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PGSI and DSM-IV in the 2007 British Gambling Prevalence Survey: reliability, item response, factor structure and inter-scale agreement

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  • Jim Orford
  • Heather Wardle
  • Mark Griffiths
  • Kerry Sproston
  • Bob Erens

Abstract

Data from the 2007 British Gambling Prevalence Survey were used to examine the psychometric properties of the two problem gambling scales used in the survey: the Canadian Problem Gambling Severity Index (PGSI) and a DSM-IV-based scale. Analysis was based on those who reported any gambling in the past 12 months (between 5483 and 5528 participants for most analyses). The PGSI gave evidence of high internal reliability, uni-dimensionality, and good item-response characteristics. Several PGSI items showed extreme male to female endorsement ratios and a possible conclusion is that the PGSI is under-estimating the prevalence of problem gambling among women. The DSM-IV-based scale showed only satisfactory internal reliability, evidence suggesting bi-dimensionality, and poor performance of at least two items: those relating to gambling-related crime and 'chasing losses'. The results also suggest that, for population survey purposes, problem gambling/non-problem gambling might best be viewed as lying on a continuum.

Suggested Citation

  • Jim Orford & Heather Wardle & Mark Griffiths & Kerry Sproston & Bob Erens, 2010. "PGSI and DSM-IV in the 2007 British Gambling Prevalence Survey: reliability, item response, factor structure and inter-scale agreement," International Gambling Studies, Taylor & Francis Journals, vol. 10(1), pages 31-44, April.
    • Handle: RePEc:taf:intgms:v:10:y:2010:i:1:p:31-44
    DOI: 10.1080/14459790903567132
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    Cited by:

    1. Neda Faregh & Craig Leth-Steensen, 2011. "The gambling profiles of Canadians young and old: game preferences and play frequencies," International Gambling Studies, Taylor & Francis Journals, vol. 11(1), pages 23-41, April.
    2. Farrell, Lisa & Fry, Jane M., 2021. "Australia's gambling epidemic and energy poverty," Energy Economics, Elsevier, vol. 97(C).
    3. David Forsström & Alexander Rozental & Anders Kottorp & Philip Lindner & Markus Jansson-Fröjmark & Hugo Hesser, 2021. "Further Exploration of the Psychometric Properties of GamTest: A Rasch Analysis," IJERPH, MDPI, vol. 18(9), pages 1-12, April.
    4. Filipa Calado & Mark D. Griffiths, 2016. "Il gioco problematico in Europa: una rassegna della letteratura empirica (2000-2016)," PRISMA Economia - Societ? - Lavoro, FrancoAngeli Editore, vol. 2016(3), pages 41-81.

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