Dynamic Effects of Teacher Turnover on the Quality of Instruction
It is widely believed that teacher turnover adversely affects the quality of instruction in urban schools serving predominantly disadvantaged children, and a growing body of research investigates various components of turnover effects. The evidence at first seems contradictory, as the quality of instruction appears to decline following turnover despite the fact that most work shows higher attrition for less effective teachers. This raises concerns that confounding factors bias estimates of transition differences in teacher effectiveness, the adverse effects of turnover or both. After taking more extensive steps to account for nonrandom sorting of students into classrooms and endogenous teacher exits and grade-switching, we replicate existing findings of adverse selection out of schools and negative effects of turnover in lower-achievement schools. But we find that these turnover effects can be fully accounted for by the resulting loss in experience and productivity loss following the reallocation of some incumbent teachers to different grades.
We thank Dan O’Brien for help with the data development and early analytical work and anonymous referees and the editor for thoughtful comments. Greg Branch provided superb research assistance. This research has received support from the Spencer Foundation, the Hewlett Foundation, and the Packard Humanities Institute. The conclusions of this research do not necessarily reflect the opinions or official position of the Texas Education Agency, the Texas Higher Education Coordinating Board, or the State of Texas. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.
Eric A. Hanushek & Steven G. Rivkin & Jeffrey C. Schiman, 2016. "Dynamic Effects of Teacher Turnover on the Quality of Instruction," Economics of Education Review, . citation courtesy of