Evren, CuneytDalbudak, ErcanTopcu, MerveKutlu, NilayEvren, BilgePontes, Halley M.02.04. Psikoloji02. Fen-Edebiyat Fakültesi01. Çankaya Üniversitesi2019-12-202025-09-182019-12-202025-09-182018Evren, Cuneyt; Dalbudak, Ercan; Topcu, Merve; et al. (2018). Psychometric validation of the Turkish nine-item Internet Gaming Disorder Scale-Short Form (IGDS9-SF), Psychiatry Research, 265.0165-17811872-7123https://doi.org/10.1016/j.psychres.2018.05.002https://hdl.handle.net/20.500.12416/13909Evren, Cuneyt/0000-0002-4431-3514; Pontes, Halley M./0000-0001-8020-7623; Topcu-Bulut, Merve/0000-0003-3181-2864; Dalbudak, Ercan/0000-0001-8563-5440; Kutlu, Nilay/0000-0003-3506-7275The main aims of the current study were to test the factor structure, reliability and validity of the nine-item Internet Gaming Disorder Scale-Short Form (IGDS9-SF), a standardized measure to assess symptoms and prevalence of Internet Gaming Disorder (IGD). In the present study participants were assessed with the IGDS9-SF, nine-item Internet Gaming Disorder Scale (IGDS) and the Young's Internet Addiction Test-Short Form (YIAT-SF). Confirmatory factor analyzes demonstrated that the factor structure (i.e., the dimensional structure) of the IGDS9-SF was satisfactory. The scale was also reliable (i.e., internally consistent with a Cronbach's alpha of 0.89) and showed adequate convergent and criterion-related validity, as indicated by statistically significant positive correlations between average time daily spent playing games during last year, IGDS and YIAT-SF scores. By applying the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) threshold for diagnosing IGD (e.g., endorsing at least five criteria), it was found that the prevalence of disordered gamers ranged from 0.96% (whole sample) to 2.57% (e-sports players). These findings support the Turkish version of the IGDS9-SF as a valid and reliable tool for determining the extent of IGD-related problems among young adults and for the purposes of early IGD diagnosis in clinical settings and similar research.eninfo:eu-repo/semantics/openAccessE-SportsInternet Gaming DisorderIgds9-SfScaleUniversity StudentsYoung AdultsArticle10.1016/j.psychres.2018.05.0022-s2.0-85048706483