Factor structure of the Gambling Symptom Assessment Scale among treatment-seeking adults in Singapore

Hui Shan Rebecca Ong, Chao-Xu Peh, P.V. Asharani and Song Guo

International Gambling Studies, 2016, vol. 16, issue 3, 442-454

Abstract: The revised 12-item Gambling Symptom Assessment Scale (G-SAS) is a measure designed to assess gambling symptom severity. However, its factor structure has not been examined. The present study investigates the factor structure of the G-SAS based on a treatment-seeking population in Singapore. Participants were 521 patients presenting with problem gambling at a tertiary psychiatric hospital. Patients completed the G-SAS, gambling-related measures and the Personal Wellbeing Index (PWI), and were assessed by a psychiatrist for pathological gambling (PG) based on DSM-IV-TR criteria. Exploratory factor analysis resulted in a two-factor solution, with factors indicating (1) gambling impulse and (2) adverse consequences. Together, both factors explained for 77.10% of variance in G-SAS scores. The two-factor model was subsequently confirmed based on confirmatory factor analysis. Additionally, G-SAS scores were associated with multiple gambling-related indicators and discriminated between patients with and without a diagnosis of PG. Findings from the study suggest that the G-SAS consists of two factors, and is a reliable and valid tool for the assessment of gambling symptom severity in clinical settings.

Date: 2016
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DOI: 10.1080/14459795.2016.1223149

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International Gambling Studies is currently edited by Katie Donnelly, David Marshall, Bronwyn Stuart, Alex Blaszczynski and Jan McMillen

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