Validation of the Consumption Screen for Problem Gambling (CSPG)

Abstract

A 3 item screen for problem gambling was developed based on a conceptual analogue of the Alcohol Use Disorders Identification Test--Consumption (Bush et al. in Arch Intern Med 158:1789-1795, 1998); a brief screen that measures consumption rather than harm. Data were collected from an email panel survey of 588 men and 810 women (n = 1,398) across all states in Australia. Respondents indicated their consumption of gambling products using the 3 items of the new Consumption Screen for Problem Gambling (CSPG). Receiver Operating Characteristics curve analysis was used to analyze the performance of the new items relative to the Problem Gambling Severity Index (Ferris and Wynne in The Canadian problem gambling index: Final report, 2001). Results show a 98% probability that the CSPG score for a randomly chosen positive case of problem gambling will exceed the score for a randomly chosen negative case. In addition, a score of 4+ on the CSPG identified all 14 cases of Problem Gambling correctly, while only 7.3% of non-problem gamblers had scores of 4+ (sensitivity = 100%; specificity = 92.7%). Lastly, only 3.0% of respondents without any gambling problems had CSPG scores of 4+. The current study suggests that the CSPG, a brief consumption-based measure for gambling products, can quickly and accurately identify people who are likely to be experiencing gambling problems.

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