Development of a Psychometrically Sound Internet Addiction Scale: A Preliminary Step.
Nichols, Laura A.; Nicki, Richard
Psychology of Addictive Behaviors. Vol 18(4), Dec 2004, 381-384.
The Internet Addiction Scale (IAS) is a self-report instrument based on the 7 Diagnostic and Statistical Manual of Mental Disorders (4th ed.; American Psychiatric Association, 1994) criteria and 2 additional criteria recommended by Griffiths (1998). The IAS was administered to 233 undergraduates along with 4 measures pertaining to loneliness and boredom proneness. An item reliability analysis reduced the initial scale from 36 to 31 items (with a Cronbach’s alpha of .95). A principal-components analysis indicated that the IAS consisted mainly of one factor. Multiple regression analyses revealed that Family and Social Loneliness and Boredom Proneness were significantly correlated with the IAS; Family and Social Loneliness uniquely predicted IAS scores. No evidence for widespread Internet addiction was found.
Nichols, L. A., & Nicki, R. (2004). Development of a psychometrically sound Internet addiction scale: a preliminary step. Psychology of Addictive Behaviors, 18(4), 381–384.
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