The Lie/Bet Questionnaire for screening pathological gamblers: a follow-up study

Area of Science:

• Psychiatry
• Psychology
• Behavioral Science

Background:

• Pathological gambling is a recognized disorder requiring effective screening tools.
• Previous research established a two-item screening questionnaire with high sensitivity and specificity.
• Ongoing validation is crucial for clinical utility and diagnostic accuracy.

Purpose of the Study:

• To validate a two-item screening questionnaire for pathological gambling.
• To assess the sensitivity, specificity, and predictive values of the questionnaire in a new sample.
• To confirm its utility for diagnosing gambling disorder according to DSM-IV criteria.

Main Methods:

• The study involved 295 men and 128 women, including individuals diagnosed with pathological gambling and control subjects.
• The two-item screening questionnaire was administered to all participants.
• Statistical analysis was performed to calculate sensitivity, specificity, and predictive values.

Main Results:

• The questionnaire achieved a sensitivity of 1.00 and a specificity of .85 in the tested sample.
• The predictive value of a positive result was .78, and the predictive value of a negative result was 1.00.
• These performance metrics indicate strong diagnostic capabilities.

Conclusions:

• The two-item screening questionnaire is a valuable and effective tool for screening pathological gambling.
• It aids in the accurate identification of individuals meeting DSM-IV criteria for gambling disorder.
• The questionnaire's high performance supports its use in clinical settings for early detection and intervention.