Percentage of teachers at a given level of education leaving the profession in a given school year. The number of leavers is estimated by subtracting the number of teachers in year t from those in year t-1 and adding the number of new entrants to the teaching workforce in year t. The attrition rate is the number of leavers expressed as a percentage of the total number of teachers in year t-1. A high value indicates high levels of teacher turnover which can be disruptive for the learning of students. Assessing and monitoring teacher attrition is essential to ensuring a sufficient supply of qualified and well-trained teachers as well as to their effective deployment, support and management. Where teachers teach for 30-40 years, the attrition rate will be well below 5%. Attrition rates above 10% indicate that the average teaching career lasts only 10 years. For more information, consult the Every country, region and year the World Bank publishes for indicator UIS.TATTRR.2T3.V (Education Statistics), delivered as a tidy table — country, ISO code, year and value — ready for analysis in Excel, R, Python or the Intigal AI workspace. Original compiler: UNESCO Institute for Statistics.
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