2027 school year. The purpose is to reduce testing time while continuing to provide useful information for educators.
Because schools may transition at different times, families could encounter both names during the school year.
iReady Inform for Mathematics
iReady Inform continues to provide mathematics assessment information.
Math results can help teachers understand a student's current skills and identify areas that may benefit from additional instruction or practice.
Parents should consider the student's grade and testing season when reviewing a mathematics result. The scale score, percentile, placement, and growth information can provide additional context
click here for the updated I-Ready Diagnostic scores charts for 2026 and 2027 in Math and Reading according to Readyscores.com.
iReady Inform for Reading
Reading results provide information about a student's literacy performance and developing reading skills.
A child's reading performance may differ from mathematics performance, so families should review each subject independently.
When looking at a reading result, parents should consider:
Grade
Testing season
Scale score
National percentile
Placement
Growth
This provides a more complete picture than looking only at the numerical score.
Understanding iReady Inform Percentiles
A national percentile shows how a student's performance compares with students in the relevant national comparison group.
A percentile is not the percentage of questions answered correctly. Instead, it represents the student's relative position compared with other students.
For example, a higher percentile generally means that the student performed better than a greater proportion of students in the comparison group.
Parents should interpret percentile information using the appropriate grade, subject, and testing season.
Understanding Placement Levels
Placement information can help educators identify a student's instructional needs.
It can provide context about how a student's performance relates to grade-level expectations and help teachers determine which skills may require additional attention.
Placement is not a permanent label. Students can develop skills and change their academic performance through instruction, practice, and appropriate support.
Understanding Growth
Growth information helps parents see how performance changes over time.
Looking at multiple results from Fall, Winter, and Spring can provide a broader view of academic progress than examining a single assessment.
Growth can vary among students. Parents should discuss the results with teachers to understand what the changes mean for their child's specific learning needs.
Why Fall, Winter, and Spring Matter
The testing season is an important part of interpreting iReady results.
Common assessment periods include:
Fall
Winter
Spring
A student's performance can change during the school year as classroom instruction continues. National comparisons can also depend on the time of year.
For this reason, parents should always compare results using the correct grade, subject, and testing season.
Find Updated iReady Score Charts
Parents can find updated iReady score charts for the 2026–2027 school year at ReadyScores.com. The website provides reading and mathematics information organized by grade, testing season, scale score, and national percentile.
The charts can help families understand whether a result is below average, near the national average, or above average for the appropriate comparison group.
When using a score chart, make sure the student's grade, subject, and testing season match the chart being reviewed.
Use the Free iReady Score Calculator
Parents looking for a quick way to understand a result can use the free iReady Score Calculator on ReadyScores.com.
Enter the student's grade, subject, testing season, and scale score. The calculator can provide an estimated national percentile and additional context about the result.
It can help answer questions such as:
Is this a good iReady score?
Is my child near the national average?
What does the percentile mean?
Is the score below or above grade level?
What should we work on next?
Has my child made enough progress?
The calculator can be used for both reading and mathematics.
How Parents Should Interpret the Change
For most families, there is no need to treat iReady Inform as an entirely new concept. The key is to understand that Curriculum Associates is using a new name for the assessment during the 2026–2027 school year.
Parents should continue to focus on the information behind the result:
What does the scale score show?
What is the national percentile?
What placement information is provided?
How has performance changed?
Which skills need additional practice?
What are the next learning goals?
These questions can help families make better use of assessment information.
About ReadyScores.com
ReadyScores.com is a resource for iReady scores, iReady Inform scores, NWEA MAP scores, STAR scores, national percentile charts, and school assessment interpretation.
The site also offers free English and German calculators. Popular tools include the iReady Score Calculator, NWEA MAP Score Calculator, APUSH Score Calculator, Time Duration Calculator, Work Hours Calculator, free Timecard Calculator, Arbeitszeitrechner, Stundenrechner, and other practical education, salary, and time tools.
Final Thoughts
The transition from iReady Diagnostic to iReady Inform is primarily a name change for the 2026–2027 school year. The assessment continues to provide information that can help teachers and families understand student performance in Reading and Mathematics.
Parents should not judge a child's performance from one number alone. Scale scores, percentiles, placement, growth, grade, subject, and testing season all provide useful context.
Understanding these details can make iReady Inform results easier to read and more useful when discussing a child's academic progress with teachers.
iReady Inform vs iReady Diagnostic: Key Changes Explained
