Table 4. Full (3-Factor) and restricted (1-Factor) model fit indices across studies.
Fit index | S1 | S2 | S3 | S4 |
---|---|---|---|---|
Three-factor model | ||||
X2/ df | 1.94 | 1.38 | 4.36 | 1.87 |
IFI | .96 | .92 | .95 | .93 |
CFI | .96 | .92 | .95 | .93 |
TLI | .95 | .91 | .94 | .92 |
RMSEA | .047 | .065 | .05 | .065 |
One-factor model | ||||
X2/ df | 4.19 | 1.90 | 9.14 | 3.05 |
IFI | .85 | .81 | .87 | .83 |
CFI | .85 | .81 | .87 | .82 |
TLI | .85 | .78 | .85 | .80 |
RMSEA | .087 | .10 | .08 | .10 |
Note. X2/ df = chi-square-to-degrees-of-freedom ratio, IFI = Incremental Fit Index, CFI = Comparative Fit Index, TLI = Tucker-Lewis coefficient, RMSEA = Root Mean Square Error of Approximation (see Kenny, 2011, for explanations).