Fig 5.

Number of responses to baseline and equivalence test compound stimuli during equivalence test for Subjects P9, P10, P11 and P21. The left portion presents the results of Session 1 and the right portion presents the results of Session 2. In each graph, the left portion presents the baseline compounds and the right portion presents the equivalence test compounds. Black columns refer to “related” compounds and white columns refer to “not-related” compounds. Subject P11's baseline data from the first equivalence test session are not presented here because, as the text notes, transitivity and equivalence tests were conducted inadvertently in the same session. Therefore, baseline data are presented only in Figure 4.