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Karger AG","issue":"2","license":[{"start":{"date-parts":[[2013,9,27]],"date-time":"2013-09-27T00:00:00Z","timestamp":1380240000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"},{"start":{"date-parts":[[2013,9,27]],"date-time":"2013-09-27T00:00:00Z","timestamp":1380240000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Eur Addict Res"],"published-print":{"date-parts":[[2014]]},"abstract":"<jats:p>This study aims to analyze psychometric properties and validity of the Compulsive Internet Use Scale (CIUS) and the Internet Addiction Test (IAT) and, second, to determine a threshold for the CIUS which matches the IAT cut-off for detecting problematic Internet use. A total of 292 subjects with problematic or pathological gambling (237 men, 55 women) aged 14-63 years and with private Internet use for at least 1 h per working or weekend day were recruited via different recruitment channels. Results include that both scales were internally consistent (Cronbach's \u03b1 = 0.9) and had satisfactory convergent validity (r = 0.75; 95% CI 0.70-0.80). The correlation with duration of private Internet use per week was significantly higher for the CIUS (r = 0.54) compared to the IAT (r = 0.40). Among all participants, 25.3% were classified as problematic Internet users based on the IAT with a cut-off \u226540. The highest proportion of congruent classified cases results from a CIUS cut-off \u226518 (sensitivity 79.7%, specificity 79.4%). However, a higher cut-off (\u226521) seems to be more appropriate for prevalence estimation of problematic Internet use.<\/jats:p>","DOI":"10.1159\/000355076","type":"journal-article","created":{"date-parts":[[2013,9,27]],"date-time":"2013-09-27T08:52:19Z","timestamp":1380271939000},"page":"75-81","source":"Crossref","is-referenced-by-count":79,"title":["Assessment of Problematic Internet Use by the Compulsive Internet Use Scale and the Internet Addiction Test: A Sample of Problematic and Pathological 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