Validation of the Warwick-Edinburgh Mental Well-Being Scale for the Mental Health Surveillance (MHS) of German adults

Table 3 Model fit indices resulting from CFA using maximum-likelihood estimation with robust standard errors

Model	χ²_(df)	RMSEA (90%CI)*	CFI	SRMR	AIC
WEMWBS
One-factor model	1063.220_(77)*	0.109 (0.102–0.116)	0.909	0.053	29577.536
Three-factor model	637.344_(74)*	0.083 (0.076–0.090)	0.949	0.046	29157.660
Bifactor model	339.882_(61)*	0.064 (0.056–0.072)	0.975	0.025	28886.198
SWEMWBS
One-factor model	348.084_(14)*	0.149 (0.133–0.166)	0.909	0.059	16025.163
Three-factor model	122.645_(11)*	0.097 (0.079–0.116)	0.970	0.036	15805.724
Bifactor model	13.845_(5)*	0.039 (0.008–0.068)	0.998	0.008	15708.925

Note. N = 1048. CFA = Confirmatory Factor Analyses, WEMWBS = Warwick-Edinburgh Mental Well-Being Scale, SWEMWBS = Warwick-Edinburgh Mental Well-Being Scale – Short Form. χ² = chi-square, RMSEA = robust root mean square error of approximation, 90% CI = 90% confidence interval, CFI = robust comparative fit index, SRMR = standardized root mean square residual, AIC = Akaike information criterion. * p < .001

ISSN: 1477-7525