Table 5.

Factors derived from PCA on the variables measured in the reversal-learning test.

	Components
Variable	Choice time	Certainty
Latency to choice in reversal phase	0.86
Latency to choice in acquisition phase	0.77
Duration close to objects	0.63
Correct choices in last acquisition		0.87
Correct choices in reversal phase		−0.70
% variance	39.24	22.84
Cronbach's α	0.61	0.33

KMO = 0.61; Bartlett: χ² = 37.47, df = 10, p < 0.001.