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[French validation of the Verona Service Satisfaction Scale-VSSS-54F]
M Corbière1, A Lesage, S Lauzon
1Research Associate Mental Health Evaluation & Community Consultation Unit (MHECCU), University of British Columbia, Dept. of Psychiatry, St Paul's Hospital, 1081 Burrard Street, Comox Building, Room 306, Vancouver, BC, V6Z 1Y6 Canada.
L'Encephale
|October 22, 2003
Summary
This study refined the French Verona Service Satisfaction Scale (VSSS-54F) into a five-dimension model, enhancing its utility for assessing mental health service satisfaction. The revised scale offers improved psychometric properties for evaluating patient experiences in mental healthcare settings.
Area of Science:
- Psychiatry
- Psychometrics
- Health Services Research
Background:
- The Verona Service Satisfaction Scale (VSSS) assesses satisfaction of individuals with serious mental illness with services.
- The French version (VSSS-54F) was adapted from the Italian VSSS-54, initially comprising seven dimensions.
- Previous analyses aggregated 'Information' and 'Access to services' dimensions, leading to a six-dimension structure requiring validation.
Purpose of the Study:
- To ascertain the psychometric properties of the French version of the VSSS (VSSS-54F).
- To validate the six-dimension structure of the VSSS-54F using Confirmatory Factorial Analysis (CFA).
- To refine the VSSS-54F structure for improved assessment of mental health service satisfaction.
Main Methods:
- Confirmatory Factorial Analysis (CFA) was performed using EQS Software on the VSSS-54F.
- 150 clients in intensive case management programs completed the VSSS-54F.
- Model fit was evaluated using Chi square/df ratio, NNFI, CFI, robust CFI, and RMSEA.
Main Results:
- The original six-dimension model (M1) showed unsatisfactory fit indices.
- A revised five-dimension model (M2) demonstrated satisfactory fit indices (Chi Square/df=1.36, RMSEA=0.08).
- The revised model includes: Psychiatrists/Psychologists' skills and behaviour, Nursing staff/social workers' skills and behaviour, Information and access to services, Services efficacy, and Relatives' involvement.
Conclusions:
- The study confirmed and adjusted the factorial structure of the VSSS, resulting in a validated five-dimension model.
- The revised VSSS-54F (25 items) offers enhanced psychometric properties for evaluating patient satisfaction.
- Future research should focus on adapting the scale to the VSSS-European version (VSSS-EU) and assessing its reliability and validity.