Table 2. Goodness-of-Fit Model Comparison Among Alternative Bivariate Models of Perceived Control and Health, Using 15.5-Year Americans' Changing Lives Sample, With and Without Additionally Including Education, Gender, Physical Activities, Memory, Social Support, and Depressive Symptoms.
Model | χ2 | df | Δ χ2/df | CFI | RMSEA |
---|---|---|---|---|---|
Zero-order model | |||||
Bidirectional | |||||
Full Coupling | 127.22 | 47 | – | 0.99 | 0.03 |
Equal Coupling | 139.14 | 49 | 11.92 (2)* | 0.99 | 0.03 |
No direction | |||||
No Coupling | 136.39 | 51 | 9.17 (4)* | 0.99 | 0.03 |
Unidirectional | |||||
Coupling γperceived control → health = 0 | 135.29 | 49 | 8.07 (2)* | 0.99 | 0.03 |
Coupling γhealth → perceived control = 0 | 128.66 | 49 | 1.44 (2) | 0.99 | 0.03 |
Education, gender, memory, physical activities, memory, social support, and depressive symptoms included | |||||
Bidirectional | |||||
Full Coupling | 662.84 | 101 | – | 0.94 | 0.06 |
Equal Coupling | 665.32 | 103 | 2.48 (2) | 0.94 | 0.06 |
No direction | |||||
No Coupling | 668.57 | 105 | 5.73 (4) | 0.94 | 0.06 |
Unidirectional | |||||
Coupling γperceived control → health = 0 | 667.16 | 103 | 4.32 (2) | 0.94 | 0.06 |
Coupling γhealth → perceived control = 0 | 663.99 | 103 | 1.15 (2) | 0.94 | 0.06 |
Note. Midlife (aged 25 – 64, n = 2,364); Old Age (aged 65 + years, n = 1,238). CFI = Comparative Fit Index. RMSEA = Root Mean Square Error of Approximation.
p < .05 or below.