Table 2.
The Outcomes of the Six Regression Models in Which 16-kHz Thresholds Were Replaced by Hearing Thresholds at a Frequency From the Standard Audiometric Range (0.25–8 kHz) Are Shown.
| Dependent variable | Audiometric threshold entered | Adjusted R2 | F(df) | p value |
|---|---|---|---|---|
| ABR (Wave I/V) | 1000 Hz | .077 | 5.104 (3, 146) | .002* |
| EFR (4 kHz SNR) | 250 Hz | −.004 | 0.815 (3, 148) | .488 |
| IPD (80–40 dB SPL) | 4000 Hz | .110 | 7.378 (3, 152) | <.001* |
| AMD (80–40 dB SPL) | 4000 Hz | .222 | 15.518 (3, 150) | <.001* |
| CRM (80–40 dB SPL) | 1000 Hz | .027 | 2.405 (3, 152) | .070 |
| DTT (80–40 dB SPL) | 500 Hz | .219 | 15.45 (3, 152) | <.001* |
Note. Age, noise exposure, and hearing thresholds were entered into the model. Note that adjusted R2 can be negative in weak regression models. ABR = auditory brainstem response; EFR = envelope-following response; SNR = signal-to-noise ratio; IPD = interaural phase difference; SPL = sound pressure level; AMD = amplitude modulation detection; CRM = co-ordinate response measure; DTT = digit triplet test.
*
denotes a statistically significant model (alpha = .008).