Table 5. Model comparisons across schizophrenia and other mental illnesses, and across genders.
Models compared | Δχ2 | Δdf | P-value | ΔRMSEA | ΔCFI | ΔSRMR |
---|---|---|---|---|---|---|
Mental illness | ||||||
2M vs. 1M | 2.423 | 6 | 0.88 | −0.0082 | 0.000 | 0.0028 |
3M vs. 2M | 3.820 | 6 | 0.70 | −0.0061 | 0.001 | 0.0004 |
4M vs. 3M | 0.376 | 3 | 0.95 | −0.0037 | 0.000 | 0.0022 |
5M vs. 4M | 10.982 | 3 | 0.01 | 0.0042 | −0.001 | −0.0018 |
Gender | ||||||
2G vs. 1G | 8.738 | 6 | 0.19 | −0.0054 | −0.001 | 0.0122 |
3G vs. 2G | 8.938 | 6 | 0.18 | −0.0036 | 0.000 | −0.0014 |
4G vs. 3G | 2.459 | 3 | 0.48 | −0.0026 | 0.000 | 0.0321 |
5G vs. 4G | 4.980 | 3 | 0.17 | −0.0008 | 0.000 | 0.0002 |
Model 1M/1G: Configural model
Model 2M/2G: All first-order factor loadings were invariant between mental illnesses (2M) and genders (2G)
Model 3M/3G: All first-order factor loadings and item intercepts were invariant between mental illnesses (3M) and genders (3G)
Model 4M/4G: All first- and second-order factor loadings, and item intercepts were invariant between mental illnesses (4M) and genders (4G)
Model 5M/5G: All first- and second-order factor loadings, item intercepts, and construct means were invariant between mental illnesses (5M) and genders (5G)
df = degree of freedom; RMSEA = root mean square error of approximation; CFI = comparative fit index; SRMR = standardized root mean square residual