Research consistently shows that teacher turnover has a negative effect on student outcomes, school climate, and teacher quality. Teacher attrition often results in inexperienced or under-qualified teachers being hired. The churn also disrupts the relationships among adults at the school and between teachers and students. Such relationships are necessary for a well-functioning school. Further, teacher attrition is financially costly to districts because of the direct costs associated with finding replacement teachers and the indirect costs of lower student outcomes.
This study examines teacher retention, teacher mobility, and teacher attrition in Philadelphia County. The study includes all charter schools in Philadelphia County as well as the Philadelphia School District.
The data analysis underlying this study was supported financially by Elevate 215 located in Philadelphia, Pennsylvania on behalf of the Philadelphia Citywide Talent Coalition.
Read the study below:
Center for Education Evaluation and Policy Analysis 
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