Rudolf Kammerl

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Excessive Internet use and Internet addiction are currently increasing in many industrial nations. Verified and validated measuring instruments could contribute to a better understanding of this still quite recent development. The aim of this survey was to investigate the psychometric properties of a German version of the Compulsive Internet Use Scale(More)
We propose a methodology for the reuse of contextualized learning content. The current reuse methodology requires context independent learning content and introduces a reuse paradox: "the most reusable objects are context-independent, while the best instruction is highly contextualized". We identify two aspects of contextualization: specialisation on the(More)
Education can profit significantly from hypermedia und e-technologies. However, in our experience the majority of students having the choice of learning on the computer or from a printed script or book prefer the latter when it comes to " challenging " formal domains. For online learning material to be successful its structure and presentation have to(More)
BACKGROUND Pathological internet use is of increasing significance in several industrial nations. SAMPLING AND METHODS We surveyed a representative German quota sample of 1,723 adolescents (aged 14-17 years) and 1 caregiver each. We conducted a latent profile analysis to identify a high-risk group for pathological internet use. RESULTS Overall, 3.2% of(More)
Few studies have been carried out investigating the interdependence of family structures or interactions and excessive adolescent Internet use. In this study, we surveyed a representative German quota sample of 1,744 adolescents aged between 14 and 17 years with standardized questionnaires. Adolescents assessed their perceived own functioning in the family(More)
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