Slow Cortical Potentials and Amplification—Part II: Acoustic Measures

Table 4

ANOVA results for all measures of the long stimulus. Shown are p values of the ANOVA and of the simple main effects, where appropriate.

	20 dB gain			40 dB gain
	Amp 30 ms	Amp max	Rise time	Amp 30 ms	Amp max	Rise time
Main effects
Hearing aid (HA)	p  < 0.001	p = 0.656	p  < 0.001	p  < 0.001	p = 0.314	p  < 0.001
Input level (LVL)	p  < 0.001	p  = 0.005	p = 0.424	p = 0.027	p = 0.298	p = 0.016
HA × LVL	p = 0.031	p = 0.09	p  < 0.001	p = 0.091	p = 0.107	p = 0.029
Simple main effects
Effect of LVL
For analog	p = 0.023	p  = 0.009	p = 0.647	p = 0.956		p = 0.429
For digitalA	p = 0.006	p  = 0.067	p = 0.02	p = 0.134		p = 0.030
For digitalB	p  = 0.002	p  = 0.003	p = 0.07	p = 0.015		p = 0.007
Effect of HA
At 30 dB SPL	p  < 0.001	p = 0.457	p  < 0.001	p  < 0.001		p  < 0.001
At 50 dB SPL	p  < 0.001	p = 0.377	p  < 0.001	p  < 0.001		p  < 0.001
At 70 dB SPL	p  < 0.001	p = 0.97	p  < 0.001

Boldface indicates significance at p < .1. *: Indicates the analysis was not necessary.  —: indicates no data collected for those conditions.