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Table 9 Measurement invariance analysis for marital status, employment, and psychiatric history categories based on the theoretical three-factor model

From: Validation of the factor structure and psychometric characteristics of the Arabic adaptation of the sense of coherence SOC-13 scale: a confirmatory factor analysis

Factor χ2 (df) Δ χ2 (Δdf) Δ χ2 P CFI Δ CFI RMSEA ΔRMSEA
Configural invariance: marital 1234 (186)    0.948   0.117  
Metric invariance: marital 1631 (206) 403 (20) < 0.0001 0.929 0.019 0.130 0.013
Configural invariance: employment 1265 (186)    0.942   0.119  
Metric invariance: employment 1431 (206) 166 (20) < 0.0001 0.934 0.008 0.120 0.001
Configural invariance: psych history 1179 (124)    0.945   0.117  
Metric invariance: psych history 1246 (134) 65 (10) < 0.0001 0.942 0.003 0.116 0.001