Table 1.
Means and standard deviations of formant rise time (FRT) and amplitude rise time (ART) weighting factors, FRT and ART d′ values, word recognition scores, and vocabulary scores
| Measure | Mean | S.D. |
|---|---|---|
| FRT weighting factor | 3.00 | 2.33 |
| ART weighting factor | 2.85 | 1.74 |
| d′ FRT formant | 2.34 | 1.18 |
| d′ FRT sine wave | 1.54 | 1.32 |
| d′ ART formant | 2.59 | 1.26 |
| d′ ART sine wave | 2.54 | 1.12 |
| Word recognition score (% correct) | 53 | 24 |
| Standard vocabulary score | 98 | 27 |
Note: d′ values are average d′ across each FRT and ART continuum.