title: The Gambling Symptom Assessment Scale (G-SAS): a reliability and validity study.
abstract: Two hundred seven patients with DSM-IV Pathological Gambling Disorder completed both the Gambling Symptom Assessment Scale (G-SAS) and the Yale-Brown Obsessive-Compulsive Scale--modified for Pathological Gambling (PG-YBOCS) at baseline visit and weekly or biweekly thereafter during the 12-week study period. The week 1 to week 2 visit data were used to assess test-retest reliability. Weekly or biweekly data were used for the G-SAS validity. The PG-YBOCS reliability and validity data have been published previously. We used the PG-YBOCS as the established scale and compared the G-SAS performance with the PG-YBOCS. Test-retest reliability was statistically significant. The correlations between the G-SAS and the PG-YBOCS and Clinical Global Impression rating were excellent. Findings suggest that the G-SAS is reliable and valid in assessing changes in symptoms during a drug treatment study.
authors.affiliation: Department of Psychiatry, University of Minnesota Medical School, Minneapolis, MN 55454, USA. kimxx003@umn.edu
authors.forename: Suck Won
authors.initials: SW
authors.lastname: Kim
authors.forename: Jon E
authors.initials: JE
authors.lastname: Grant
authors.forename: Marc N
authors.initials: MN
authors.lastname: Potenza
authors.forename: Carlos
authors.initials: C
authors.lastname: Blanco
authors.forename: Eric
authors.initials: E
authors.lastname: Hollander
mesh_terms: D007174:Disruptive, Impulse Control, and Conduct Disorders / Q000175:diagnosis* / Q000523:psychology; D005500:Follow-Up Studies; D005715:Gambling / Q000523:psychology*; D006801:Humans; D009271:Naltrexone / Q000031:analogs & derivatives / Q000627:therapeutic use; D009292:Narcotic Antagonists / Q000627:therapeutic use; D009771:Obsessive-Compulsive Disorder / Q000175:diagnosis* / Q000523:psychology; D010555:Personality Inventory / Q000706:statistics & numerical data*; D011594:Psychometrics / Q000706:statistics & numerical data; D015203:Reproducibility of Results
chemical_list: D009292:Narcotic Antagonists; D009271:Naltrexone; C038981:nalmefene