Grades 3-8


Update: Milestone Assessments are now available in the ERB Shopping Cart!
Your school is evolving. Shouldn’t the way you measure progress?


Many educators today want more assessment touchpoints across a school year to help guide instruction and design classroom interventions that help students reach their learning and achievement goals. But it can be difficult and expensive to integrate new assessments, as teachers are already under great pressure to maximize classroom time with their students. We have a solution for that.


2020-2021 Testing Dates


Fall:  8/3/2020 – 11/27/2020
Winter: 12/7/2020 – 3/26/2021
Spring:  4/5/2021 – 7/23/2021




Meet Milestone Assessments from ERB.


ERB’s Milestone Assessment Solution for students in Grades 3-8 is an extension of our time-tested Comprehensive Testing Program, offering educators:


  • Consistency: Leveraging the CTP independent school norms and standards many schools already use for enhanced validity and easy, familiar score interpretation
  • Flexibility: Reading and math tests administered in 40-minute modules per subject can be administered at various points during the school year—whenever works best for each teacher and classroom
  • Timeliness: A new intuitive online portal provides educators access to student data and test results in real-time, making it easier than ever to track student progress


Available for the Fall 2020 school year, the Milestone Assessments were developed in consultation with leading independent schools. ERB Milestone Assessments will initially be available online and can be administered either as a complement to the annual, summative CTP already administered at many schools, or independently up to three times per school year. 

Be the first to know more. Complete our interest form and one of our representatives will contact you with more details.


Testing Options

Designed for every classroom.


ERB’s Milestone Assessments were designed to work in conjunction with—or independent of—our summative CTP program. 









Fall CTP + Two Milestones

CTP Milestone Milestone

Spring CTP + Two Milestones

Milestone Milestone CTP

Coming 2021 Three Milestones  

Milestone Milestone Milestone


Members who desire to utilize the CTP exam alone (without Milestone Assessments) may do so. 

"The current state of educational technology allows for more frequent assessment touchpoints, which creates a better system for understanding student achievement and taking timely action to address their academic needs.”


— ERB President, Tom Rochon 




ERB 360 Access: A new reporting platform delivers real-time insights and interactivity.


A newly designed reporting platform will provide dynamic, interactive and shareable reports allowing users to maximize the insights to student outcomes. An easy to use and understand range of reports will support schools in making more informed, data-driven decisions. Major features include:


  • Annual, multi-year, and multi-test-window reports on student growth, with the ability to visualize norms and project achievement path comparisons
  • Itemized and summarized student cohort analyses based on performance levels and achievement
  • Standards mastery analyses, revealing students' skills and knowledge attainment
  • Individual student profile comprising all current and historical outcomes
  • School-level snapshots, allowing administrative users to quickly gain awareness of overall performance
  • Calendarized notifications and reminders of upcoming important dates and events

Still Have Questions?

Review our FAQs below or complete our interest form to find out more.




What is the purpose of the Milestones Program? 

Milestones give more frequent looks at a student’s learning progress in the key areas of Math and Reading Comprehension, enabling teachers to identify in real time areas where students need more work. For schools that do CTP testing in the spring, the fall Milestone Benchmark is especially useful to assess where students are at the beginning of the year, while the winter Milestone shows the degree of progress made. For schools that do CTP testing in the fall, a winter and spring Milestone yield an understanding of student progress across the year, as well as outcomes at the end of the year.


What grades and subjects do the Milestone assessments cover?
Milestones cover the Mathematics and Reading Comprehension subtests of the CTP, and are available online for students in Grades 3-8, based on feedback from ERB member schools. Each subject-area module is delivered in a single 45-minute session.

Will the Milestone assessments link or align with the CTPs?
The Milestone assessments evaluate student skills and knowledge in the same academic domains as the CTP.  Likewise, Milestone assessment scores are reported on the same CTP vertical score scale that is familiar to our members, allowing for easy tracking and comparison. 


Can the subjects be broken up or taken independently, or do they have to be tested together?
The Reading Comprehension and Mathematics subtests can be taken independently. They do not need to be taken on the same day, so long as they are completed within the same testing season.  



When will the ERB Milestone assessments be available?
Fall 2020 



How much will the Milestone assessments cost?
For schools that currently administer, CTP, a package of two Milestone Assessments (including both subject subtests) costs $10 per student. For schools that do not currently administer CTP, the two Milestone package costs $12 per student.

Where can I order interim "Milestone" assessments?
Milestone assessments are available as new offerings in the Achievement program section of ERB’s website.



How many times per academic year are the Milestone assessments administered?
For the 2020-21 school year, schools can administer up to two Milestone Assessments in addition to CTP. Beginning Fall 2021, schools can choose to administer up to three Milestone Assessments without CTP (or up to two Milestones plus CTP).


What reports will be available for Milestone Assessments?

ERB's new 360 Access Portal, available August 2020, will enable educators to set up rosters of students (e.g. a class, a group of advisory peers, or any other group of interest) and examine their CTP and Milestones test results, current and historical, on four different reports. Those report options are: (1) Achievement (examining progress over time); (2) Performance (student scores relative to selected norm groups); (3) Standards Mastery (standards and item-level performance); and (4) Completion (summarizes how many students per group rostered have been tested). Users will also be able to view individual student profiles, with each student's testing records, in addition to group-level analyses.


Our school was not able to administer the CTP this spring as planned. Could a fall Milestone help us bridge the gap in test scores?

Yes! A fall and/or winter Milestone would provide the data to fill that gap leading up to your next spring CTP administration.

Could Milestone Assessments be administered to students at home if there is ever a need for remote education in the future?

Yes. Just like the CTP, Milestone Assessments can be delivered to students remotely at home on Zoom or similar software with a school-supplied proctor. Students can also be tested in class at different times to accommodate the needs and realities of each school and classroom.



Can schools customize their testing configurations with Milestones? For example, CTP in the fall, then a Milestone in the spring?
Yes! Flexible administration options include:









Fall CTP + Two Milestones

CTP Milestone Milestone

Two Milestones + Spring CTP

Milestone Milestone CTP

Coming 2021 Three Milestones  

Milestone Milestone Milestone


Members also have the option of utilizing the CTP exam alone (without Milestone Assessments). When using the CTP assessment alone, test administration takes place in either the Fall or Spring. To confirm the current CTP-only testing dates, please go here.


Could schools use Milestones for admissions purposes with individual candidates to determine whether they are on-level with current students?

You could use Milestones for students once they are enrolled at your school to have data comparable to existing students, including for placing students in the right courses. Assessing incoming students early certainly could certainly help you understand what skills they are bringing. Because Milestones is an achievement test, however, we do not recommend using a single Milestone Assessment to make admissions decisions. 

For admissions purposes, we recommend that schools use our Independent School Entrance Exam (ISEE).


What devices are supported for Milestones?

The list of supported devices for Milestones is the same as for CTP Online. Please visit the Help and Resources section of the CTP Portal for more details. Note that iPads are not supported for remote CTP or Milestones testing (at home), as the iPad testing software is not currently compatible with video conferencing applications.


How are ERB's Milestone assessments different from others on the market?
ERB Milestone assessments are aligned to NCTM/NCTE standards, making them state- and region-agnostic, unlike many “off the shelf” commercial assessment products.  In addition, Milestone assessments offer norm-referenced score comparisons that are valuable to independent and public school markets. ERB Milestone assessments are built to the same standards and scoring procedures as the Mathematics and Reading Comprehension sections of the CTP, thus enabling schools to make additional use of their CTP data.



Do we need to use the CTP if we implement Milestone assessments?
The CTP remains a valuable, comprehensive, reliable option for getting a full picture of students’ academic achievement.  The Milestone assessments were designed as a complement to allow schools and teachers to evaluate student progress throughout the year using brief, convenient testing events rather than waiting for a single testing period.  Models that are recommended are: administering the CTP in the fall to set a benchmark and then monitoring progress throughout the year; or administering the Milestone assessments in the fall and winter with CTP in the spring as a true summative assessment.



How quickly will we receive score reports after administering an Milestone assessment?
Because Milestone assessments are administered online, scores will be available to the schools almost immediately after the tests are complete.  



I have other questions about the Milestone Assessments—who can I talk to?
Please fill out this very brief survey which will help us route your question to the appropriate staff.


What is the Milestones expiration and refund policy?

Our refund policies are detailed here.

Interested in learning more? Complete this short form and an ERB representative will contact you with more details.