Cadernos de Saúde Pública
versão impressa ISSN 0102-311X
NASCIMENTO, Maria Isabel do; REICHENHEIM, Michael Eduardo e MONTEIRO, Gina Torres Rego. Dimensional structure of the Brazilian version of the Scale of Satisfaction with Interpersonal Processes of General Medical Care. Cad. Saúde Pública [online]. 2011, vol.27, n.12, pp. 2351-2363. ISSN 0102-311X. http://dx.doi.org/10.1590/S0102-311X2011001200007.
The objective of this study was to reassess the dimensional structure of a Brazilian version of the Scale of Satisfaction with Interpersonal Processes of General Medical Care, proposed originally as a one-dimensional instrument. Strict confirmatory factor analysis (CFA) and exploratory factor analysis modeled within a CFA framework (E/CFA) were used to identify the best model. An initial CFA rejected the one-dimensional structure, while an E/CFA suggested a two-dimensional structure. The latter structure was followed by a new CFA, which showed that the model without cross-loading was the most parsimonious, with adequate fit indices (CFI = 0.982 and TLI = 0.988), except for RMSEA (0.062). Although the model achieved convergent validity, discriminant validity was questionable, with the square-root of the mean variance extracted from dimension 1 estimates falling below the respective factor correlation. According to these results, there is not sufficient evidence to recommend the immediate use of the instrument, and further studies are needed for a more in-depth analysis of the postulated structures.
Palavras-chave : Physician-Patient Relations; Questionnaires; Validation Studies; Statistical Factor Analysis.