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. Author manuscript; available in PMC: 2005 Nov 14.
Published in final edited form as: J Exp Psychol Anim Behav Process. 2005 Apr;31(2):213–225. doi: 10.1037/0097-7403.31.2.213

Figure 10.

Figure 10

Interreinforcement time (top) and trial duration (bottom) distributions in a concurrent RI 15-s–RI 45-s schedule. Data are averaged from Cerutti and Staddon (2004b, Experiment 3); error bars are standard deviations. RI = random interval.