Table 3.
Fit statistics for the age-based and cohort-based trajectory models for each climate change belief.
| Fit statistics | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Belief | Model | χ2 | df | P value | Δχ2 | Δdf | CFI | ΔCFI | RMSEA | ΔRMSEA | SRMR | ΔSRMR | AIC | Sample-size adjusted BIC |
| Climate change reality | Age-based trajectory (constrained) | 19,744.90 | 773 | <0.001 | — | — | 0.749 | — | 0.072 | — | 0.175 | — | 481,353.93 | 481,394.29 |
| Cohort-based trajectory (constrained slopes) | 11,911.51 | 762 | <0.001 | 7833.39 | 11 | 0.853 | −0.104 | 0.056 | 0.016 | 0.126 | 0.049 | 473,542.54 | 473,646.31 | |
| Cohort-based trajectory (unconstrained) | 11,707.13 | 740 | <0.001 | 204.38 | 22 | 0.855 | −0.002 | 0.056 | 0.000 | 0.131 | −0.005 | 473,382.16 | 473,612.77 | |
| Climate change caused by humans | Age-based trajectory (constrained) | 17,275.69 | 773 | <0.001 | — | — | 0.808 | — | 0.067 | — | 0.126 | — | 502,352.96 | 502,393.31 |
| Cohort-based trajectory (constrained slopes) | 8284.12 | 762 | <0.001 | 8991.57 | 11 | 0.913 | −0.105 | 0.046 | 0.021 | 0.078 | 0.048 | 493,383.39 | 493,487.13 | |
| Cohort-based trajectory (unconstrained) | 8095.93 | 740 | <0.001 | 188.19 | 22 | 0.914 | −0.001 | 0.046 | 0.000 | 0.081 | −0.003 | 493,239.20 | 493,469.73 | |
χ2 chi-square, df degrees of freedom, CFI Comparative Fit Index, RMSEA root mean square error of approximation, SRMR standardized root mean square residual, AIC Akaike Information Criterion, BIC Bayesian Information Criterion.