Table 4.

Factors extracted by the factor analysis of all measures when analyzed with both stress tests combined, or with separation and car tests separately.

	Combined		Separation		Car
Measure	MR1 stress	MR2 temp	MR1 stress	MR2 temp	MR1 stress	MR2 temp
HR	0.86	0.06	0.58	0.01	0.80	0.10
QBA PC1	0.84	−0.04	0.90	−0.18	0.74	0.26
Cortisol	0.73	0.22	0.52	0.07	0.71	0.26
Activity	−0.06	−0.32	0.68	−0.17	−0.69	−0.13
Whining	0.43	0.01	0.56	0.12	–	–
Distance traveled	–	-	0.53	−0.34	–	–
Lip licking	–	–	–	–	0.68	0.01
HRV	−0.38	−0.17	−0.04	−0.31	−0.81	0.05
Nose mean	0.27	0.80	0.00	0.73	0.26	0.85
Ear mean	−0.03	0.73	−0.20	0.86	−0.07	0.72
Eye mean	−0.09	0.68	−0.29	0.50	0.08	0.69
Standing	−0.03	0.04	0.08	−0.04	−0.01	−0.08
Sitting	−0.14	0.05	0.03	0.09	−0.07	−0.07
Lying	−0.15	0.04	0.02	−0.06	−0.14	−0.01
Glucose	0.13	−0.12	0.15	−0.19	0.16	0.04
IgA	−0.36	0.01	−0.20	0.11	−0.26	−0.38
Variance explained (%)	18.4	13.2	17.6	12.4	24.7	14.4

Loadings ≥0.50 are in bold.