Hole-entering response rate ordinal comparisons within individuals for the final FI session under the prediction that responding would increase across the interval.

Intervals were divided into two equal duration bins, and combinations of these bins were ordinally compared. PCC values and accompanying c-values are displayed for individuals. Only one subject's PCC value was higher than a binomial comparison, but did not reliably differ from the randomized PCC values.*Subject did not complete the 20th FI session.