School districts seek to increase teacher retention in response to nationwide teacher shortages. The problem is that teachers who have taught for 5 years or less have the highest attrition rates compared to other teachers, with more than 44% of new teachers leaving the profession within the first 5 years. The purpose of this qualitative case study…

We use value-added models to calculate measures of effectiveness for new elementary school teachers in Florida between 2001-02 and 2005-06, then compare the attrition and mobility patterns of more and less effective teachers overall and across various types of schools. While we do not find evidence that schools are disproportionately losing their…