{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T09:48:51Z","timestamp":1777888131291,"version":"3.51.4"},"reference-count":13,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2004,10,1]],"date-time":"2004-10-01T00:00:00Z","timestamp":1096588800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Psychol Rep"],"published-print":{"date-parts":[[2004,10]]},"abstract":"<jats:p>An epidemiological study was performed on a representative sample of the Norwegian youth population (12 to 18 years old, N = 3,237; response rate 45.2%). The percentage who were frequent players (weekly) of different computer games was 63.3%, and the percentage of infrequent users was 36.7%. A mean of 2.7% (4.2% of the boys, 1.1% of the girls) could be described as exhibiting \u201cpathological playing\u201d according to the criteria in the 1998 Diagnostic Questionnaire for Internet Addiction of Young, and an additional 9.82% (14.5% of the boys, 5.0% of the girls) were considered to be engaging in \u201cat-risk playing.\u201d Of the weekly gamblers, 4.2% fulfilled 5 criteria for pathological playing, and an additional 15.5% 3 to 4 criteria, i.e., at-risk playing. This indicated that frequent gaming on computer games without money rewards may be related to problematic playing even though no monetary reward is involved.<\/jats:p>","DOI":"10.2466\/pr0.95.2.641-650","type":"journal-article","created":{"date-parts":[[2010,9,20]],"date-time":"2010-09-20T06:44:09Z","timestamp":1284965049000},"page":"641-650","source":"Crossref","is-referenced-by-count":73,"title":["Problems with Computer Games without Monetary Reward: Similarity to Pathological Gambling"],"prefix":"10.1177","volume":"95","author":[{"given":"Agneta","family":"Johansson","sequence":"first","affiliation":[{"name":"Norwegian University of Science and Technology"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"K. 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