Table 4 Summary of nested confirmatory factor analysis tests for trait and method effects
Model | χ2 | df | p | Model comparison | χ2 difference | df | p |
---|---|---|---|---|---|---|---|
Null (1) | 20,004.946 | 630 | < 0.001 | (1)–(2) | 18,263.962 | 64 | < 0.001 |
Trait-only (2) | 1740.984 | 566 | < 0.001 | (3)–(4) | 8841.861 | 64 | < 0.001 |
Method-only (3) | 10,168.425 | 594 | < 0.001 | (1)–(3) | 9836.521 | 36 | < 0.001 |
Trait-method (4) | 1326.564 | 530 | < 0.001 | (2)–(4) | 414.420 | 36 | < 0.001 |