title: Development and psychometric properties of the Verona Service Satisfaction Scale for methadone-treated opioid-dependent patients (VSSS-MT).
abstract: We adapted the 32-item Verona Service Satisfaction Scale (VSSS-32) to assess opioid-dependent patient satisfaction with services received from methadone treatment centres. The preliminary version of the VSSS for methadone treatment (VSSS-MT) was filled out anonymously and completed by 516 randomly recruited patients. After exploratory factor analysis and item refinement, the definitive 27-item VSSS-MT accounted for 58.8% of the total variance, comprising four factors: Basic Interventions, Specific Interventions, Social Worker Skills, and Psychologist Skills. These factors showed good to excellent internal reliabilities (Chronbach's alpha: 0.91, 0.85, 0.87, and 0.92, respectively). At test-retest, intraclass correlation coefficients of VSSS-MT overall and factor scores were fair to good. The results of this study suggest that the VSSS-MT measures, briefly but also multidimensionally, opioid-dependent patient satisfaction with methadone treatment centres.
authors.affiliation: Addictive Behaviours Unit, Department of Psychiatry, Hospital de la Santa Creu i Sant Pau, Autónoma University of Barcelona School of Medicine, Sant Antoni Ma Claret, 167, 08025, Barcelona, Spain. jperezc@hsp.santpau.es
authors.forename: José
authors.initials: J
authors.lastname: de los Cobos
authors.forename: Sergi
authors.initials: S
authors.lastname: Valero
authors.forename: Gonzalo
authors.initials: G
authors.lastname: Haro
authors.forename: Guila
authors.initials: G
authors.lastname: Fidel
authors.forename: Gemma
authors.initials: G
authors.lastname: Escuder
authors.forename: Joan
authors.initials: J
authors.lastname: Trujols
authors.forename: Juan Carlos
authors.initials: JC
authors.lastname: Valderrama
mesh_terms: D000328:Adult; D003430:Cross-Sectional Studies; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D008605:Mental Health Services / Q000592:standards; D008691:Methadone / Q000627:therapeutic use*; D009294:Narcotics / Q000627:therapeutic use*; D009293:Opioid-Related Disorders / Q000534:rehabilitation*; D017060:Patient Satisfaction; D011594:Psychometrics; D011795:Surveys and Questionnaires / Q000592:standards*
chemical_list: D009294:Narcotics; D008691:Methadone