Table 5.
Effect of factors in the final linear mixed model analysis (with compound symmetric covariance matrix) for unaided outcomes.
| Effect | Estimate | SE | df | t | p value |
|---|---|---|---|---|---|
| Intercept | 103.05 | 21.0046 | 60 | 4.91 | < .0001 |
| Visual cues (AO or AV) | 28.0899 | 1.1703 | 66 | 24.00 | < .0001 |
| Noise type (SSN or 4TB) | −5.1416 | 1.1703 | 66 | −4.39 | < .0001 |
| Age | 0.4021 | 0.2072 | 60 | 1.94 | .0570 |
| LF-PTA | −0.7042 | 0.2076 | 60 | −3.39 | .0012 |
| HF-PTA | −0.7347 | 0.2786 | 60 | −2.64 | .0106 |
| Factor 1 (BB & LP) | −10.6062 | 2.4488 | 60 | −4.33 | < .0001 |
| Factor 2 (HP) | −0.3454 | 2.6868 | 60 | −0.13 | .8981 |
| Site (UW or UI) | −24.9093 | 4.3984 | 60 | −5.66 | < .0001 |
Note. AO = auditory-only; AV = auditory–visual; SSN = steady-state noise; 4TB = four-talker babble; LF = low frequency; HF = high frequency; PTA = pure-tone average; BB = broadband; LP = low-pass; HP = high-pass; UW = University of Washington; UI = University of Iowa.