Background: Early childhood teachers represent important socializers of children's emotions providing professional practices, such as communication about children's emotions, influencing children's development. According to an ecological framework, early childhood teachers' emotional practices are guided by both their personal and professional…

We use a natural experiment to show that the presence of an external examiner has both a direct and an indirect negative effect on the performance of monitored classes in standardized educational tests. The direct effect is the difference in the test performance between classes of the same school with and without external examiners. The indirect…