인터넷 게임장애 구조적 면담검사(Structured Clinical Interview for Internet Gaming Disorder, SCI-IGD) 타당화 및 DSM-5 진단준거의 진단적 유용성 검증

The inclusion of Internet Gaming Disorder (IGD) in the DSM-5 appendix has facilitated research on the development and validation of assessment tools of IGD. The purpose of this study was twofold. First, the validity of the Structured Clinical Interview for IGD (SCI-IGD) was examined using a community sample of adults. Second, the diagnostic accuracy of the nine IGD criteria proposed in the DSM-5 was evaluated. A total of 99 adults participated in this study, and the administration of SCI-IGD was individually conducted, and self-report measures such as the Perceived Daily Stress Scale (on daily life and self), Brief Symptoms Inventory, and Difficulties in Emotion Regulation Scale were also carried out. The results were as follows: 1) Confirmatory factor analysis demonstrated that the SCI-IGD has good construct validity; and 2) 2PL-IRT showed that the “deception” and “escape” criteria have relatively low discrimination accuracy, and the probability of fulfilling “tolerance” criteria was lowest among the nine diagnostic criteria. Implications and suggestions for the future research were discussed.