Figure 4.

Boxplots of the data from all six posttest tasks in Experiment 1, split by training group (see Figure 2 for details on boxplot parameters). The following tasks were completed in Experiment 1: Task 1 (sentence recognition in quiet, 70 dB presentation level), Task 2 (sentence recognition in noise, +8 dB signal-to-noise ratio [SNR]), Task 3 (audio-only word recognition), Task 4 (audio-visual [AV] word recognition), Task 5 (prosodic contour discrimination), and Task 6 (environmental sound recognition). Groups differed significantly on Task 1, but no other task showed a significant main effect of group on performance. Pairwise group contrasts in Task 1 were significant for the interactive/control and lab/control comparisons.