Table 7.
Invariance model | Constraints | dfa | χ2 | CFIb | BICc | SRMRd | RMSEAe | TLIf |
Configural | Factor structure | 584 | 1796 | .936 | 235 | .051 | .065 | .929 |
Weak/metricg | Structure and loadings | 609 (+25) | 1819 (+23) | .936 (–.000) | 86 (–149) | .053 (+.002) | .064 (–.001) | .932 (+.003) |
Strong/scalarg | Structure, loadings, and item intercepts | 627 (+18) | 1857 (+38) | .935 (–.001) | 0 (–86) | .054 (+.001) | .063 (–.000) | .933 (+.001) |
adf: degrees of freedom.
bCFI: comparative fit index.
cBIC: Bayesian information criterion.
dSRMR: standardized root mean square residual.
eRMSEA: root mean square error of approximation.
fTLI: Tucker-Lewis index.
gValues in parentheses provide the comparisons with the less-constrained models reported in the previous row, shown as the difference between the values.