TABLE IV.
Table of correlations of fusion results obtained with the 5AFC and 2AFC tests with various subject- and frequency-specific variables for HI listeners. Subject-specific variables are incorporated into independent principal components PC1 and PC2, described in Table III. Frequency-specific variables are represented by data at 1000 Hz. “*” indicates significant p-values (p < 0.05). Correlations are with fusion ranges unless indicated otherwise.
| Correlation results: HI subjects | 5AFC task | 2AFC task | ||
|---|---|---|---|---|
| r | p | r | p | |
| Subject-specific factors | ||||
| PC1 | 0.51 | 0.044* | 0.46 | 0.072 |
| PC2 | −0.21 | 0.446 | −0.03 | 0.898 |
| PC1, adjusted for PC2 | 0.52 | 0.047* | 0.46 | 0.084 |
| Average threshold, adjusted for PC1 | 0.02 | 0.936 | 0.17 | 0.555 |
| Average real-ear level, adjusted for PC1 | 0.15 | 0.608 | 0.20 | 0.504 |
| Average real-ear level difference from NAL-2 target, adjusted for PC1 | 0.11 | 0.710 | −0.0002 | 0.9995 |
| Frequency-specific factors | ||||
| Reference threshold shift, adjusted for PC1 | 0.24 | 0.426 | 0.32 | 0.294 |
| Reference real-ear level, adjusted for PC1 | −0.04 | 0.905 | 0.11 | 0.742 |
| ||Pitch mismatch||, adjusted for PC1 | 0.08 | 0.811 | 0.10 | 0.983 |
| Pitch bandwidth, adjusted for PC1 | 0.19 | 0.569 | −0.18 | 0.597 |
| Fusion center versus pitch mismatch, adjusted for PC1 | 0.24 | 0.484 | 0.30 | 0.374 |