Researchers have found that teacher turnover costs U.S. schools billions of dollars each year. Significantly less is known, however, about its impacts on teaching quality and staff composition.

A new study of those “hidden costs,” coauthored by the University at Albany’s Lucy Sorensen and Duke University’s Helen Ladd, finds that turnover can have significant and lasting negative impacts on instructional staff quality and student achievement.

Sorensen joins CPRE Knowledge Hub managing editor Keith Heumiller to discuss the study and some important takeaways for education policy and future research.

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Featured Research: Sorensen, Lucy C., and Helen F. Ladd. “The Hidden Costs of Teacher Turnover.” AERA Open, (January 2020).