Table 6.
CFA Final model structure for the WURSS-44 at day 3 | ||||
Dimensions 8 restricted | Chi-square | df | χ2/df | CFI |
296.2 | 69 | 4.29 | .951 | |
Number of items used = 34 | TLI | RMSEA | WRMR | |
.991 | .120 | .975 | ||
Time invariance (configural invariance) Days 2 to 7 | ||||
Day | CFI | TLI | RMSEA | WRMR |
2 | .935 | .985 | .123 | 1.040 |
3* | .951 | .991 | .120 | .975 |
4 | .957 | .992 | .119 | .913 |
5 | .972 | .995 | .105 | .843 |
6 | .982 | .995 | .106 | .856 |
7 | .974 | .995 | .097 | .761 |
3* = Data from day 3 was used for original model
CFA = Confirmatory Factor Analysis
CFI = Comparative Fit Index
TLI = Tuker-Lewis Index
RMSEA = Root Mean Square Error of Approximation
WRMR = Weighted Root Mean Square Residual
Hu and Bentler (1999)[58] suggest the following cut off values for good fit, CFI > .95, TLI > .95, RMSEA < .06, and WRMR < .90