Spring 2023
By Adrienne Hu and Glenn Milewski For the Spring 2023 reporting cycle, the rolling norm continues to use four consecutive years of data. CTP norms are typically updated annually for each reporting cycle (fall and spring). These “rolling norms” as they are often called, are obtained after gathering three years of data, and in the fourth year, deleting the earliest year and adding data from the most recent administration. During the pandemic, however, when many member schools suspended in-person testing, ERB “froze” the CTP norms. Instead of updating them with limited data from that unusual moment in history, ERB provided […] read more
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Introducing Wild Zebra: AI-Powered Learning Built for Independent Schools
Thursday, July 14, 2026
11:00 a.m. PT / 2:00 p.m. ET […] read more
New National Norms are coming to 360 Access: What does that mean?
The CTP is an assessment widely used by independent schools to measure student achievement and reasoning abilities. By rigorously analyzing the CTP scores of over 1,300 students, we uncovered a remarkably strong, data-backed link between a student’s CTP performance in middle school and their future performance on college entrance exams. […] read more
How Practice Can Help Mitigate Test Anxiety
As for any assessment, best demonstrating your knowledge on the ISEE also requires a strong set of test-taking skills, such as time management and answer choice elimination. Test-taking, like any skill, can be learned and improved through practice. […] read more
E3n Is Officially Here
The legal merger of EMA and ERB is now complete, officially creating E3n—an organization dedicated to strengthening independent school communities and supporting the students and families you serve. […] read more