Table 7.

Components and component loadings of the CATPCA (Varimax rotation); variable loadings >0.3 are bolded.

Nr.	Variables	Explanation	PC 1— Social-Startle	PC 2—Whimpering	PC 3—Novel Object	PC 4—Exploration	Total
1	Exploration—whimper	Higher score = longer duration of whimpering	0.216	0.383	0.177	− 0.567
2	Exploration—near stranger	Higher score = longer duration near stranger	0.141	−0.165	0.026	0.575
3	Exploration—tail position	Higher score = higher tail position	−0.059	0.176	0.077	0.694
4	Exploration—activity	Higher score = more activity	0.117	0.127	−0.120	0.850
5	Greeting test—whimper/ignored	Higher score = longer duration of whimpering while person ignored the puppy	0.053	0.832	−0.072	−0.131
6	Greeting test—body contact/ignored	Higher score = longer duration of body contact with person who was ignoring the puppy	0.875	0.137	−0.091	0.090
7	Greeting test—whimper/interaction	Higher score = longer duration of whimpering while person interacted with the puppy	−0.091	0.879	0.032	0.044
8	Greeting test—body contact/interaction	Higher score = longer duration of body contact while person interacted with the puppy	0.845	−0.155	−0.071	0.103
9	Greeting test—person approach score	Higher score = faster approach	0.840	0.132	−0.060	0.099
10	Problem solving latency	Higher score = longer latency	−0.037	−0.100	0.313	− 0.469
11	Problem solving—whimper	Higher score = longer duration of whimpering	−0.023	0.675	0.103	0.178
12	Problem solving—touch object (unsolvable)	Higher score = longer duration of touching object	− 0.366	−0.151	−0.068	0.134
13	Startle stimulus—initial startle reaction	Higher score = more fear indicators	0.496	−0.145	0.012	0.059
14	Startle stimulus—play after noise	Higher score = longer latency to play	0.117	−0.248	0.615	−0.086
15	Startle stimulus—activity after noise	Higher score = more fear indicators	0.464	−0.176	0.377	−0.242
16	Novel object—touch novel object	Higher score = longer duration of touching novel object	0.178	−0.263	− 0.744	0.005
17	Novel Object—whimper	Higher score = longer duration of whimpering	0.172	0.556	0.581	−0.029
18	Novel Object—near person	Higher score = longer duration of time near person (<10 cm away)	0.111	0.045	0.699	−0.075
19	Novel Object approach score	Higher score = faster approach	0.350	−0.135	− 0.661	0.037
	Cronbach ’ s alpha		0.691	0.674	0.66	0.602	0.956
	Eigenvalue		3.086	2.746	2.527	2.251	10.61
	Variance explained		0.162	0.145	0.133	0.118	0.558