Table 4.
The standard error of biological calibration with corresponding confidence intervals at P=.05 estimated on the basis of measurements carried out by 25 participants.
| Method | Reference sound level (dB), SE (95% CI) | ||
|
|
Independent coefficients | Modeled coefficients | Single coefficient |
| Modulated signal | 5.38 (4.89, 5.98) | 7.07 (5.95, 8.38) | 7.61 (6.35, 9.24) |
| Dual tone (5 dB) | 6.71 (6.10, 7.45) | 7.21 (6.09, 8.53) | 8.60 (7.32, 10.26) |
| Dual tone (2 dB) | 7.07 (6.43, 7.85) | 7.26 (6.13, 8.57) | 8.89 (7.60, 10.55) |
| Ascending (5-dB step) | 5.91 (5.37, 6.56) | 7.12 (6.00, 8.44) | 7.99 (6.73, 9.63) |
| Ascending (2-dB step) | 5.39 (4.90, 5.99) | 7.07 (5.95, 8.38) | 7.62 (6.36, 9.25) |
| Bekesy (continual) | 5.35 (4.87, 5.95) | 7.07 (5.95, 8.38) | 7.59 (6.33, 9.23) |
| Bekesy (modulated) | 4.90 (4.46, 5.45) | 7.03 (5.91, 8.34) | 7.28 (6.02, 8.91) |