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Audiometric thresholds (mean and standard deviation in dB) for the right ear across the three participant groups.
| Frequencies (Hz) | ||||||
|---|---|---|---|---|---|---|
|
|
||||||
| 250 | 500 | 1000 | 2000 | 4000 | 8000 | |
| Younger Normal Hearing Group | 7.5 (4.2) | 7.5 (5.9) | 5.0 (4.7) | 5.5 (4.4) | 4.0 (5.7) | 1.0 (8.4) |
| Older Normal Hearing Group | 9.5 (6.0) | 8.0 (4.8) | 10.0 (6.7) | 6.0 (5.7) | 17.5 (8.9) | 29.4 (20.2) |
| Older Hearing Impaired Group | 19.0 (5.7) | 24.0 (8.1) | 28.0 (9.2) | 45.0 (11.1) | 56.5 (10.3) | 64.0 (10.8) |
