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. Author manuscript; available in PMC: 2016 Mar 1.
Published in final edited form as: Behav Processes. 2014 Jul 19;112:49–60. doi: 10.1016/j.beproc.2014.07.006

Figure 4.

Figure 4

Comparison response rates in pecks/s (± 1 SEM) for the pigeons in Experiment 1 on arbitrary matching (AB) baseline trials (open circles) and the non-reinforced AC transitivity probe trials (filled circles) averaged over the eight test sessions. Positive = reinforced baseline trials and probe trials consisting of samples from reinforced AB baseline relations and comparisons from reinforced BC baseline relations. Negative = non-reinforced baseline trials and probe trials consisting of samples from reinforced AB baseline relations and comparisons from non-reinforced BC baseline relations or vice versa.