TY - RPRT AU - Bertoni, Marco AU - Brunello, Giorgio AU - Rocco, Lorenzo TI - When the Cat Is Near, the Mice Won't Play: The Effect of External Examiners in Italian Schools PY - 2012/Jun/ PB - Institute of Labor Economics (IZA) CY - Bonn T2 - IZA Discussion Paper IS - 6629 UR - https://www.iza.org/index.php/publications/dp6629 AB - 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. KW - education KW - external monitoring KW - testing ER -