TABLE 1.
Statistical analyses for restoration benefit per age group
| Speech Rate (SR) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Age | Source | Slow (SR=0.5) | Normal (SR=1) | Fast (SR=2) | |||||||||
| df | MSE | F | p | df | MSE | F | p | df | MSE | F | p | ||
| Young adults | NOISE | 1, 11 | 123.86 | 10.54 | 0.008 | 1, 11 | 32.74 | 2.73 | 0.127 | 1, 11 | 40.07 | 131.70 | 0.000 |
| IR | 3, 33 | 38.75 | 94.81 | 0.000 | 2.18, 23.99 | 47.61 | 103.13 | 0.000 | 4, 44 | 61.20 | 47.61 | 0.000 | |
| NOISE × IR | 3, 33 | 42.41 | 10.26 | 0.000 | 4, 44 | 30.86 | 9.41 | 0.000 | 2.36, 25.98 | 93.13 | 84.88 | 0.000 | |
| Older adults | NOISE | 1, 11 | 153.30 | 31.53 | 0.000 | 1, 11 | 75.47 | 10.22 | 0.009 | 1, 11 | 45.72 | 141.82 | 0.000 |
| IR | 3, 33 | 91.94 | 37.01 | 0.000 | 2.23, 24.58 | 105.00 | 40.12 | 0.000 | 4, 44 | 65.61 | 74.94 | 0.000 | |
| NOISE × IR | 3, 33 | 98.17 | 7.97 | 0.000 | 4, 44 | 58.20 | 12.26 | 0.000 | 4, 44 | 59.16 | 61.83 | 0.000 | |
Results shown from separate RM-ANOVAs conducted to determine restoration benefit per age group and for each of the three different speech rates. Bold p values indicate significance below alpha of 0.05. The main factor NOISE denotes the difference in intelligibility after combining the interrupted sentences with filler noise, and hence shows if there is a significant restoration effect
IR and SR represent interruption rate and speech rate, respectively