SOGS and DSM-IV in the British Gambling Prevalence Survey: Reliability and Factor Structure

Abstract

This article examines the psychometric performance and reliability of two problem gambling scales (the South Oaks Gambling Screen [SOGS], and a scale based on the Diagnostic and Statistical Manual (4th edn) [DSM-IV]) and their constituent items, based upon data from the first British Gambling Prevalence Survey (Sproston et al ., 2000). Separate factor analyses of SOGS items and DSM-IV items suggested the existence of two independent factors in each case: dependence and gambling-related problems. Scores based upon SOGS and DSM factors correlated only moderately. It is concluded that no single existing screening questionnaire adequately reflects the multi-dimensional nature of problem gambling.