Table 2.

The results of the Principal Component Analysis of the separation test (N = 167; based on Marx et al.²⁶). In case of each principal component, we highlighted the loading of those items with bold that significantly contributed to that component.

Behavior	Chair	Escape	Whine–door	Bark–wagging	Sit
Door distance	− 0.742	0.159	0.123	− 0.123	0.070
Chair exploration	0.708	0.048	0.174	− 0.167	0.002
Chair distance	0.694	− 0.243	− 0.139	0.361	0.014
Chair orientation	0.659	0.141	0.091	− 0.276	0.179
Rearing	− 0.106	0.832	− 0.093	0.115	0.053
Scratching	− 0.204	0.720	0.115	0.134	0.081
Panting	0.304	0.523	− 0.102	− 0.220	− 0.036
Moving	0.302	0.494	0.387	− 0.219	− 0.169
Laying	− 0.052	− 0.065	− 0.705	− 0.022	0.209
Whining	0.025	− 0.145	0.654	0.287	0.246
Door exploration	− 0.197	0.063	0.635	− 0.189	− 0.041
Barking/yelping	− 0.033	0.470	− 0.014	0.610	− 0.059
Tail-wagging	0.203	0.334	0.220	0.590	− 0.105
Exploration in general	0.086	0.059	0.289	− 0.528	− 0.186
Door orientation	− 0.271	− 0.108	0.274	0.471	0.064
Other vocalization	0.064	0.168	0.148	0.349	− 0.031
Standing	− 0.088	− 0.195	0.285	0.084	− 0.833
Sitting	− 0.039	− 0.109	0.242	0.049	0.858
Cronbach’s alpha	0.7	0.64	0.57	0.52	0.69
Variance explained	13.2%	12.7%	10.8%	10.3%	9.3%