https://www.crpe.org/sites/default/files/wp_crpe2_ttlosingbest_sept07_0.pdf

Are Public Schools Losing Their 'Best'? Assessing the Career Transitions of Teachers and Their Implications for the Quality of the Teacher Workforce

September 2007

This paper examines attrition and mobility of early-career teachers in North Carolina public schools using teacher value-added measures.

Most studies that have fueled alarm over the attrition and mobility rates of high-quality teachers have relied on proxy indicators of teacher quality, which recent research finds to be only weakly correlated with value-added measures of teachers' performance. We examine attrition and mobility of teachers using teacher value-added measures for early-career teachers in North Carolina public schools from 1996 to 2002. Our findings suggest that the most-effective teachers tend to stay in teaching and in specific schools. Contrary to common expectations, we do not find that more-effective teachers are more likely to leave more-challenging schools.

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