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Addict Behav. 2014 Sep;39(9):1361-6. doi: 10.1016/j.addbeh.2014.01.020. Epub 2014 Feb 11.

Development of the Internet addiction scale based on the Internet Gaming Disorder criteria suggested in DSM-5.

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Addiction Research Institute, Department of Psychiatry, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea.
Department of Psychiatry, Hallym University Chuncheon Sacred Heart Hospital, Republic of Korea.
Department of Psychiatry, Seoul National University College of Medicine, Seoul, Republic of Korea; Department of Psychiatry, SMG-SNU Boramae Medical Center, Seoul, Republic of Korea.
Department of Psychiatry, Gangnam Eulji Hospital, Eulji University, Seoul, Republic of Korea; Eulji Addiction Institute, Eulji University, Republic of Korea.
Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea. Electronic address:


This study was conducted to develop and validate a standardized self-diagnostic Internet addiction (IA) scale based on the diagnosis criteria for Internet Gaming Disorder (IGD) in the Diagnostic and Statistical Manual of Mental Disorder, 5th edition (DSM-5). Items based on the IGD diagnosis criteria were developed using items of the previous Internet addiction scales. Data were collected from a community sample. The data were divided into two sets, and confirmatory factor analysis (CFA) was performed repeatedly. The model was modified after discussion with professionals based on the first CFA results, after which the second CFA was performed. The internal consistency reliability was generally good. The items that showed significantly low correlation values based on the item-total correlation of each factor were excluded. After the first CFA was performed, some factors and items were excluded. Seven factors and 26 items were prepared for the final model. The second CFA results showed good general factor loading, Squared Multiple Correlation (SMC) and model fit. The model fit of the final model was good, but some factors were very highly correlated. It is recommended that some of the factors be refined through further studies.


DSM-5 criteria; Internet addiction; Reliability; Validity

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