%0 Report %A Bertoni, Marco %A Brunello, Giorgio %A Rocco, Lorenzo %T When the Cat Is Near, the Mice Won't Play: The Effect of External Examiners in Italian Schools %D 2012 %8 2012 Jun %I Institute of Labor Economics (IZA) %C Bonn %7 IZA Discussion Paper %N 6629 %U https://www.iza.org/publications/dp6629 %X We use a natural experiment to show that the presence of an external examiner in standardized school tests reduces the proportion of correct answers in monitored classes by 5.5 to 8.5% – depending on the grade and the test – with respect to classes in schools with no external monitor. We find that the effect of external monitoring in a class spills over to other classes in the same school. We argue that the negative effect of external supervision is due to reduced cheating (by students and/or teachers) rather than to distraction from having a stranger in the class. %K education %K external monitoring %K testing