AI Article Synopsis

  • * A survey of 4,484 Finns aged 15-74 revealed that 14.9% showed signs of problem gambling, but many SOGS items had low endorsement rates, indicating varied experiences of gambling issues among individuals.
  • * Analysis using Confirmatory Factor Analysis (CFA) and Multidimensional Item Response Theory (MIRT) identified two correlated dimensions of gambling impact: one focusing on personal consequences and the other on effects on others, suggesting a bifactor model that could provide

Article Abstract

The underlying structure of problematic gambling behaviors, such as those assessed by the South Oaks Gambling Screen (SOGS), remain unknown: Can problem gambling be assessed unidimensionally or should multiple qualitatively different dimensions be taken into account, and if so, what do these qualitative dimensions indicate? How significant are the deviations from unidimensionality in practice? A cross-sectional random sample of Finns aged 15-74 (n = 4,484) was drawn from the Population Information Registry and surveyed in 2011-2012. Analyses were conducted using descriptive statistics, Confirmatory factor analysis (CFA) and multidimensional item response theory (MIRT) models. Altogether, 14.9% of the population endorsed at least one of the 20 SOGS items, but nine items had low endorsement rates (≤ 0.2%). CFA and MIRT techniques suggested that individuals differed from each other in two positively correlated (r = 0.70) underlying dimensions: "impact on self primarily" and "impact on others also". This two-factor correlated-factors model can be reinterpreted as a bifactor model with one general gambling-problem factor and two specific factors with similar interpretation as in the correlated-factors model but with non-overlapping items. The two specific factors may provide clinically useful information without extra costs of assessment.

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http://dx.doi.org/10.1111/sjop.12357DOI Listing

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