Carlo Bellettini, Violetta Lonati, Dario Malchiodi, Mattia Monga, Anna Morpurgo, Mauro Torelli. How Challenging are Bebras Tasks?: An IRT Analysis Based on the Performance of Italian Students. In Valentina Dagiene, Carsten Schulte, Tatjana Jevsikova, editors, Proceedings of the 2015 ACM Conference on Innovation and Technology in Computer Science Education, ITiCS 2015, Vilnius, Lithuania, July 4-8, 2015. pages 27-32, ACM, 2015. [doi]
Abstract is missing.