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Ismael Sanz Labrador holds a PhD in Applied Economics from the Complutense University of Madrid. He is a professor in the Department of Applied Economics at Rey Juan Carlos University and director of innovation, scholarships and educational support for the Community of Madrid. Ismael Sanz was also the director of the National Institute for Educational Evaluation at the Ministry of Education, Culture and Sports between 2012 and 2015, and chairman of the strategic development group for the PISA test, developed by the OECD.
Do two weeks of instruction time matter?
In Madrid, public schools cut two weeks from their school year without altering the syllabus. We examined student test scores before and after this change and compared them with private schools, which didn't experience this shift.
Juan de Dios Tena Horrillo