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. 2007 Aug 14;274(1625):2579–2585. doi: 10.1098/rspb.2007.0726

Table 1.

Percentage of token B choice in the five conditions of experiment 1 across the total number of sessions and corresponding value of the single-sample t-test for each subject (*p<0.01, **p<0.001, ***p<0.0001).

B correct same value A correct


1B versus 1A 1B versus 2A 1B versus 3A 1B versus 4A 1B versus 5A
strategy 1: maximization
Sandokan 87.5 66.9 32.5 13.8 5.0
t39=15.8*** t39=3.4* t39=−3.2* t39=−11.7*** t39=−28.1***
Gal 95.0 79.4 45.6 22.5 11.9
t39=20.2*** t39=8.8*** t39=−1.0 t39=−5.9*** t39=−12.3***
Paprica 90.0 73.8 45.0 22.5 16.3
t39=16.0*** t39=6.4*** t39=−1.3 t39=−7.5*** t39=−9.0***
Pepe 82.5 66.3 43.1 29.4 30.0
t39=9.6*** t39=3.5* t39=−1.4 t39=−4.5*** t39=−9.0**
strategy 2: only token B
Virginia 96.3 90.6 79.4 65.0 53.1
t39=32.4*** t39=14.6*** t39=7.2*** t39=3.4* t39=0.7
Pippi 94.4 91.9 85.6 70.6 71.9
t39=26.5*** t39=17.2*** t39=11.5*** t39=4.0** t39=4.4***
Robinia 92.5 89.4 89.4 91.9 84.4
t39=13.6*** t39=9.4*** t39=9.2*** t39=11.9*** t39=7.4***
Cammello 95.6 90.6 93.1 90.6 86.3
t39=30.0*** t39=19.0*** t39=21.6*** t39=12.7*** t39=9.6***
strategy 3: numerousness
Robot 71.3 16.9 6.9 2.5 0
t39=5.1*** t39=−9.1*** t39=−14.5*** t39=−39.5**
Carlotta 80.0 45.0 15.0 11.3 8.8
t39=9.2*** t39=−1.1 t39=−10.1*** t39=−13.7*** t39=−11.3***