Table 5.
Measurement Invariance of the NCS-6 Across Countries and Gender.
| Models of invariance | CFI | RMSEA | ΔCFI | ΔRMSEA | |
|---|---|---|---|---|---|
| Country | Configural | .975 | .070 | — | — |
| United States (n = 821); United Kingdom (n = 476) | Metric | .972 | .065 | .002 | .005 |
| Scalar | .968 | .064 | .005 | .001 | |
| Gender | Configural | .972 | .073 | — | — |
| Female (n = 606); male (n = 672) | Metric | .970 | .068 | .002 | .006 |
| Scalar | .961 | .069 | .008 | .002 |
Note. NCS = Need for Cognition Scale; CFI = comparative fit index; RMSEA = root mean square error of approximation. Δ = differences between the current and the previous model.