Comparisons between means corresponding to the same level of factor stimuli set for both groups.

The one-tailed t-tests gave statistically significant differences for stimuli sets 1 and 2 (both groups), and 4 (group A only), showing the preponderant influence of the BI. Stimuli set 3 (DRR-only) showed only a marginal significant result for group A. The asterisks indicate differences that were significant at the 0.05 level.