Psychometrics and measurement invariance: Health Literacy Scale for Vietnamese and Indonesian married immigrants

Aims To examine the psychometrics and measurement invariance of the Short‐Form Health Literacy 12‐item questionnaire (HL‐SF12) among Vietnamese and Indonesian married immigrants. Design A cross‐sectional survey design. Methods In total, 1171 Vietnamese and Indonesian married immigrants were enrolled between September 2019 and December 2019. An exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were used to verify the structural validity of the suggested factor structure. The multiple‐group CFA (MGCFA) used a series of hierarchical nested‐in models as a measurement invariance test which confirmed the adequacy of the model fit at each stage. Results/Findings The Kaiser–Meyer–Olkin coefficient was 0.898, and the Bartlett test of sphericity was statistically significant (χ2[66] = 1965.97, p 0.05). Conclusions The HL‐SF12 scale showed acceptable theoretically supported structural validity, equivalent measurement invariance and reliable internal consistency among Vietnamese and Indonesian married immigrants. Measurements of immigrants' HL using the HL‐SF12 could be integrated into future immigrant health policies. Impact As the first study of the measurement invariance of the HL‐SF12 instrument among immigrants. Related factors of immigrants' HL can be further explored to increase immigrants' health and empowerment.