Table 2.
| More than trials | Less than trials | Mixed nonlinear trials | |
| Phase 1 (eight trials per block) | A(1) > B(2) | none | none |
| B(1) > A(2) | |||
| B(2) < A(1) | |||
| A(2) < B(1) | |||
| Phase 2 (16 trials per block) | A(1) > B(2) | A(1) < B(2) | none |
| B(1) > A(2) | B(1) < A(2) | ||
| B(2) < A(1) | B(2) > A(1) | ||
| A(2) < B(1) | A(2) > B(1) | ||
| Phase 3 (eight trials per block) | A(1) > B(2) > C(3) | none | none |
| C(1) > B(2) > A(3) | |||
| C(3) < B(2) < A(1) | |||
| A(3) < B(2) < C(1) | |||
| Phase 4 (16 trials per block) | A(1) > B(2) > C(3) | A(1) < B(2) < C(3) | none |
| C(1) > B(2) > A(3) | C(1) < B(2) < A(3) | ||
| C(3) < B(2) < A(1) | C(3) > B(2) > A(1) | ||
| A(3) < B(2) < C(1) | A(3) > B(2) > C(1) | ||
| Phase 5 (eight trials per block) | none | none | A(1) > B(2 and 4) > C(3) |
| C(1) > B(2 and 4) > A(3) | |||
| C(3) < B(2 and 4) < A(1) | |||
| A(3)<B(2&4)<C(1) | |||
| Baseline and probes (40 trials per block) | A(1)>B(2) | A(1)<B(2) | A(1)>B(2&4)>C(3) |
| B(1)>A(2) | B(1)<A(2) | C(1)>B(2&4)>A(3) | |
| B(2)<A(1) | B(2)>A(1) | C(3)<B(2&4)<A(1) | |
| A(2)<B(2) | A(2)>B(1) | A(3)<B(2&4)<C(1) | |
| A(1)>B(2)>C(3) | A(1)<B(2)<C(3) | ||
| C(1)>B(2)>A(3) | C(1)<B(2)<A(3) | ||
| C(3)<B(2)<A(1) | C(3)>B(2)>A(1) | ||
| A(3)<B(2)<C(1) | A(3)>B(2)>C(1) |
Note. This table details the trial types for each phase and the number of trials used for each block. The letters indicate the stimulus; its position for that trial is shown sequentially from left to right and the order in which the experimenter pointed to the stimuli is shown by the number in parentheses. For instance, the less than trial A(1) < B(2) < C(3) indicates that A was the left stimulus, B was the center stimulus, and C was the right stimulus, and that they were pointed to in that order. > and < indicate the relation specified between stimuli. Thus, in the less than example A(1) < B(2) < C(3), the experimenter said “This [pointing to A] is less than this [pointing to B] and this [pointing to B] is less than this [pointing to C]. Which one would you use to buy more candy?” The underlined stimulus indicates the correct choice for each trial type.