Summary of descriptive statistics and independent-samples t test (df = 82) comparing the mean peak modulation rate of each stimulus type's acoustic envelopes
| M | SD | t | p | |
|---|---|---|---|---|
| Slow (−30%) presentation rate | ||||
| Sentences | 0.98 | 0.59 | ||
| Melodies | 0.86 | 0.60 | ||
| Scrambled sentences | 1.52 | 0.32 | ||
| Sentences versus scrambled sentences | 11.6 | <0.00001 | ||
| Sentences versus melodies | 3.35 | 0.0012 | ||
| Normal rate | ||||
| Sentences | 1.26 | 0.78 | ||
| Melodies | 1.20 | 0.82 | ||
| Scrambled sentences | 2.13 | 0.42 | ||
| Sentences versus scrambled sentences | 14.1 | <0.00001 | ||
| Sentences versus melodies | 0.34 | 0.73 | ||
| Fast (+30% normal) rate | ||||
| Sentences | 1.60 | 0.90 | ||
| Melodies | 1.60 | 1.05 | ||
| Scrambled sentences | 2.79 | 0.52 | ||
| Sentences versus scrambled sentences | 12.1 | <0.00001 | ||
| Sentences versus melodies | 0.01 | 0.99 |