Table 2.
Confirmatory Factor Analysis Model
| Variables | F1 | F2 | F3 | F4 | h2 |
|---|---|---|---|---|---|
| Standardized factor loadings (SE) | |||||
| Activity | |||||
| Active | .637 (.034) | .0 | .0 | .0 | .406 |
| Cage Shake* | .453 (.043) | .0 | .0 | .0 | .205 |
| Environmental Explore | .683 (.033) | .0 | .0 | .0 | .467 |
| Emotionality | |||||
| Convulsive Jerk* | .0 | .891 (.083) | .0 | .0 | .794 |
| Fear Grimace | .0 | .684 (.108) | .0 | .0 | .468 |
| Self-Clasp* | .0 | .343 (.030) | .0 | .0 | .118 |
| Vocal Coo | .0 | .565 (.084) | .0 | .0 | .319 |
| Aggression | |||||
| Threat | .0 | .0 | .775 (.039) | .0 | .600 |
| Vocal Bark | .0 | .0 | .626 (.036) | .0 | .391 |
| Vocal Other* | .0 | .0 | .440 (.042) | .0 | .194 |
| Displacement | |||||
| Tooth Grind | .0 | .0 | .0 | .730 (.103) | .533 |
| Yawn* | .0 | .0 | .0 | .582 (.089) | .339 |
| Factor correlations (SE) | |||||
| F1 – Activity | 1.0 | ||||
| F2 – Emotionality | .293 (.015) | 1.0 | |||
| F3 – Aggression | .244 (.015) | .098(.015) | 1.0 | ||
| F4 – Displacement | .201 (.015) | .159 (.016) | .221 (.015) | 1.0 | |
Final four-factor model for behavioral response to human intruder test. For each behavior the factor loading (with standard error [SE]) is presented, along with its implied communality (h2), which reflects the proportion of variance in each behavior that is accounted for by the factor.
*
Variable treated as dichotomous present/absent