SOGS: South Oaks Gambling Screen

About the SOGS

The South Oaks Gambling Screen (SOGS) was developed by Henry Lesieur and Sheila Blume at South Oaks Hospital in New York in 1987. It was designed as a practical screening instrument to identify pathological gambling in clinical populations and was one of the first standardized screening tools for gambling disorder.

The SOGS is based on DSM-III criteria for pathological gambling and has been widely used in epidemiological research, treatment settings, and general population surveys. Despite the subsequent revision of DSM criteria through DSM-IV and DSM-5-TR, the SOGS retains strong utility as a screening instrument, with numerous international validations demonstrating its cross-cultural applicability.

What the Assessment Measures

The SOGS assesses the following dimensions of gambling behavior:

• Preoccupation with gambling and urge to return and win back losses ("chasing")
• Financial consequences: borrowing money, selling possessions, or relying on others to cover gambling debts
• Social and family consequences: conflict, secrecy, or criticism from others about gambling
• Loss of control: failed attempts to stop or reduce gambling
• Criminal behavior: e.g., writing bad checks, theft to fund gambling

Items reflect both historical and current gambling-related experiences.

Scoring

The SOGS includes 20 scored questions (plus additional demographic and gambling history items that are not scored).

Total score range: 0–20

A cutoff of ≥5 was validated against DSM-III diagnosis of pathological gambling, demonstrating sensitivity of 98% and specificity of 99.5% in the original clinical sample.

Population and Format

• Ages: Adolescent and adult versions available; original scale developed for adults
• Format: Self-report questionnaire
• Administration time: Approximately 10–15 minutes
• Setting: Clinical intake, population surveys, treatment programs

Psychometric Properties

The SOGS has strong psychometric properties in clinical populations:

• High internal consistency (Cronbach's α ≈ 0.85–0.97)
• Good test-retest reliability
• Sensitivity 98%, specificity 99.5% (Lesieur & Blume, 1987; clinical sample)
• Specificity decreases in general population samples; lower cutoffs (≥3) may improve performance in non-clinical settings

Cross-cultural validation studies confirm acceptable performance across diverse populations, including Australian (Battersby et al., 2002) and Chinese adolescent samples (Zhou et al., 2022).

Limitations

• The SOGS was developed based on DSM-III criteria; it does not fully align with current DSM-5-TR criteria for Gambling Disorder (which removed the criminal behavior item and revised threshold)
• In general population samples with lower base rates of pathological gambling, the SOGS may generate more false positives; clinicians should interpret scores in context
• A revised version (SOGS-R) is available with updated language and scoring

Who the SOGS Is For

The SOGS is appropriate when:

• A client presents with financial difficulties, relationship problems, or co-occurring substance use where gambling involvement is suspected
• Screening for gambling disorder as part of an addiction or behavioral health intake
• Monitoring treatment progress in clients receiving gambling disorder treatment

References

• Lesieur HR, Blume SB. (1987). The South Oaks Gambling Screen (SOGS): a new instrument for the identification of pathological gamblers. American Journal of Psychiatry, 144(9), 1184–1188. PMID: 3631315
• Battersby MW, Thomas LJ, Tolchard B, Esterman A. (2002). The South Oaks Gambling Screen: a review with reference to Australian use. Journal of Gambling Studies, 18(3), 257–271. PMID: 12375383
• Zhou H, Chen JH, Ling H, et al. (2022). Psychometric Properties of the South Oaks Gambling Screen Revised for Adolescents in Chinese Adolescent Gamblers. International Journal of Public Health, 67, 1604820. PMID: 36466009