Table 5.
Significant factors in the multilevel ordinal regression model of Observer Startle Magnitude.
| Factor | Ref Cat | Variable | Corr. Coeff. (SE) | Variable Wald X2 (p-value) | Factor Wald X2 (p-value) |
|---|---|---|---|---|---|
| Session | Session 4 | Session 1 | −0.659 (1.531) | 0.185 (ns) | 21.678 (<0.005) |
| Session 2 | −0.399 (1.540) | 0.067 (ns) | |||
| Session 3 | 1.685 (1.105) | 2.327 (ns) | |||
| Session 5 | 1.257 (0.451) | 7.756 (<0.01) | |||
| Session 6 | 1.405 (0.468) | 8.989 (<0.005) | |||
| Session 7 | 1.709 (0.608) | 7.893 (<0.005) | |||
| Session 8 | 2.205 (0.521) | 17.930 (<0.001) | |||
| Stimuli | Balloon | Balloon & other | −2.684 (1.236) | 4.711 (<0.05) | 22.540 (<0.001) |
| Model Person | −2.938 (1.466) | 4.017 (<0.05) | |||
| Umbrella | −4.073 (1.451) | 7.876 (<0.01) | |||
| Real Person | −3.265 (1.458) | 5.014 (<0.05) | |||
| Bucket | −2.968 (1.443) | 4.230 (<0.05) | |||
| Bin Bag | −4.688 (1.557) | 9.061 (<0.005) | |||
| ‘Relaxed-tense’ score | 1 (calm) | 2 | −1.029 (0.324) | 10.068 (<0.005) | 19.219 (<0.001) |
| 3 | −1.064 (0.390) | 7.431 (<0.01) | |||
| 4 | 1.047 (0.926) | 1.279 (ns) | |||
| 5 | 1.020 (1.215) | 0.705 (ns) | |||
| Orientation | 3 (facing) | 1 (back) | −0.672 (0.325) | 4.263 (0.05) | 14.827 (<0.001) |
| 2 (90 deg) | −1.038 (0.271) | 14.642 (<0.001) |
The reference category of the response variable was a magnitude of 4 (Flee) and thus a negative estimated coefficient of a predictor indicates a larger response, whereas a positive coefficient indicates a smaller response. Bold text indicates effects that are significant at p < 0.05.