Table 4.

Multiple Regression Analyses Using Acoustic Predictors

All stimuli
R= 0.54 R2= 0.30 Adjusted R2= 0.28
Acoustic Variable	Beta	B
Spectral SD	0.36	0.00
No. of Peaks	0.33	0.03
Range of Autocorrelation Peaks	−0.15	−2.09
rms in Fc = 2000 Hz	−0.40	−2.83
rms in Fc = 8000 Hz	−0.24	−3.33

Congruent Stimuli
R= 0.61 R2= 0.38 Adjusted R2= 0.35
Acoustic Variable	Beta	B
Spectral SD	0.49	0.00
No. of Bursts	0.61	0.46
Max. Modulation Spectrum Burst	−0.56	−0.05
Range of Autocorrelation Peaks	−0.42	−8.28
Mean Cross-Channel Correlation	−0.42	−2.15

Incongruent Stimuli
R= 0.73 R2= 0.53 Adjusted R2= 0.51
Acoustic Variable	Beta	B
Mean Saliency	−1.17	−2.94
Max. Saliency	1.25	2.59
No. of Bursts	−0.36	−0.32
Mean Autocorrelation Peak	0.49	21.67
rms in Fc = 500 Hz	0.32	1.52