Ko, C.-H.C.-H.KoYen, J.-Y.J.-Y.YenChen, S.-H.S.-H.ChenYang, M.-J.M.-J.YangLin, H.-C.H.-C.LinYen, Cheng-FangCheng-FangYen2020-07-102020-07-102009https://scholars.lib.ntu.edu.tw/handle/123456789/509723The aims of this study were to develop diagnostic criteria of Internet addiction for college students (DC-IA-C) with diagnostic interviews and to establish the optimal cutoff points of the Chen Internet Addiction Scale (CIAS) for the purposes of screening for and making the diagnosis of Internet addiction. A total of 216 college students (132 male and 84 female) were recruited in the study. The results demonstrated that 5/6 cutoff points of criteria A in DC-IA-C had the best diagnostic accuracy (95.9%). Besides, 63/64 and 67/68 cutoff points of the CIAS were evaluated to be the best screening and diagnostic cutoff points, respectively. The DC-IA-C can provide health care professionals with a means to diagnose and communicate about Internet addiction among college students, and the screening and diagnostic cutoff points of CIAS could provide a screening instrument or a discriminative instrument in surveys for Internet addiction among college students. ? 2009 Elsevier Inc. All rights reserved.[SDGs]SDG3adolescent; adult; article; chen internet addiction scale; clinical assessment tool; college student; diagnostic accuracy; diagnostic value; discriminant analysis; female; health survey; human; internet addiction; interview; major clinical study; male; practice guideline; psychological rating scale; reference value; Adolescent; Adolescent Behavior; Adult; Behavior, Addictive; Factor Analysis, Statistical; Female; Humans; Internet; Male; Mass Screening; Psychiatric Status Rating Scales; Psychometrics; Reproducibility of Results; ROC Curve; Sensitivity and Specificity; Students; Universities; User-Computer Interfacejournal article10.1016/j.comppsych.2007.05.0192-s2.0-67349283499https://www.scopus.com/inward/record.uri?eid=2-s2.0-67349283499&doi=10.1016%2fj.comppsych.2007.05.019&partnerID=40&md5=a46980dc28f406aac2ebaedb0b400d14