The main effect of Current trial type was significant, F(1, 90) = 113.20, p < .001, with accuracy being greater for compatible (M = 0.97, SD = 0.04) than incompatible (M = 0.90, SD = 0.08) trials. The main effect of Previous trial accuracy also was significant, F(1, 90) = 17.11, p < .001, with accuracy being greater following incorrect responses (M = 0.94, SD = 0.08) than following correct responses (M = 0.93, SD = 0.07). These effects were qualified by a significant Current trial type × Previous trial accuracy interaction, F(1, 90) = 11.35, p = .001. Planned comparisons revealed that accuracy on compatible trials did not differ significantly following correct (M = 0.98, SD = 0.02) and incorrect (M = 0.96, SD = 0.06) responses, F < 1.0, p > .05. For incompatible trials, however, accuracy was greater following incorrect responses (M = 0.91, SD = 0.09) than following correct responses (M = 0.89, SD = 0.07), F(1, 90) = 22.69, p < .001. The main effect and interactions with Group were not significant, Fs < 1, ps > .35.
