Table 2.

Factors derived from PCA on the variables measured in the box test.

	Components
Variable	Inflexibility	Perseveration
Latency deep condition	0.87
Number of successful trials	−0.87
Duration close to box	0.86
Latency center condition	0.85
Paw errors		0.85
Nose errors		0.84
% variance	50.18	23.89
Cronbach's α	0.88	0.61

KMO = 0.53; Bartlett: χ² = 178.4, df = 15, p < 0.001.