Table 3.
Principal Component Weights or Factor Loadings*
| Variable | PC-Subjective Benefit and Satisfaction (26.5%) | PC-Speech Recognition Performance (25.2%) | PC-Hearing Aid Usage (14.8%) |
|---|---|---|---|
| HDABI-use (0.81) | 0.35 | −0.80 | |
| GHABP-use (0.82) | −0.30 | 0.84 | |
| Daily use (0.68) | 0.82 | ||
| HAPI-spn (0.76) | 0.87 | ||
| HAPI-spq (0.70) | 0.75 | −0.34 | |
| HAPI-red-cues (0.69) | 0.79 | ||
| HAPI-nonspeech (0.76) | 0.79 | −0.35 | |
| HDABI-ben (0.53) | 0.67 | ||
| GHABP-ben (0.68) | −0.69 | 0.46 | |
| GHABP-perf (0.50) | 0.60 | 0.33 | |
| MarkeTrakIV (0.67) | −0.79 | ||
| GHABP-sat (0.72) | −0.76 | 0.37 | |
| NST-unaided (0.64) | 0.77 | ||
| NST-aided (0.54) | 0.72 | ||
| CST50-unaided (0.68) | 0.80 | ||
| CST65-unaided (0.78) | 0.86 | ||
| CST80-unaided (0.54) | 0.72 | ||
| CST50-aided (0.71) | 0.84 | ||
| CST65-aided (0.59) | 0.76 | ||
| CST80-aided (0.49) | 0.70 |
*
Loadings are given for each of the three orthogonal components identified in the analysis of the hearing-aid outcome measures from the Indiana University-1 (IU-1) study. The communality value for each variable has been provided in parentheses after the variable name. Weights less than 0.30 have been omitted from the table for clarity. The percentage of variance accounted for by each of the three principal components is indicated in parentheses following each component's label. PC, orthogonal principal component from factor analysis of prefit measures in the IU-1 study. See Table 2 for other abbreviations.