The aims of the present study were to develop diagnostic criteria of Internet addiction for
adolescents and to examine the discriminating potential and validity of diagnostic criteria by
an empirical community study among adolescent populations. We developed 13 candidate
diagnostic criteria for characteristic symptoms of Internet addiction in adolescents. A total of
468 adolescents completed the Chen Internet Addiction Scale (CIAS) and were
systematically assessed for Internet-using behaviors by seven psychiatrists using the …