Aaron Ainsworth
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ajainsworth.bsky.social
Aaron Ainsworth
@ajainsworth.bsky.social
Ed Policy PhD student at UCI studying K-12 educator labor markets and policy • Vanderbilt & UNLV alum • former Las Vegas teacher • 🏳️‍🌈
www.aaronjainsworth.com
Difference-in-difference estimates show no gains in student learning. If anything, the opposite. In the year teachers were told they would be re-evaluated, their students scored 0.055 standard deviations lower on national exams. There also were no changes to student and parent ratings of teachers.
September 15, 2026 at 9:53 PM
Teachers who were re-evaluated raised their evaluation scores massively: by a full standard deviation. That's well beyond what regression to the mean predicts.
September 15, 2026 at 9:53 PM
1. Teachers are the most stable group.

When we look at turnover rates across many different types of employees, teachers, especially GenEd teachers, consistently have the lowest rates of turnover. This is true both in the short- and long-term and when looking at just district moving and exiting.
February 11, 2026 at 4:39 PM