Purpose: The purpose of this article is to estimate the relationship between principal quality and turnover. Principals can have potentially large effects on student outcomes. When school leaders leave their roles, they cause disruptive effects to the school’s climate. If effective principals are more likely to leave, the negative effects of principal turnover are likely exacerbated. Relatively little, however, is known about the quality of principals who leave the principalship. Research design: We use teachers’ perceptions of their principals as a measure of principal quality to understand the quality of principals who leave schools. We address this research question in New York City public schools from 2013 to 2016, and then replicate it at the national level using the Schools and Staffing Survey data from 2008 to 2012. To understand how principal quality relates to principal turnover, we run linear probability regressions of principal exits on (teacher-assessed) principal quality, controlling for a set of teacher, principal, school, district/state, and time characteristics. Findings: We find that higher quality principals are less likely to leave their schools. This finding persists across school contexts and time, lending robustness to our results. Conclusions: Findings suggest that inasmuch as principal turnover is a concern, it is not driven by higher quality principals. Districts should therefore focus on recruiting more higher quality principals as opposed to focusing on reducing overall principal turnover. Moving forward, research should focus on differential attrition patterns so that efforts to retain principals can be better targeted.

目的：本文的目的是估计主要质量和营业额之间的关系。校长可能会对学生的成绩产生巨大影响。当学校领导离职时，他们会对学校的气候造成破坏性影响。如果有效的委托人更有可能离职，委托人更替的负面影响可能会加剧。但是，对于离开校长的校长的素质知之甚少。研究设计：我们使用教师对校长的看法作为衡量校长素质的标准，以了解离校校长的素质。我们在2013年至2016年间解决了纽约市公立学校的这一研究问题，然后使用2008年至2012年的学校和人员配备调查数据在国家一级复制了该问题。为了了解本金质量与本金周转率之间的关系，我们采用线性概率校长退出对（教师评估的）校长质量的回归，控制一组教师，校长，学校，地区/州和时间特征。调查结果：我们发现，高质量的校长离开学校的可能性较小。这一发现在整个学校环境和时间中都持续存在，为我们的结果提供了强大的支持。结论：研究结果表明，由于本金周转是一个令人担忧的问题，它不是由更高质量的本金驱动的。因此，学区应该着重于招募更多高质量的校长，而不是集中于减少校长的整体流失。展望未来，研究应着重于差异流失模式，以便更好地针对保留本金的努力。