@article{GuertlerRumpfBischofetal.2013,
  author    = {Diana Guertler and Hans-Juergen Rumpf and Anja Bischof and Nadin Kastirke and Kay Uwe Petersen and Ulrich John and Christian Meyer},
  title     = {Assessment of Problematic Internet Use by the Compulsive Internet Use Scale and the Internet Addiction Test: A Sample of Problematic and Pathological Gamblers},
  series   = {European Addiction Research},
  volume    = {20},
  number    = {2},
  publisher = {S. Karger AG},
  address   = {Basel, Switzerland},
  issn      = {1022-6877},
  doi       = {10.1159/000355076},
  url       = {https://nbn-resolving.org/urn:nbn:de:gbv:9-opus-32716},
  pages     = {75 -- 81},
  year      = {2013},
  abstract  = {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 α = 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 ≥40. The highest proportion of congruent classified cases results from a CIUS cut-off ≥18 (sensitivity 79.7\%, specificity 79.4\%). However, a higher cut-off (≥21) seems to be more appropriate for prevalence estimation of problematic Internet use.},
  language  = {en}
}