Table 2.
Measurement invariance of BSMAS (Italian version) by sex and age
| Model | χ2 | df | Δχ2 | Δdf | Sig. | CFI | ΔCFI | RMSEA | ΔRMSEA |
|---|---|---|---|---|---|---|---|---|---|
| Sex | |||||||||
| Female | 23.666 | 8 | – | – | – | 0.97 | – | 0.078 | – |
| Male | 13.652 | 8 | – | – | – | 0.99 | – | 0.041 | – |
| Configural | 36.695 | 16 | – | – | – | 0.99 | – | 0.059 | – |
| Metric | 42.840 | 21 | 6.145 | 5 | 0.292 | 0.99 | 0.00 | 0.053 | 0.006 |
| Scalar | 86.593 | 26 | 43.753 | 5 | <0.0001 | 0.97 | 0.02 | 0.080 | 0.027 |
| Age | |||||||||
| Adolescents | 9.844 | 8 | – | – | – | 0.99 | – | 0.029 | – |
| Young adults | 23.229 | 8 | – | – | – | 0.99 | – | 0.064 | – |
| Configural | 32.806 | 16 | – | – | – | 0.99 | – | 0.053 | – |
| Metric | 42.618 | 21 | 9.812 | 5 | 0.081 | 0.99 | 0.00 | 0.053 | 0.000 |
| Scalar | 47.331 | 26 | 4.713 | 5 | 0.452 | 0.99 | 0.00 | 0.047 | 0.006 |