Preferences in the format of questionnaires and use of the Internet by schoolchildren L. Rajmil, N. Robles, M. Murillo, D. Rodríguez-Arjona, M. Azuara, A. Ballester, F. Codina

Representation of the image of the minor in the publicity circulated via the Internet Garrido Felipe, Laura Sonera-Marcos, Pilar M. García-Fernández, Ilaria Montagni, Juan Luis González-Caballero

Impact of screen and social media use on mental health Lefa S. Eddy Ives, Abigail Huertas Patón, María Azul Forti Buratti, Julio Álvarez Pitti, María Angustias Salmerón-Ruiz, Pedro Javier Rodríguez Hernández, Matias Real-López