Psychometric Properties of the Problematic Online Gaming Questionnaire Short-Form and Prevalence of Problematic Online Gaming in a National Sample of Adolescents. - Orsolya Pápay; Róbert Urbán; Mark D. Griffiths 001; Katalin Nagygyörgy; Judit Farkas; Gyöngyi Kökönyei; Katalin Felvinczi; Attila Oláh; Zsuzsanna Elekes; Zsolt Demetrovics (Cyberpsychology Behav. Soc. Netw., 2013)