Table 3.
Percent of variance in perceived stress explained with multilevel modeling including fixed and random effects estimates.
| Model | Coeff | SE | % Variance explained | Measures of model fit
|
|
|---|---|---|---|---|---|
| −2LL | Residual variance | ||||
| Model 0. Fixed intercept only | – | 29,493.58 | 4.30 | ||
| Intercept | 3.07* | (0.15) | |||
| Model 00. Fixed intercept & random intercepts | 6.3 | 29,091.11 | 4.03 | ||
| Intercept | 3.07* | (0.15) | |||
| Model 1. Fixed intercept, random intercepts, & situations | 76.0 | 17,729.70 | 0.77 | ||
| Intercept | 1.42* | (0.30) | |||
| Situations | * | ||||
| Model 2. Fixed intercept & covariates | 75.1 | 19,936.98 | 1.07 | ||
| Intercept | 3.07* | (0.01) | |||
| F1 core stress features | 1.76* | (0.02) | |||
| F2 experience | −0.01 | (0.02) | |||
| F3 certainty | −0.10* | (0.02) | |||
| F4 imagery | −0.09* | (0.02) | |||
| Model 3. Fixed intercept, covariates, & random intercepts | 81.4 | 18,030.63 | 0.80 | ||
| Intercept | 3.07* | (0.15) | |||
| F1 core stress features | 1.82* | (0.02) | |||
| F2 experience | −0.05* | (0.01) | |||
| F3 certainty | 0.00 | (0.02) | |||
| F4 imagery | 0.04* | (0.02) | |||
| Model 4. Fixed intercept, covariates, random intercepts, & random F1 slopes | 84.0 | 17,093.68 | 0.69 | ||
| Intercept | 3.09* | (0.15) | |||
| F1 core stress features | 1.86* | (0.11) | |||
| F2 experience | −0.01 | (0.01) | |||
| F3 certainty | −0.01 | (0.02) | |||
| F4 imagery | 0.03 | (0.02) | |||
| Model 5. Fixed intercept, covariates, random intercepts, random F1 slopes, & situations | 88.0 | 15,238.83 | 0.53 | ||
| Intercept | 2.43* | (0.26) | |||
| F1 core stress features | 1.16* | (0.10) | |||
| F2 experience | 0.03 | (0.01) | |||
| F3 certainty | −0.04 | (0.02) | |||
| F4 imagery | 0.08* | (0.02) | |||
| Situations | ⌘* | ||||
Note. “Covariates” refers to the four factors from Table 2. F1 is Factor 1, etc. Coeff is coefficient. SE is standard error. ⌘ Indicates that the situations factor was significant, and that, due to space, the 571 freely estimated values for the 572 situations are not reported. Please see Table 4 for a sampling of these values and for additional information.
*
p < 0.05.