Table 1. Schema for Selecting Trials Conditional on Repeated, Correct “Interval 2” Presponses, for N = 0 . . . 3.

Response	2	2	1	1	2	2	1	2	2	2	1	1	2	1	1	1	2	1
Note. The first two rows show the target and response intervals for 18 hypothetical trials. For each subset of data, the trials that would be used to calculate bias are marked with an obelisk (†). Analogous subsets of trials (not shown here) were also constructed for those trials preceded by incorrect and/or Interval 1 responses.
Correct	0	1	1	1	0	1	1	1	1	1	1	0	0	1	1	0	1	1
N = 0	†	†		†	†	†		†				†	†	†	†	†	†
N = 1			†				†		†									†
N = 2										†
N = 3											†