Measuring HIV- and TB-related stigma among health care workers in South Africa: a validation and reliability study
OBJECTIVE: To test four scales measuring different aspects of stigma: respondent's external stigma (RES) and others' external stigma (OES) towards TB as well as HIV across different professional categories of HCWs.
DESIGN: The current study employs data from a study on HIV and TB stigma among HCWs, a cluster randomised controlled trial for the collection of data among 882 HCWs in the Free State Province of South Africa. Confirmatory factor analyses and structural equation modelling were used to assess the validity and reliability of the scales.
RESULTS: All four scales displayed adequate internal construct validity. Subsequent analysis demonstrated that all four scales were metric-invariant, and that the OES scales were even scalar-invariant across patient and support staff groups. The scales displayed good reliability and external construct validity.
CONCLUSION: Our results support the use of the scales developed to measure TB and HIV stigma among HCWs. Further research is, however, needed to fine tune the instruments and test them across different resource-limited countries.
Document Type: Research Article
Affiliations: 1: Department of Sociology and Centre for Longitudinal and Life Course Studies, University of Antwerp, Antwerp, Belgium; Centre for Health Systems Research and Development, University of the Free State, Bloemfontein, South Africa 2: Department of Sociology and Centre for Longitudinal and Life Course Studies, University of Antwerp, Antwerp, Belgium 3: Centre for Health Systems Research and Development, University of the Free State, Bloemfontein, South Africa
Publication date: November 1, 2017
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