Active methods in electricity and magnetism courses: Influence of degree, academic level and gender on student performance oleh María-Antonia Serrano, Ana Vidaurre, José M. Meseguer-Dueñas, Isabel Tort-Ausina, Susana Quiles, Roser Sabater i Serra, Tania García-Sanchez, Soledad Bernal-Pérez, M. Amparo Gámiz-González, José Molina-Mateo, José Antonio Gómez-Tejedor, Jaime Riera