Table 3 -.
Unconditional Model Fit
| Fit Indices | Intercept | Linear | Quadratic | Twenge | Quadratic without Time 1 |
|---|---|---|---|---|---|
|
| |||||
| Positive Affect | |||||
| comparative fit index (CFI) | 0.18 | 0.45 | 0.91 | 0.98 | 0.98 |
| standardized root mean square residual (SRMR) | 0.33 | 0.18 | 0.07 | 0.04 | 0.04 |
| root mean square error of approximation (RMSEA) | 0.23 | 0.21 | 0.1 | 0.04 | 0.06 |
| Akaike’s information criterion (AIC) | 8448.18 | 8367.2 | 8233.29 | 8212.22 | 6636.51 |
| Bayesian information criterion (BIC) | 8476.03 | 8405.49 | 8285.5 | 8271.39 | 6684.71 |
| Chi-square | 268.8 | 181.82 | 39.9 | 14.84 | 11.08 |
| degrees of freedom (df) | 19 | 16 | 12 | 10 | 6 |
| p-value | 0 | 0 | 0 | 0.14 | 0.09 |
|
| |||||
| Negative Affect | |||||
| comparative fit index (CFI) | 0.61 | 0.69 | 0.96 | 0.99 | 0.99 |
| standardized root mean square residual (SRMR) | 0.15 | 0.12 | 0.05 | 0.04 | 0.04 |
| root mean square error of approximation (RMSEA) | 0.15 | 0.15 | 0.06 | 0.03 | 0.04 |
| Akaike’s information criterion (AIC) | 7622.84 | 7603.8 | 7536.6 | 7528.02 | 5980.58 |
| Bayesian information criterion (BIC) | 7650.69 | 7642.09 | 7588.81 | 7587.19 | 6028.77 |
| Chi-square | 124.35 | 99.31 | 24.11 | 11.53 | 7.8 |
| degrees of freedom (df) | 19 | 16 | 12 | 10 | 6 |
| p-value | 0 | 0 | 0.02 | 0.32 | 0.25 |