Table 7 Testing for structural invariance across demographic variables.
Demographic variables | χ2/df | CFI | ΔCFI | TLI | ΔTLI | SRMR | RMSEA (90%CI) |
|---|---|---|---|---|---|---|---|
Gender (male/female) | |||||||
Unconstrained | 1.111 | 0.999 | – | 0.998 | – | 0.015 | 0.009 (0.000–0.024) |
Structural weights | 0.985 | 1.000 | 0.001 | 1.000 | 0.002 | 0.023 | 0.000 (0.000–0.019) |
Structural covariances | 1.507 | 0.994 | − 0.005 | 0.991 | − 0.007 | 0.034 | 0.020 (0.009–0.029) |
Structural residuals | 1.493 | 0.993 | − 0.006 | 0.991 | − 0.007 | 0.032 | 0.019 (0.010–0.028) |
School stage (middle school/high school) | |||||||
Unconstrained | 1.277 | 0.998 | – | 0.995 | – | 0.021 | 0.015 (0.000–0.028) |
Structural weights | 1.064 | 0.999 | 0.001 | 0.999 | 0.004 | 0.024 | 0.007 (0.000–0.021) |
Structural covariances | 1.493 | 0.994 | − 0.004 | 0.991 | − 0.004 | 0.032 | 0.019 (0.009–0.029) |
Structural residuals | 1.594 | 0.991 | − 0.007 | 0.989 | − 0.006 | 0.032 | 0.021 (0.013–0.029) |
Residence type (rural/urban) | |||||||
Unconstrained | 1.112 | 0.998 | – | 0.997 | – | 0.013 | 0.009 (0.000–0.024) |
Structural weights | 0.951 | 1.000 | 0.002 | 1.000 | 0.003 | 0.020 | 0.000 (0.000–0.018) |
Structural covariances | 1.865 | 0.992 | − 0.006 | 0.993 | − 0.004 | 0.030 | 0.026 (0.017–0.034) |
Structural residuals | 1.836 | 0.991 | − 0.007 | 0.994 | − 0.003 | 0.032 | 0.025 (0.018–0.033) |
Sports type (individual sports/team sports) | |||||||
Unconstrained | 1.892 | 0.994 | – | 0.984 | – | 0.022 | 0.026 (0.015–0.037) |
Structural weights | 1.691 | 0.993 | − 0.001 | 0.988 | 0.004 | 0.024 | 0.023 (0.013–0.032) |
Structural covariances | 1.962 | 0.989 | − 0.005 | 0.983 | − 0.001 | 0.025 | 0.027 (0.019–0.035) |
Structural residuals | 1.893 | 0.987 | − 0.007 | 0.984 | 0.000 | 0.029 | 0.026 (0.019–0.034) |
