Table 4.

Results of the principal component analysis conducted on the Behaviour problems of the dog scale.

	Factor loading
Type of behaviour problem	Fear	Excitability	Aggressivity
Eigenvalue	2.816	2.678	2.392
% of variance	17.6%	16.8%	14.9%
Cronbach α	0.735	0.662	0.617
Fear of other dogs	0.714	0.007	0.115
Fear of other people	0.769	− 0.058	0.205
Fear of new things/situations	0.828	0.059	0.006
Noise phobia	0.742	0.013	− 0.136
Too much whining	0.324	0.593	− 0.117
Chewing/Destruction	− 0.063	0.727	− 0.058
Jumping up	0.049	0.650	− 0.051
Overexcitement	− 0.090	0.773	0.104
Too much barking	0.349	0.446	0.051
Separation anxiety	0.333	.491	− 0.049
Rough play/Pinching	− 0.187	0.478	0.401
Aggression to people	0.254	− 0.098	0.713
Aggression to other dogs	0.108	− 0.028	0.698
Territorial behaviour	− 0.068	0.003	0.791
Food/toy protection	0.033	0.222	0.503
Chasing wild/domesticated animals	− 0.096	0.203	0.496