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. Author manuscript; available in PMC: 2019 Jan 27.
Published in final edited form as: Psychol Sci. 2010 Feb 16;21(3):360–365. doi: 10.1177/0956797610362218

Fig. 3.

Fig. 3.

Mean percentage correct on the object-choice task for each group in each declarative condition. Performance was evaluated relative to chance (μ = 50%) using one-sample t tests, *p < .05, **p < .01, ***p < .001. Error bars represent standard errors. YNPRC = Yerkes National Primate Research Center of Emory University; GATI = Great Ape Trust of Iowa; LRC=Language Research Center of Georgia State University.