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. Author manuscript; available in PMC: 2013 Mar 1.
Published in final edited form as: Anim Cogn. 2011 Sep 11;15(2):187–199. doi: 10.1007/s10071-011-0445-y

Table 1.

Descriptive statistics for performance in forced-take and choice-take conditions

Condition N Mean accuracy (SEM)
Difficult stimuli Easy stimuli
Forced-take 7 0.58 (0.016) 0.81 (0.031)
Choice-take 7 0.46 (0.091) 0.84 (0.055)